{"id":3949,"date":"2021-05-20T16:38:50","date_gmt":"2021-05-20T08:38:50","guid":{"rendered":"http:\/\/www.comtest.cn\/?p=3949"},"modified":"2021-06-29T09:52:46","modified_gmt":"2021-06-29T01:52:46","slug":"%e6%b5%8b%e8%af%95%e5%8f%af%e6%8f%92%e6%8b%94%e7%9b%b8%e5%b9%b2%e5%85%89%e6%a8%a1%e5%9d%97","status":"publish","type":"post","link":"http:\/\/www.comtest.com.cn\/?p=3949","title":{"rendered":"\u6d4b\u8bd5\u53ef\u63d2\u62d4\u76f8\u5e72\u5149\u6a21\u5757"},"content":{"rendered":"<p><strong>\u4f5c\u8005\uff1aPaul Brooks\uff0cVIAVI Solutions<\/strong><\/p><p>\u7528\u4e8e DWDM \u4f20\u8f93\u7684\u76f8\u5e72\u4f20\u8f93\u6a21\u5757\u5df2\u7ecf\u4f7f\u7528\u4e86\u4e00\u6bb5\u65f6\u95f4\uff0c\u4f46\u8fd9\u4e9b\u901a\u5e38\u662f\u4f9b\u5e94\u5546\u7279\u5b9a\u7684\u5c01\u95ed\u5f0f\u5de5\u7a0b\u7cfb\u7edf\u3002\u6700\u8fd1\uff0c\u6839\u636e MSA \u548c\u5176\u4ed6\u6807\u51c6\u8bbe\u8ba1\u51fa\u4e86\u53ef\u63d2\u62d4\u76f8\u5e72\u6a21\u5757\uff0c\u76f8\u5e72\u53ef\u63d2\u62d4\u5149\u7ea4\u751f\u6001\u7cfb\u7edf\u5e94\u8fd0\u800c\u751f\u3002IEEE 802.3 \u91c7\u7528\u5bc6\u96c6\u6ce2\u5206\u590d\u7528\u6280\u672f\uff0c\u5728 ZR PMD \u4e0a\u5b9e\u73b0\u4e86 100G \u548c 400G \u94fe\u8def\u7684 80 \u5343\u7c73\u94fe\u8def\u9884\u7b97\uff0c\u8fd9\u4f7f\u5f97\u4eba\u4eec\u5bf9\u53ef\u63d2\u62d4\u76f8\u5e72\u5149\u6a21\u5757\u7684\u5f00\u53d1\u548c\u90e8\u7f72\u4ea7\u751f\u4e86\u66f4\u5e7f\u6cdb\u7684\u5174\u8da3\u3002<\/p><p>\u672c VIAVI \u767d\u76ae\u4e66\u4ecb\u7ecd\u4e86\u53ef\u63d2\u62d4\u76f8\u5e72\u5149\u6a21\u5757\uff0c\u4ee5\u53ca\u4e3a 100G \u53ca\u66f4\u9ad8\u5e26\u5bbd\u6210\u529f\u5f00\u53d1\u3001\u9a8c\u8bc1\u548c\u90e8\u7f72\u53ef\u63d2\u62d4\u76f8\u5e72\u5149\u6a21\u5757\u6240\u9700\u7684\u6d4b\u8bd5\u4ee5\u53ca\u9a8c\u8bc1\u6311\u6218\u548c\u65b9\u6cd5\u3002<\/p><h1 class=\"wp-block-heading\">\u76ee\u524d\u7684\u5149\u63a5\u53e3<\/h1><p>\u5982\u4eca\uff0c\u53ef\u63d2\u62d4\u63a5\u53e3\u7684\u7075\u6d3b\u6027\u4e00\u76f4\u662f\u4ee5\u592a\u7f51\u6210\u529f\u7684\u4e00\u4e2a\u4e3b\u8981\u56e0\u7d20\uff0c\u5b83\u5141\u8bb8\u7528\u6237\u4ee5\u9002\u5f53\u7684\u6210\u672c\u6269\u5c55\u5e26\u5bbd\u548c\u201c\u6309\u9700\u201d\u63a5\u5165\u3002 \u5982\u679c\u6211\u4eec\u770b\u4e00\u4e0b 400G \u4ee5\u592a\u7f51\u7684\u60c5\u51b5\uff0c\u6700\u7ec8\u7528\u6237\u5177\u6709\u5e7f\u6cdb\u7684\u63a5\u53e3\u7c7b\u578b\u6765\u652f\u6301\u6bcf\u4e2a\u6f5c\u5728\u7684\u5e94\u7528\uff1a<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td><strong>PMD<\/strong><\/td><td><strong>\u8303\u56f4<\/strong><\/td><td><strong>\u5e94\u7528<\/strong><\/td><td><strong>\u6280\u672f<\/strong><\/td><\/tr><tr><td>DAC<\/td><td>2 \u5230 3 \u7c73<\/td><td>\u673a\u67b6\u5185\u548c\u670d\u52a1\u5668<\/td><td>\u65e0\u6e90\u94dc\u7f06\u300150G PAM-4 \u7535\u53e3<\/td><\/tr><tr><td>SR8<\/td><td>100 \u7c73<\/td><td>\u4f01\u4e1a<\/td><td>\u5e76\u884c\u591a\u6a21\u300250G\/\u03bb \u2013 PAM-4<\/td><\/tr><tr><td>DR4<\/td><td>500 \u7c73<\/td><td>\u6570\u636e\u4e2d\u5fc3\u548c\u4f01\u4e1a<\/td><td>\u5e76\u884c\u5355\u6a21\uff0c100G\/\u03bb \u2013 PAM-4\uff0c\u4e5f\u53ef\u652f\u6301 4 x 100G \u5206\u652f\uff0c \u56e0\u4e3a\u6bcf\u4e2a100G \u6709\u4e0d\u540c\u7684\u5149\u7ea4\u3002<\/td><\/tr><tr><td>FR4<\/td><td>2 \u5343\u7c73<\/td><td>\u5927\u89c4\u6a21\u6570\u636e\u4e2d\u5fc3<\/td><td>\u5355\u6a21\uff0c100G\/\u03bb\uff0cPAM-4<\/td><\/tr><tr><td>LR8<\/td><td>10 \u5343\u7c73<\/td><td>\u7535\u4fe1\u8986\u76d6<\/td><td>\u5355\u6a21\uff0c50G\/\u03bb\uff0cPAM-4<\/td><\/tr><tr><td>ZR<\/td><td>80 \u5343\u7c73<\/td><td>\u57ce\u57df\u7f51\u548c DCI<\/td><td>\u5355\u6a21\/\u76f8\u5e72\uff0cPAM-4<\/td><\/tr><\/tbody><\/table><figcaption>\u8868 1 \u2013 \u6807\u51c6\u5316 400G \u4ee5\u592a\u7f51\u63a5\u53e3\u7684 PMD\u3001\u8868\u5f81\u548c\u5e94\u7528<\/figcaption><\/figure><p>\u4f20\u7edf\u4e0a\uff0c\u53ef\u63d2\u62d4\u5149\u7ea4\u7684\u5927\u591a\u6570\u5e94\u7528\u4f4d\u4e8e 10 \u5343\u7c73\u4ee5\u4e0b\uff0c\u56e0\u6b64\u53ef\u4ee5\u901a\u8fc7\u57fa\u4e8e\u76f4\u8fde\u94dc\u7f06\u3001\u57fa\u4e8e\u591a\u6a21 VCSEL \u6216\u5355\u6a21\u76f4\u63a5\u63a2\u6d4b\u5149\u5b66\u6280\u672f\u6765\u6709\u6548\u89e3\u51b3\u3002\u968f\u7740\u6570\u636e\u901f\u7387\u7684\u589e\u52a0\uff0c\u4fe1\u4ee4\u901f\u7387\u7a33\u6b65\u589e\u52a0\uff0c\u91c7\u7528 400G \u65f6\uff0c\u5411\u9ad8\u9636\u8c03\u5236 (NRZ=&gt;PAM-4) \u8f6c\u53d8\u3002\u7136\u800c\uff0c\u7edd\u5927\u591a\u6570\u5e94\u7528\u90fd\u88ab\u4f20\u7edf\u7684\u201c\u76f4\u63a5\u68c0\u6d4b\u201d\u6280\u672f\u6240\u8986\u76d6\u3002<\/p><p>\u66f4\u957f\u7684\u8ddd\u79bb\u4f20\u7edf\u4e0a\u662f\u901a\u8fc7\u57fa\u4e8e\u5b9a\u5236\u5149\u7535\u5b50\u548c ASIC \u7684\u9ad8\u6027\u80fd\u3001\u7279\u5b9a\u4e8e\u4f9b\u5e94\u5546\u7684\u76f8\u5e72\u7ebf\u8def\u5361\u6a21\u5757\u6765\u89e3\u51b3\u7684\uff0c\u4f46\u6700\u8fd1\uff0c Acacia \u7b49\u4f9b\u5e94\u5546\u5df2\u7ecf\u5f00\u53d1\u51fa\u4e0e\u5ba2\u6237\u5149\u7ea4\u63d2\u69fd\u517c\u5bb9\u7684\u9ad8\u6027\u80fd\u53ef\u63d2\u62d4\u6a21\u5757\uff08\u5c3d\u7ba1\u5bf9\u7535\u6e90\u3001\u51b7\u5374\u548c\u7ba1\u7406\u7684\u8981\u6c42\u66f4\u4e3a\u82db\u523b\uff09\u3002\u6700\u521d\u7684\u91cd\u70b9\u662f\u7535\u4fe1\u5e94\u7528\uff0c\u4f46\u5728\u6570\u636e\u4e2d\u5fc3\u4e92\u8fde (DCI) \u7b49\u9886\u57df\u51fa\u73b0\u4e86\u8d8a\u6765\u8d8a\u5927\u7684\u5e02\u573a\u3002\u8986\u76d6\u8303\u56f4\u6700\u597d\u901a\u8fc7\u76f8\u5e72\u5149\u5b50\u63a5\u53e3\u6765\u5b9e\u73b0\uff0c\u8981\u8fbe\u5230\u5e02\u573a\u6f5c\u529b\uff0c\u5fc5\u987b\u6ee1\u8db3\u9ad8\u5bc6\u5ea6\u5916\u5f62\u89c4\u683c\uff08\u5305\u62ec\u7535\u6e90\u548c\u51b7\u5374\uff09\u548c\u6fc0\u8fdb\u7684\u4ef7\u683c\u9884\u671f\uff0c\u4ee5\u4e0e\u5e02\u573a\u9884\u671f\u4fdd\u6301\u4e00\u81f4\u3002<\/p><h1 class=\"wp-block-heading\">\u76ee\u524d\u7684\u5ba2\u6237\u7aef\u5149\u5b66\u5668\u4ef6<\/h1><p>\u76ee\u524d\u5df2\u7ecf\u90e8\u7f72\u4e86\u591a\u79cd\u5916\u5f62\u89c4\u683c\uff0c\u4f46\u5ba2\u6237\u7aef\u63a5\u53e3\u4e2d\u6700\u6d41\u884c\u7684\u4e24\u4e2a\u6765\u81ea\u4e24\u4e2a\u7cfb\u5217\u4e4b\u4e00\u3002SFP \u7cfb\u5217\u901a\u5e38\u6709\u4e00\u4e2a\u4e0e\u4e00\u4e2a\u5149\u901a\u9053\u76f8\u5339\u914d\u7684\u7535\u901a\u9053\uff0c\u5e76\u4e14\u7ecf\u5e38\u51fa\u73b0\u5728\u670d\u52a1\u5668\u6216\u624b\u673a\u57fa\u7ad9\u7b49\u201c\u7ec8\u7aef\u8bbe\u5907\u201d\u4e2d\uff0c\u800c QSFP \u7cfb\u5217\u4f7f\u7528\u5e76\u884c\u7684\u5149\u548c\u7535\u901a\u9053\uff08\u5b83\u4f20\u7edf\u4e0a\u4f7f\u7528 4 \u4e2a\u7535\u901a\u9053\uff0c\u5927\u591a\u6570\u60c5\u51b5\u4e0b\u4f7f\u7528 4 \u4e2a\u5149\u5b50\u901a\u9053\u4f5c\u4e3a\u5e76\u884c\u5149\u7ea4\u6216\u5728 CWDM \u5149\u7f51\u683c\u4e0a\u5177\u6709\u4fe1\u53f7\u7684\u5355\u6839\u5149\u7ea4\uff09\u3002\u6211\u4eec\u5c06\u91cd\u70b9\u4ecb\u7ecd QSFP-DD\uff0c\u6df1\u5165\u7814\u7a76\u5ba2\u6237\u7aef\u5149\u7ea4\uff0c\u56e0\u4e3a\u5b83\u901a\u5e38\u51fa\u73b0\u5728\u5904\u7406\u6700\u5927\u5e26\u5bbd\u7684\u4ea4\u6362\u673a\u3001\u8def\u7531\u5668\u548c\u4f20\u8f93\u8bbe\u5907\u7b49\u7f51\u5143\u4e2d\u3002<\/p><p>\u76ee\u524d\u7528\u4e8e\u5ba2\u6237\u7aef\u63a5\u53e3\u7684\u5178\u578b\u9ad8\u7aef 400G \u53ef\u63d2\u62d4\u6a21\u5757\u662f QSFP-DD \u6a21\u5757\u3002\u8fd9\u4e00\u5de5\u7a0b\u878d\u5408\u4e86\u9ad8\u901f\u6570\u5b57\u7535\u5b50\u3001\u5bbd\u5e26\u548c\u4f4e\u566a\u58f0\u6a21\u62df\u7535\u5b50\u3001DSP \u56fa\u4ef6\u3001\u5fae\u63a7\u5236\u5668\u3001\u96c6\u6210\u5149\u5b50\u5b66\u548c\u673a\u68b0\u96c6\u6210\uff0c\u6240\u6709\u8fd9\u4e9b\u90fd\u5411\u6fc0\u8fdb\u7684\u4ef7\u683c\u548c\u6027\u80fd\u9884\u671f\u770b\u9f50\u3002<\/p><p>\u9700\u8981\u89e3\u51b3\u51e0\u4e2a\u5173\u952e\u9886\u57df\u7684\u95ee\u9898\uff1a<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_01.jpg\"><img fetchpriority=\"high\" decoding=\"async\" width=\"507\" height=\"126\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_01.jpg\" alt=\"\" class=\"wp-image-3950\" srcset=\"http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_01.jpg 507w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_01-300x75.jpg 300w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_01-64x16.jpg 64w\" sizes=\"(max-width: 507px) 100vw, 507px\" \/><\/a><figcaption>\u56fe 1 \u2013 400G QSFP-DD \u6a21\u5757\u7684\u5185\u90e8\u89c6\u56fe<\/figcaption><\/figure><\/div><p>\u53ef\u63d2\u62d4\u7535\u63a5\u53e3\uff08\u5728 QSFP-DD \u4e2d\u662f\u53cc\u9762\u3001\u53cc\u53e0\u5c42\u8fde\u63a5\u5668\uff09\u4f7f\u5e76\u884c\u9ad8\u901f\u7535\u4e3b\u673a\u80fd\u591f\u8fde\u63a5\u5230\u6a21\u5757\u63a5\u53e3\u3002\u5728 400G \u4ee5\u592a\u7f51\u4e2d\uff0c\u8fd9\u901a\u5e38\u662f\u4f7f\u7528 PAM-4 \u7535\u6c14\u8c03\u5236\u7684 8 \u4e2a\u5e76\u884c\u5dee\u5206\u901a\u9053\uff08\u4f7f\u7528\u9ad8\u6027\u80fd\u6570\u5b57 SERDES\uff09\uff0c\u5e76\u652f\u6301\u4e3b\u673a\u5230\u6a21\u5757\u63a5\u53e3\u7684\u5747\u8861\u3002\u8fde\u63a5\u5668\u8fd8\u9700\u8981\u63d0\u4f9b\u547d\u4ee4\/\u63a7\u5236\u63a5\u53e3\uff0c\u901a\u5e38\u8fd9\u4e9b\u63a5\u53e3\u57fa\u4e8e\u53cc\u7ebf\u63a5\u53e3\uff0c\u5982\u4f7f\u7528\u534f\u8bae\u7684 I\u00b2C\u3002 400G QSFP-DD \u901a\u5e38\u4f7f\u7528 CMIS 4.0\uff0c\u8fd9\u662f\u4e00\u79cd\u9ad8\u7ea7\u6709\u72b6\u6001\u534f\u8bae\uff0c\u4e13\u4e3a 400G \u5149\u5b66\u5668\u4ef6\u7684\u9700\u6c42\u548c\u5e94\u7528\u800c\u8bbe\u8ba1\u3002\u8fde\u63a5\u5668\u4e0a\u8fd8\u6709\u7535\u6e90\uff08\u901a\u5e38\u4e3a 3.3V\uff0c4A \u4ee5\u4e0a\uff09\u4e3a\u6a21\u5757\u4e2d\u7684\u7535\u5b50\u548c\u5149\u5b50\u5668\u4ef6\u63d0\u4f9b\u6240\u9700\u7684\u7535\u6e90\u3002<\/p><p>\u6a21\u5757\u5185\u90e8\u9ad8\u5ea6\u96c6\u6210\u7684\u96c6\u6210\u7535\u8def\u5305\u62ec SERDES\uff0c\u73b0\u5728\u901a\u5e38\u57fa\u4e8e DSP\uff0c\u652f\u6301\u4e3b\u673a\u548c\u6a21\u5757\u4e4b\u95f4\u7684\u5747\u8861\uff0c\u5e76\u63d0\u4f9b\u4ece 28Gbd PAM-4 \u7684 8 \u901a\u9053\u5230\u5149\u5b50\u63a5\u53e3\uff08\u4f8b\u5982 DR4 \u548c LR4\uff09\u4e0a\u4f7f\u7528\u7684 4 \u901a\u9053 100G\/\u03bb (56Gbd PAM-4) \u7684\u590d\u7528\u5668\u548c\u89e3\u590d\u7528\u5668\u3002IC \u9700\u8981\u590d\u6742\u7684\u56fa\u4ef6\uff0c\u5c24\u5176\u662f DSP \u4ee3\u7801\uff0c\u5e76\u4e14\u6a21\u5757\u7684\u7ba1\u7406\u548c\u63a7\u5236\u901a\u8fc7\u5fae\u63a7\u5236\u5668\u6765\u534f\u8c03\uff0c\u8be5\u5fae\u63a7\u5236\u5668\u5c06\u7528\u4e8e\u6a21\u5757\u7ba1\u7406\uff08\u5373 CMIS4.0\uff09\u3001\u6240\u6709\u6b63\u5e38\u7684\u5185\u52a1\u548c\u7ba1\u7406\uff08\u5982\u51b7\u5374\u548c\u7535\u6e90\u7ba1\u7406\uff09\u3001DSP \u7684\u56fa\u4ef6\u52a0\u8f7d\u548c\u7ba1\u7406\u4ee5\u53ca\u5f53\u7136\u8fd8\u6709\u5149\u5b66\u5668\u4ef6\u7684\u6240\u6709\u8981\u6c42\u7684\u534f\u8bae\u6808\u7ec4\u5408\u5728\u4e00\u8d77\u3002\u5149\u7535\u8bbe\u5907\u5c06\u7531\u9ad8\u5ea6\u96c6\u6210\u7684\u6fc0\u5149\u5668\u548c\u63a5\u6536\u5668\u7ec4\u6210\uff0c\u5b83\u4eec\u90fd\u7b26\u5408\u53ef\u9760\u800c\u7cbe\u786e\u7684\u6807\u51c6\uff0c\u5982 IEEE 802.3\u3002\u53d1\u5c04\u5668\u548c\u63a5\u6536\u5668\u90fd\u9700\u8981\u8868\u73b0\u51fa\u5bbd\u5e26\u5bbd\u3001\u4f4e\u566a\u58f0\u548c\u826f\u597d\u7684\u7ebf\u6027\u5ea6\uff0c\u4ee5\u6ee1\u8db3\u529f\u8017\u548c\u6563\u70ed\u8981\u6c42\u3002<\/p><p>\u8fd9\u4e9b\u7ec4\u4ef6\u5b89\u88c5\u5728\u5fc5\u987b\u7ba1\u7406\u4fe1\u53f7\u5b8c\u6574\u6027\u95ee\u9898\u7684\u5fae\u578b PCB \u4e0a\uff0c\u7136\u540e\u5168\u90e8\u96c6\u6210\u5230\u5177\u6709\u82db\u523b\u7684\u5916\u5f62\u89c4\u683c\u548c\u4f53\u79ef\u8981\u6c42\u7684 QSFP-DD \u4e2d\uff01QSFP-DD \u786e\u5b9e\u662f\u4e00\u4e2a\u591a\u5b66\u79d1\u7684\u5de5\u7a0b\u5947\u8ff9\uff01<\/p><h1 class=\"wp-block-heading\">\u5f53\u4eca\u7684\u76f8\u5e72\u5149\u5b66\u5668\u4ef6<\/h1><p>\u76f8\u5e72\u5149\u5b66\u5668\u4ef6\u5728\u73b0\u4ee3\u957f\u8ddd\u79bb\u5149\u7ea4\u5149\u901a\u4fe1\u94fe\u8def\u4e2d\u8d77\u7740\u91cd\u8981\u7684\u4f5c\u7528\u3002\u5b83\u4eec\u901a\u5e38\u4e13\u6ce8\u4e8e\u9ad8\u7684\u6027\u80fd\uff0c\u5e76\u5728\u5927\u578b\u56fa\u5b9a\u6a21\u5757\u4e0a\u4f7f\u7528\u81ea\u5b9a\u4e49\u5149\u7535\u8bbe\u5907\u548c ASIC\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_02_800.jpg\"><img decoding=\"async\" width=\"800\" height=\"304\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_02_800.jpg\" alt=\"\" class=\"wp-image-3951\" srcset=\"http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_02_800.jpg 800w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_02_800-300x114.jpg 300w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_02_800-768x292.jpg 768w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_02_800-600x228.jpg 600w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_02_800-64x24.jpg 64w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><figcaption>\u56fe 2 &#8211; \u76f8\u5e72\u5149\u5b66\u5668\u4ef6\u7684\u53d1\u5c55 &#8211; \u4ece\u7ebf\u5361\u5230\u53ef\u63d2\u62d4\u6a21\u5757<\/figcaption><\/figure><\/div><p>\u5982\u4e0a\u56fe\u6240\u793a\uff0c\u4ece\u5de5\u7a0b\u5316\u7684\u9ad8\u6027\u80fd\u7ebf\u5361\u5230\u5f00\u653e\u7684\u53ef\u4e92\u64cd\u4f5c\u751f\u6001\u7cfb\u7edf\u7684\u6f14\u53d8\u9700\u8981\u591a\u4e2a\u90e8\u5206\u7684\u914d\u5408\uff0c\u540c\u65f6\u4e5f\u7ed9\u6d4b\u8bd5\u3001\u9a8c\u8bc1\u548c\u751f\u4ea7\u5e26\u6765\u4e86\u591a\u91cd\u6311\u6218\u3002\u867d\u7136\u4f9b\u5e94\u5546\u4e3a 100G \u548c 200G\uff08CFP \u548c CFP2\u5916\u5f62\u89c4\u683c\uff09\u751f\u4ea7\u4e86\u53ef\u63d2\u62d4\u7684\u76f8\u5e72\u6a21\u5757\uff0c\u4f46\u6b64\u751f\u6001\u7cfb\u7edf\u7684\u6781\u4f73\u4f4d\u7f6e\u51fa\u73b0\u5728 400GE\uff0c\u5e94\u7528\u4e8e DCI\u3001\u57ce\u57df\u7f51\u548c\u4e24\u4e2a\u4e0d\u540c\u5e02\u573a\u7684\u4f20\u7edf DWDM\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_03_800.jpg\"><img decoding=\"async\" width=\"800\" height=\"381\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_03_800.jpg\" alt=\"\" class=\"wp-image-3952\" srcset=\"http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_03_800.jpg 800w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_03_800-300x143.jpg 300w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_03_800-768x366.jpg 768w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_03_800-600x286.jpg 600w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_03_800-64x30.jpg 64w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><figcaption>\u56fe 3 \u2013 \u51fa\u73b0\u5728400G \u6700\u4f73\u4f4d\u7f6e\u7684\u4e24\u4e2a\u4e0d\u540c\u7684 DCO \u5e02\u573a<\/figcaption><\/figure><\/div><p>ZR\u3001ZR+ \u548c OpenROADM\u00b3 \u4e2d\u7684\u5e94\u7528\u53ef\u80fd\u4f1a\u8fdb\u4e00\u6b65\u5206\u5272\u57ce\u57df\u7f51\/DCI \u7684\u7a7a\u95f4\uff0c\u5c3d\u7ba1\u4ece\u4e2d\u671f\u6765\u770b\uff0c\u8fd9\u4e9b\u5e94\u7528\uff08\u57fa\u4e8e QSFP-DD \u548c OSFP \u7b49\u66f4\u7d27\u51d1\u7684\u5916\u5f62\u89c4\u683c\uff09\u53ef\u80fd\u4f1a\u901a\u8fc7\u4e00\u79cd\u6a21\u5757\u6765\u89e3\u51b3\uff0c\u8be5\u6a21\u5757\u5177\u6709\u901a\u8fc7\u8f6f\u4ef6\u548c\u56fa\u4ef6\u5b9e\u73b0\u7684\u7528\u6237\u53ef\u9009\u64cd\u4f5c\u6a21\u5f0f\u3002<\/p><p>\u5ba2\u6237\u7aef\u5149\u5b66\u5668\u4ef6\u901a\u5e38\u4f7f\u7528\u7b80\u5355\u7684\u5f3a\u5ea6\u8c03\u5236\uff08\u4f20\u7edf\u4e0a\u662f NRZ \u2013 \u5f00\/\u5173\u952e\u63a7 \u2013 OOK\uff09\uff0c\u4f46\u968f\u7740 400G \u7684\u51fa\u73b0\uff0c\u6211\u4eec\u770b\u5230 PAM-4 \u8c03\u5236\u73b0\u5728\u5728\u6bcf\u6761\u901a\u9053\u7684 50G \u53ca\u4ee5\u4e0a\u7684\u6240\u6709\u901f\u7387\u4e2d\u90fd\u5f88\u5e38\u89c1\u3002\u76f8\u5e72\u8c03\u5236\u5229\u7528\u5149\u7684\u76f8\u4f4d\u548c\u504f\u632f\u6765\u63d0\u4f9b\u9ad8\u5f97\u591a\u7684\u8c03\u5236\u80fd\u529b\uff0c\u5e76\u4e14\u56e0\u4e3a\u63a5\u6536\u5668\u5177\u6709\u76f8\u4f4d\u548c\u504f\u632f\u6001\u7075\u654f\u5ea6\uff0c\u6240\u4ee5\u8272\u6563\u8865\u507f\u4e5f\u53ef\u4ee5\u901a\u8fc7\u7535\u5b50\u65b9\u5f0f\u8fdb\u884c\u3002\u4f20\u7edf\u8c03\u5236\u9700\u8981\u5bf9 40 \u5343\u7c73\u4ee5\u4e0a\u7684\u94fe\u8def\u8272\u6563\u8fdb\u884c\u8865\u507f\u3002\u4f20\u7edf\u5ba2\u6237\u5149\u5b66\u7cfb\u7edf\u4e2d\u4f7f\u7528\u7684\u7b80\u5355\u5f3a\u5ea6\u8c03\u5236\u76f4\u89c2\u800c\u7b80\u5355\uff0c\u6fc0\u5149\uff08\u76f4\u63a5\u65b9\u5f0f\uff0c\u901a\u8fc7\u76f4\u63a5\u8c03\u5236\u6fc0\u5149\u5668 (DML) \u6216\u901a\u8fc7\u5916\u90e8\u8bbe\u5907\uff08\u5916\u90e8\u8c03\u5236\u6fc0\u5149\u5668\uff0cEML\uff09\uff09\u7684\u5149\u5f3a\u5ea6\u8c03\u5236\u4e0e\u6570\u636e\u4e00\u81f4\u3002\u8fd9\u6709\u65f6\u79f0\u4e3a\u5f00\u5173\u952e\u63a7 (OOK)\u3002\u76ee\u524d\u8fd9\u65b9\u9762\u7684\u5b9e\u9645\u4e0a\u9650\u7ea6\u4e3a 50GHz\uff0c\u56e0\u6b64 28 Gbd \u548c56 Gbd\uff08100G\/\u901a\u9053\uff09\u5bf9\u4e8e\u5546\u4e1a\u5316\u6279\u91cf\u751f\u4ea7\uff08\u56e0\u6b64\u6210\u672c\u5408\u7406\uff09\u7684\u8bbe\u5907\u6765\u8bf4\u662f\u5b9e\u7528\u7684\uff0c200Gb100G\/\u901a\u9053\u7684\u66f4\u9ad8\u5e26\u5bbd\u5df2\u5f97\u5230\u8bc1\u660e\uff0c\u4f46\u8fd9\u4e9b\u4ecd\u7136\u662f\u65b0\u9896\u7684\u3002<\/p><p>\u5229\u7528\u76f8\u5e72\u8c03\u5236\uff0c\u5149\u3001\u504f\u632f\u548c\u76f8\u4f4d\u7684\u9ad8\u7ea7\u7279\u6027\u53ef\u4ee5\u88ab\u5229\u7528\u6765\u63d0\u4f9b\u9ad8\u5f97\u591a\u7684\u6570\u636e\u901f\u7387\uff0c\u800c\u4ee3\u4ef7\u662f\u53d1\u5c04\u5668\u548c\u63a5\u6536\u5668\u66f4\u52a0\u590d\u6742\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_04_800.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"392\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_04_800.jpg\" alt=\"\" class=\"wp-image-3953\" srcset=\"http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_04_800.jpg 800w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_04_800-300x147.jpg 300w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_04_800-768x376.jpg 768w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_04_800-600x294.jpg 600w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_04_800-64x31.jpg 64w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><figcaption>\u56fe 4 &#8211; \u76f8\u5e72\u4f20\u8f93\u7cfb\u7edf\u5173\u952e\u65b9\u9762\u7684\u56fe\u793a<\/figcaption><\/figure><\/div><p>\u5178\u578b\u7684\u76f8\u5e72\u548c\u5bc6\u96c6\u6ce2\u5206\u590d\u7528\u7cfb\u7edf\u4f7f\u7528 1550 \u7eb3\u7c73\u6ce2\u6bb5\uff0c\u8fd9\u662f\u635f\u8017\u6700\u5c0f\u7684\u533a\u57df\uff0c\u662f\u957f\u8ddd\u79bb\u4f20\u8f93\u7684\u4e00\u4e2a\u6709\u7528\u56e0\u7d20\u3002\u6765\u81ea\u53d1\u5c04\u5668\u6fc0\u5149\u5668\uff08\u5176\u901a\u5e38\u662f\u53ef\u8c03\u8c10\u7684\u5e76\u4e14\u662f\u96c6\u6210\u7684\u53ef\u8c03\u8c10\u6fc0\u5149\u5668\u7ec4\u4ef6 &#8211; ITLA \u7684\u4e00\u90e8\u5206\uff09\u7684\u5149\u88ab\u5206\u6210\u4e24\u8def\uff0c\u7136\u540e\u6bcf\u8def\u88ab\u76f8\u4f4d\u8c03\u5236\uff08I-Q \u8c03\u5236\uff09\uff0c\u4e4b\u540e\u8fd9\u4e24\u8def\u53c8\u88ab\u91cd\u7ec4\u4e3a\u4e24\u4e2a\u5782\u76f4\u7684\u504f\u632f\u6001\u3002\u8fd9\u79cd\u5149\u5b50\u7ec4\u4ef6\u901a\u5e38\u662f\u9ad8\u5ea6\u96c6\u6210\u7684\uff0c\u5e76\u4e14\u53ef\u4ee5\u5229\u7528\u7845\u5149\u7535\u8bbe\u5907\u6765\u6ee1\u8db3\u53ef\u63d2\u62d4\u5149\u5b66\u5916\u5f62\u89c4\u683c\u7684\u5bc6\u5ea6\u3001\u6027\u80fd\u548c\u4ef7\u683c\u671f\u671b\u3002\u5728\u5927\u591a\u6570\u60c5\u51b5\u4e0b\uff0c\u56db\u4e2a I\/Q \u8c03\u5236\u5668\u5c06\u7531\u96c6\u6210\u5230 DSP \u4e2d\u7684\u9ad8\u6027\u80fd DAC \u9a71\u52a8\u3002\u8fd9\u5c06\u6267\u884c\u4e00\u7cfb\u5217\u7f16\u7801\u529f\u80fd\uff0c\u5305\u62ec\u6210\u5e27\u5668\u3001FEC \u548c\u7b26\u53f7\u6620\u5c04\u5668\uff0c\u5e76\u4e14\u901a\u5e38\u662f IC \u7684\u4e00\u90e8\u5206\uff0cIC \u8fd8\u6267\u884c\u76f8\u5e72\u63a5\u6536\u5668\u529f\u80fd\u3002<\/p><p>\u5149\u4fe1\u53f7\u73b0\u5728\u7ecf\u8fc7\u76f8\u4f4d\u3001\u504f\u632f\u548c\u5e45\u5ea6\u8c03\u5236\uff08\u4e0e\u7b80\u5355\u5ba2\u6237\u7aef\u63a5\u53e3\u4e0a\u7684\u7b80\u5355\u4ec5\u5e45\u5ea6\u8c03\u5236\u76f8\u53cd\uff09\uff0c\u5982\u679c\u53d7\u5230\u8870\u51cf\uff08\u635f\u8017\uff09\u3001\u8272\u6563\u548c\u504f\u632f\u8272\u6563\u4ee5\u53ca\u5176\u4ed6\u964d\u4f4e\u4f20\u8f93\u4fe1\u566a\u6bd4\uff08\u5149 SNR = OSNR\uff09\u7684\u5f71\u54cd\uff0c\u5b83\u5c06\u6cbf\u7740 \u5149\u7ea4\u94fe\u8def\u4f20\u8f93\u3002<\/p><p>\u5728\u63a5\u6536\u5668\u5904\uff0c\u8f93\u5165\u5149\u4fe1\u53f7\u88ab\u5206\u79bb\u6210\u82e5\u5e72\u5782\u76f4\u504f\u632f\u6001\uff0c\u7136\u540e\u88ab\u5206\u6210\u540c\u76f8\u548c\u6b63\u4ea4 (I &amp; Q) \u5206\u91cf\uff0c\u5728\u90a3\u91cc\u5b83\u88ab\u53e6\u4e00\u4e2a\uff08\u53ef\u8c03\u8c10\u7684\uff09\u6fc0\u5149\u5668\u5916\u5dee\uff0c\u4ee5\u4ea7\u751f\u7167\u5c04\u5728\u5149\u7535\u63a2\u6d4b\u5668\u4e0a\u7684\u57fa\u5e26\u4fe1\u53f7\u3002\u4ea7\u751f\u7684\u4fe1\u53f7\u7136\u540e\u88ab\u6570\u5b57\u5316\uff0c\u5e76\u7531 DSP \u7684\u63a5\u6536\u5668\u90e8\u5206\u5904\u7406\uff0c\u8fd9\u5c06\u5728\u4e0b\u9762\u8be6\u7ec6\u63cf\u8ff0\u3002<\/p><h1 class=\"wp-block-heading\">\u53ef\u63d2\u62d4\u76f8\u5e72\u5149\u5b66\u5668\u4ef6<\/h1><p>\u5927\u91cf\u7f51\u7edc\u8bbe\u5907\u90fd\u90e8\u7f72\u4e86\u53ef\u63d2\u62d4\u6a21\u5757\u63d2\u69fd \u2013 CFP2 \u7cfb\u5217\u5e7f\u6cdb\u90e8\u7f72\u5728\u7535\u4fe1\u5e94\u7528\u4e2d\uff0c\u5176\u4e2d QSFP \u7cfb\u5217\u5728\u4f01\u4e1a\u4e2d\u5360\u4e3b\u5bfc\u5730\u4f4d\u3002\u7531\u4e8e\u5bf9 QSFP-DD \u7684\u6539\u8fdb\uff0cOSFP \u5728\u67d0\u4e9b\u65b9\u9762\u4e5f\u83b7\u5f97\u4e86\u652f\u6301\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_05_500.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"500\" height=\"281\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_05_500.jpg\" alt=\"\" class=\"wp-image-3954\" srcset=\"http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_05_500.jpg 500w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_05_500-300x169.jpg 300w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_05_500-64x36.jpg 64w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><\/a><figcaption>\u56fe 5 &#8211; DCO QSFP-DD\u3001OSFP\u3001CFP2 \u7684\u53ef\u63d2\u62d4\u5916\u5f62\u89c4\u683c \u2013 \u7531 Acacia \u63d0\u4f9b<\/figcaption><\/figure><\/div><p>\u7528\u4e8e\u7ebf\u8def\u4fa7\u4f20\u8f93\u7684\u76f8\u5e72\u53ef\u63d2\u62d4\u6a21\u5757\u6bd4\u5178\u578b\u7684\u53ef\u63d2\u62d4\u5ba2\u6237\u7aef\u6a21\u5757\u7075\u6d3b\u5f97\u591a\u3002\u5728\u53ef\u63d2\u62d4\u5ba2\u6237\u7aef\u6a21\u5757\uff08\u4f8b\u5982 QSFP-DD\uff09\u4e2d\uff0c\u6211\u4eec\u901a\u5e38\u5728\u6a21\u5757\u7684\u5165\u53e3\u7aef\u548c\u51fa\u53e3\u7aef\u770b\u5230\u76f8\u540c\u7684\u4fe1\u53f7\u7ed3\u6784\u3002\u6210\u5e27\u548c\u7f16\u7801\u5728\u7535\u53e3\uff08\u4e3b\u673a\uff09\u548c\u5149\u53e3\uff08\u5ba2\u6237\u7aef\uff09\u4e0a\u662f\u4e00\u81f4\u7684\u3002\u76f8\u53cd\uff0c\u76f8\u5e72\u8f6c\u53d1\u5668\u53ef\u4ee5\u5728\u4e3b\u673a\u7aef\u652f\u6301\u90a3\u4e9b\u76f8\u540c\u7684\u7ed3\u6784\uff0c\u4f46\u662f\u5c06\u5b58\u5728\u975e\u5e38\u4e0d\u540c\u7684\u8f93\u51fa\u4fe1\u53f7\u7ed3\u6784\uff08\u4f8b\u5982\uff0c\u5728 ZR \u63a5\u53e3\u4e0a\u4f7f\u7528 C-FEC\uff08\u7ea7\u8054 FEC\uff09\u7684\u5355\u8f7d\u6ce2\u76f8\u5e72 DP-16QAM \u8c03\u5236\u4fe1\u53f7\uff09\u3002<\/p><p>\u5ba2\u6237\u7aef\u548c\u7ebf\u8def\u7aef\u7f16\u7801\u4e4b\u95f4\u7684\u8fd9\u79cd\u663e\u8457\u5dee\u5f02\u4f1a\u5f71\u54cd\u6d4b\u8bd5\u8986\u76d6\u7387\u3002\u5728\u76f8\u5e72 CFP2-DCO \u8f6c\u53d1\u5668\u4e2d\uff0c\u590d\u6742\u5ea6\u53ef\u80fd\u66f4\u9ad8\u3002\u5728\u7535\u4fe1\u5e94\u7528\u4e2d\uff0cCFP2-DCO \u6a21\u5757\u53ef\u4ee5\u540c\u65f6\u652f\u6301\u57fa\u4e8e\u4ee5\u592a\u7f51\u548c\u591a\u4e1a\u52a1\u7684\u5ba2\u6237\u7aef\u3002400GE\u30014x100GE \u5728\u4ee5\u592a\u7f51\u5e94\u7528\u4e2d\u5177\u6709\u5e7f\u6cdb\u7684\u5438\u5f15\u529b\uff0c\u800c OTN \u548c FlexO \u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u80fd\u529b\u6765\u6ee1\u8db3\u591a\u4e1a\u52a1\u9700\u6c42\uff0c\u8fd9\u662f\u7535\u4fe1\u884c\u4e1a\u7684\u91cd\u8981\u5e94\u7528\u3002<\/p><p>\u5e26\u5bbd\u8fd8\u53ef\u4ee5\u6839\u636e\u5ba2\u6237\u7aef\u7684\u52a8\u6001\u5e26\u5bbd\u9700\u6c42\u8fdb\u884c\u6269\u5c55\uff0c\u4f8b\u5982 n x100G \u4ee5\u592a\u7f51\u7684\u53ef\u6269\u5c55\u6027\uff0c\u53ef\u4ee5\u4ece 1 \u4e2a\u6269\u5c55\u5230 4 \u4e2a\u5ba2\u6237\u7aef\u6765\u586b\u5145 400G\u3002\u5bf9\u4e8e OTN \u4e3b\u673a\u4fe1\u53f7\uff0c\u6709\u8bb8\u591a\u9009\u62e9\uff1a\u5e26 NRZ \u7684 1 \u6216 2 * OTL4.4 \uff0c\u6216 PAM 4 \u7f16\u7801\u7684 4 * OTL4.2 \/ 4 * OTLC 2\uff0c400G\uff0c\u5177\u6709\u4e0d\u540c\u7684\u670d\u52a1\u80fd\u529b\u3002\u4e0a\u8ff0\u63a5\u53e3\u53cd\u6620\u4e86\u4ece\u65e7\u7ed3\u6784\u6216\u65e9\u671f 400G \u7ed3\u6784\u7684\u8fc1\u79fb\u8def\u5f84\u3002<\/p><p>\u672a\u6765\u7684 OTN \u63a5\u53e3\u53ef\u4ee5\u57fa\u4e8e FOIC\uff08FlexO \u63a5\u53e3\uff09\u6280\u672f\uff0c\u91c7\u7528 100G\u3001200G \u6216 400G \u53d8\u4f53\u3002\u4e3b\u673a FOIC \u63a5\u53e3\u53d7 KP4FEC \u4fdd\u62a4<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td>FOC \u6807\u51c6<\/td><td>\u63cf\u8ff0<\/td><\/tr><tr><td>FOIC 1.4<\/td><td>\u7531 4 \u6761 25G NRZ \u7535\u6c14\u901a\u9053\u627f\u8f7d 100G OTN<\/td><\/tr><tr><td>FOIC 1.2<\/td><td>\u7531 2 \u6761 28 Gbd PAM-4 \u7535\u6c14\u901a\u9053\u627f\u8f7d 100G OTN<\/td><\/tr><tr><td>FOIC 2.4<\/td><td>\u7531 4 \u6761 28 Gbd PAM-4 \u7535\u6c14\u901a\u9053\u627f\u8f7d 200 G OTN<\/td><\/tr><tr><td>FOIC 4.8<\/td><td>\u7531 8 \u6761 28 Gbd PAM-4 \u7535\u6c14\u901a\u9053\u627f\u8f7d 400G OTN<\/td><\/tr><\/tbody><\/table><\/figure><p>\u7ebf\u8def\u7aef\u7ed3\u6784\u57fa\u4e8e 100G\u3001200G \u548c 400G \u5b9e\u4f53\uff0c\u4f46\u4e0d\u518d\u5b58\u5728\u4e3b\u673a\u7aef\u770b\u5230\u7684\u6df7\u5408\u7ed3\u6784\u3002\u6839\u636e\u94fe\u8def\u53c2\u6570\uff08\u4f8b\u5982\u635f\u8017\u3001\u5149\u4fe1\u566a\u6bd4\u548c\u8272\u6563\uff09\uff0c\u53ef\u4ee5\u4f7f\u7528\u4e0d\u540c\u7684 FEC \u6765\u5339\u914d\u6240\u9700\u7684\u7f16\u7801\u589e\u76ca\u3001\u6027\u80fd\u7b49\u3002\u793a\u4f8b\u5305\u62ec CFEC\uff08\u4e32\u63a5 FEC\uff09\u3001OFEC\uff08\u5f00\u653e\u5f0f FEC\uff09\u4ee5\u53ca\u4e13\u6709 FEC\u3002<\/p><p>\u53ef\u63d2\u62d4\u6570\u5b57\u76f8\u5e72\u5149\u6a21\u5757 (DCO) \u9700\u8981\u5c06\u5927\u578b\u76f8\u5e72\u7ebf\u5361\u7684\u5927\u90e8\u5206\u529f\u80fd\u96c6\u6210\u5230\u7d27\u51d1\u7684\u53ef\u63d2\u62d4\u6a21\u5757\u4e2d\u3002\u5b83\u5305\u62ec\u4e00\u4e2a\u4f7f\u7528\u53ef\u8c03\u8c10\u6fc0\u5149\u5668\u7684\u9ad8\u5ea6\u96c6\u6210\u7684\u5149\u5b66\u76f8\u5e72\u63a5\u6536\u5668\u548c\u53d1\u5c04\u5668\uff0c\u5176\u4e2d\u8bb8\u591a\u5143\u4ef6\u901a\u5e38\u9700\u8981\u50cf\u7845\u5149\u7535\u8bbe\u5907\u8fd9\u6837\u7684\u5148\u8fdb\u6280\u672f\u3002\u76f8\u5e72\u5149\u5b66\u5668\u4ef6\u8fd8\u9700\u8981\u9ad8\u5ea6\u96c6\u6210\u7684 DSP \u6765\u63d0\u4f9b\u6570\u5b57\u76f8\u5e72\u63a5\u6536\u5668\u7684\u6240\u6709\u529f\u80fd\u3002\u63a5\u6536\u90e8\u5206\u7684\u6846\u56fe\u5982\u4e0b\u6240\u793a\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_06_800.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"285\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_06_800.jpg\" alt=\"\" class=\"wp-image-3955\" srcset=\"http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_06_800.jpg 800w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_06_800-300x107.jpg 300w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_06_800-768x274.jpg 768w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_06_800-600x214.jpg 600w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_06_800-64x23.jpg 64w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><figcaption>\u56fe 6 &#8211; DCO \u63a5\u6536\u90e8\u5206\u7684\u6846\u56fe<\/figcaption><\/figure><\/div><p><\/p><h1 class=\"wp-block-heading\">\u6a21\u62df\u5230\u6570\u5b57\u8f6c\u6362<\/h1><p>\u6765\u81ea\u63a5\u6536\u5668\u7684\u8f93\u5165\u5fc5\u987b\u4ee5\u5948\u594e\u65af\u7279\u9891\u7387\u6216\u9ad8\u4e8e\u5948\u594e\u65af\u7279\u9891\u7387\u8fdb\u884c\u6570\u5b57\u5316\uff0c\u7531\u4e8e\u5178\u578b\u7684\u76f8\u5e72\u7cfb\u7edf\u4f7f\u7528\u76f8\u4f4d\u548c\u504f\u632f\u5206\u96c6\uff0c\u56e0\u6b64\u60a8\u81f3\u5c11\u9700\u8981 4 \u4e2a\u975e\u5e38\u5feb\u7684 ADC\u3002\u5b83\u4eec\u9700\u8981\u5177\u6709\u5408\u9002\u7684\u5206\u8fa8\u7387\u548c\u7ebf\u6027\u5ea6\uff0c\u867d\u7136\u5b83\u4eec\u5c06\u7531\u5149\u7535\u4e8c\u6781\u7ba1\u548c\u8de8\u963b\u653e\u5927\u5668 (TIA) \u8fdb\u884c\u5904\u7406\uff0c\u4f46\u5b83\u4eec\u53ef\u80fd\u9700\u8981\u8f83\u5bbd\u7684\u52a8\u6001\u8303\u56f4\u3002<\/p><h1 class=\"wp-block-heading\">DSP \u529f\u80fd\u5757<\/h1><p>DSP \u76f8\u5e72\u63a5\u6536\u5668\u9700\u8981\u529f\u80fd\u5757\uff0c\u5176\u4e2d\u5305\u62ec\uff1a<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td>\u529f\u80fd<\/td><td>\u63cf\u8ff0<\/td><\/tr><tr><td>\u65f6\u949f\u6062\u590d<\/td><td>\u7528\u63a5\u6536\u7684\u6ce2\u7279\u7387\u8ddf\u8e2a\u7684\u6570\u5b57 CDR<\/td><\/tr><tr><td>\u8272\u5ea6\u8272\u6563<\/td><td>\u8865\u507f\u5149\u7ea4\u8272\u5ea6\u8272\u6563\uff0c\u5feb\u901f\u7f13\u51b2\u6df1\u5ea6\u4e0e\u9884\u671f\u94fe\u8def\u957f\u5ea6\u6210\u6b63\u6bd4<\/td><\/tr><tr><td>\u504f\u632f\u5206\u96c6<\/td><td>\u8ddf\u8e2a\u5feb\u901f\u53d8\u5316\u7684\u504f\u632f\u53d8\u5316\uff08\u591a krad\/\u79d2\uff09<\/td><\/tr><tr><td>\u8f7d\u6ce2\u76f8\u4f4d\u8ddf\u8e2a<\/td><td>\u8ddf\u8e2a\u8f93\u5165\u7801\u5143\u7684\u76f8\u4f4d\u5e76\u751f\u6210\u8bef\u5dee\u77e2\u91cf\u5e45\u5ea6 (EVM)<\/td><\/tr><tr><td>\u7801\u5143\u6062\u590d<\/td><td>\u6062\u590d\u539f\u59cb\u7801\u5143<\/td><\/tr><tr><td>FEC<\/td><td>\u53ef\u4ee5\u4f7f\u7528\u591a\u79cd\u7c7b\u578b\u7684 FEC \u6765\u7ea0\u6b63\u9519\u8bef\u7801\u5143<\/td><\/tr><tr><td>\u6210\u5e27\u5668\u548c\u89e3\u6620\u5c04\u5668<\/td><td>\u8be5\u6a21\u5757\u53ef\u4ee5\u5904\u7406\u6210\u5e27\u4fe1\u53f7\uff0c\u5982 OTN\u3001FlexO\u3001FlexE \u4ee5\u53ca\u4ee5\u592a\u7f51<\/td><\/tr><tr><td>SERDES<\/td><td>SERDES \u901a\u8fc7\u9ad8\u901f\u53ef\u63d2\u62d4\u63a5\u53e3\u8fde\u63a5\u5230\u4e3b\u673a\u3002\u8fd8\u9700\u8981\u6267\u884c\u7535\u6c14\u94fe\u8def\u5747\u8861<\/td><\/tr><\/tbody><\/table><figcaption>\u8868 2 &#8211; \u63a5\u6536\u5668\u7aef\u6240\u9700\u7684\u6570\u5b57\u76f8\u5e72\u6a21\u5757 DSP \u529f\u80fd<\/figcaption><\/figure><p>\u5f53\u7136\uff0c\u6240\u6709\u7684\u529f\u80fd\u90fd\u5fc5\u987b\u88ab\u63a7\u5236\u548c\u534f\u8c03\uff0c\u5e76\u88ab\u5b9e\u65f6\u8ddf\u8e2a\uff0c\u56e0\u6b64 DSP \u5177\u6709\u4e00\u4e2a\u5e9e\u5927\u800c\u590d\u6742\u7684\u63a7\u5236\u7ed3\u6784\uff0c\u901a\u5e38\u4e0e\u590d\u6742\u7684 DSP \u56fa\u4ef6\u4ea4\u7ec7\u5728\u4e00\u8d77\u3002DSP \u53ef\u80fd\u5fc5\u987b\u652f\u6301\u8bb8\u591a\u4e0d\u540c\u7684\u5de5\u4f5c\u6a21\u5f0f\u548c\u901f\u7387\uff0c\u53ef\u4ee5\u662f ZR \u6216 ZR+ \u7b49\u6807\u51c6\u548c\u7279\u6b8a\u4f9b\u5e94\u5546\u4e13\u6709\u6a21\u5f0f\u7684\u6df7\u5408\u3002\u4e0e\u5fc5\u987b\u5076\u5c14\u62a5\u544a\u51e0\u4e2a\u7b80\u5355\u94fe\u8def\u53c2\u6570\uff08\u5982\u4fe1\u53f7\u4e22\u5931 (LOS) \u6216\u5149\u529f\u7387\uff09\u7684\u7b80\u5355\u5ba2\u6237\u7aef\u6a21\u5757\u4e0d\u540c\uff0cDCO \u4e2d\u7684 DSP \u5fc5\u987b\u5b9e\u65f6\u62a5\u544a\u591a\u4e2a\u590d\u6742\u53c2\u6570\uff0c\u4ee5\u4fbf\u4e3b\u673a\u53ef\u4ee5\u7ba1\u7406\u548c\u8ddf\u8e2a\u94fe\u8def\u8fd0\u884c\u72b6\u51b5\u548c\u72b6\u6001\u3002\u5c11\u91cf\u53c2\u6570\u5305\u62ec\uff1a<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td>\u53c2\u6570<\/td><td>\u63cf\u8ff0<\/td><\/tr><tr><td>\u4fe1\u53f7\u4e22\u5931 (LOS)<\/td><td>\u7531\u4e8e\u8be5\u6a21\u5757\u53ef\u80fd\u5de5\u4f5c\u5728\u591a\u8f7d\u6ce2 DWDM \u7cfb\u7edf\u4e2d\uff0c\u7b80\u5355\u7684\u5149\u529f\u7387\u68c0\u6d4b\u5668\u4e0d\u80fd\u7528\u4e8e LOS\uff0c\u56e0\u6b64\u9700\u8981\u89e3\u6790\u548c\u68c0\u67e5\u6240\u9009\u62e9\u7684\u8f7d\u6ce2\u6ce2\u957f\u3002<\/td><\/tr><tr><td>\u5149\u529f\u7387<\/td><td>\u5728 DWDM \u7cfb\u7edf\u4e2d\uff0c\u5fc5\u987b\u89e3\u6790\u5e76\u6d4b\u91cf\u6240\u9009\u62e9\u7684\u8f7d\u6ce2\u6ce2\u957f\u3002<\/td><\/tr><tr><td>\u5de5\u4f5c\u6ce2\u957f<\/td><td>DWDM \u7cfb\u7edf\u53ef\u5728\u53ef\u8c03\u7684\u53d1\u5c04\/\u63a5\u6536\u6a21\u5f0f\u4e0b\u5de5\u4f5c<\/td><\/tr><tr><td>\u8272\u5ea6\u8272\u6563<\/td><td>\u8272\u5ea6\u8272\u6563\u6d4b\u91cf \u2013 \u901a\u5e38\u4e0e\u94fe\u8def\u957f\u5ea6\u6210\u6b63\u6bd4<\/td><\/tr><tr><td>\u504f\u632f\u8ddf\u8e2a<\/td><td>\u7531\u4e8e\u673a\u68b0\u6548\u5e94\uff0c\u504f\u632f\u6001\u53ef\u80fd\u4f1a\u8fc5\u901f\u6539\u53d8\uff08krad\/\u79d2\uff09<\/td><\/tr><tr><td>\u5149\u4fe1\u566a\u6bd4 (OSNR)<\/td><td>\u94fe\u8def\u8fd0\u884c\u72b6\u51b5\u54c1\u8d28\u56e0\u6570<\/td><\/tr><tr><td>\u8bef\u5dee\u77e2\u91cf\u5e45\u5ea6 (EVM)<\/td><td>IEEE \u548c OIF \u4f7f\u7528\u8bef\u5dee\u77e2\u91cf\u5e45\u5ea6\u4f5c\u4e3a\u54c1\u8d28\u56e0\u6570<\/td><\/tr><tr><td>FEC \u524d\u8bef\u7801\u7387<\/td><td>\u8ddf\u8e2a FEC \u4e4b\u524d\u7684\u8bef\u7801\u7387 \u2013 \u53ef\u7528\u4e8e\u89e6\u53d1\u94fe\u8def\u964d\u7ea7\u8b66\u62a5<\/td><\/tr><tr><td>SERDES \u72b6\u6001<\/td><td>\u76d1\u63a7 SERDES \u72b6\u6001\uff0c\u5305\u62ec\u5747\u8861\u5668\u3001\u9501\u5b9a\u72b6\u6001\uff08\u751a\u81f3\u773c\u56fe\u8ffd\u8e2a\u6210\u4e3a\u53ef\u80fd\uff09<\/td><\/tr><\/tbody><\/table><figcaption>\u8868 3 \u2013 DSP \u53ef\u62a5\u544a\u7684\u6a21\u5757\u53c2\u6570\u9009\u62e9<\/figcaption><\/figure><p>\u5176\u4ed6\u4e00\u822c\u53c2\u6570\u53ef\u4ee5\u5305\u62ec\u6a21\u5757\u72b6\u6001\u3001\u5de5\u4f5c\u6e29\u5ea6\u3001\u6fc0\u5149\u5668\u53c2\u6570\u3002\u7ba1\u7406\u3001\u63a7\u5236\u548c\u62a5\u544a\u8fd9\u4e9b\u53c2\u6570\uff08\u5176\u4e2d\u8bb8\u591a\u53c2\u6570\u5728\u5236\u9020\u8fc7\u7a0b\u4e2d\u9700\u8981\u5bf9\u6ce2\u957f\u548c\u6e29\u5ea6\u8fdb\u884c\u6821\u51c6\uff09\u9700\u8981 DSP\u3001\u6a21\u5757\u5fae\u63a7\u5236\u5668\u548c\u56fa\u4ef6\u4e0e\u4e3b\u673a\u63a5\u53e3\u4e4b\u95f4\u7684\u7d27\u5bc6\u8026\u5408\u3002<\/p><h1 class=\"wp-block-heading\">\u6a21\u5757\u7ba1\u7406\u548c\u63a7\u5236<\/h1><p>DCO \u6a21\u5757\u662f\u96c6\u6210\u5230\u53ef\u63d2\u62d4\u5149\u7ea4\u5916\u5f62\u89c4\u683c\u4e2d\u7684\u5b8c\u6574 DWDM \u7ebf\u5361\u3002\u4efb\u4f55\u529f\u80fd\u7684\u4e00\u4e2a\u5173\u952e\u65b9\u9762\u90fd\u662f\u7ba1\u7406\u754c\u9762\u3002\u591a\u5e74\u6765\uff0c\u4f7f\u7528\u57fa\u4e8e\u7b80\u5355\u5185\u5b58\u6620\u5c04\u534f\u8bae\uff08SFF 8636\u2075 \u5e7f\u6cdb\u7528\u4e8e\u50cf QSFP28 \u8fd9\u6837\u7684 4 \u901a\u9053\u6a21\u5757\uff09\u7684\u53cc\u7ebf\u63a5\u53e3\uff08\u5982 I\u00b2C\uff09\u7684\u5ba2\u6237\u7aef\u5149\u7ea4\u4e0d\u65ad\u53d1\u5c55\uff0c\u4f46\u968f\u7740 400G \u7c7b\u5ba2\u6237\u7aef\u6a21\u5757\u7684\u51fa\u73b0\uff0c\u65e7\u5f0f\u89e3\u51b3\u65b9\u6848\u663e\u7136\u65e0\u6cd5\u6ee1\u8db3\u73b0\u4ee3\u5e94\u7528\u7684\u8981\u6c42\u3002\u6574\u4e2a\u884c\u4e1a\u901a\u529b\u5408\u4f5c\uff0c\u4fc3\u6210\u4e86 CMIS 4.0\u2076 \u7684\u8bde\u751f\uff0c\u5b83\u53ef\u4ee5\u4f5c\u4e3a 400G \u5ba2\u6237\u7aef\u5149\u5b66\u5668\u4ef6\uff08\u4f8b\u5982 QSFP-DD\uff09\u7684\u7ba1\u7406\u754c\u9762\u3002DCO \u7684\u7ba1\u7406\u6bd4\u5ba2\u6237\u7aef\u5149\u5b66\u5668\u4ef6\u590d\u6742\u5f97\u591a\uff0c\u4e1a\u754c\u6b63\u5728\u5bfb\u627e\u4e0d\u540c\u7684\u9014\u5f84\u6765\u5b9e\u73b0\u76f8\u5e72\u6a21\u5757\u7ba1\u7406\u3002OIF\u2077 C-CMIS \u91c7\u53d6\u7684\u4e00\u79cd\u65b9\u6cd5\u662f\u5728 CMIS 4.0 \u6846\u67b6\u4e0a\u6784\u5efa\uff0c\u5e76\u4e3a\u76f8\u5e72\u5e94\u7528\u6dfb\u52a0\u6269\u5c55\uff0c\u8fd9\u662f QSFP-DD \u548c OSFP \u6a21\u5757\u7684\u53ef\u80fd\u8def\u5f84\u3002\u5b83\u4eec\u5f88\u53ef\u80fd\u5728\u9700\u8981\u652f\u6301 CMIS 4.0 \u5806\u6808\u7684\u4e3b\u673a\u4e2d\u4f7f\u7528\uff0c\u56e0\u4e3a\u8fd9\u662f QSFP-DD \u548c OSFP \u5ba2\u6237\u7aef\u5c06\u4f7f\u7528\u7684\u3002\u53e6\u4e00\u79cd\u65b9\u6cd5\u57fa\u4e8e CFP MDIO \u6982\u5ff5\uff0c\u4f46\u9488\u5bf9 DCO\u2078 \u5f97\u5230\u4e86\u663e\u8457\u589e\u5f3a\uff0c\u8be5\u65b9\u6cd5\u57fa\u4e8e\u7528\u4e8e100G \u548c 200G \u5e94\u7528\u7684\u7b2c\u4e00\u4ee3\u548c\u7b2c\u4e8c\u4ee3 CFP \u548c CFP2 DCO \u6a21\u5757\u3002<\/p><h1 class=\"wp-block-heading\">\u4ea7\u54c1\u751f\u547d\u5468\u671f\u4e2d\u7684\u6d4b\u8bd5\u9700\u6c42<\/h1><p>\u5728\u4efb\u4f55\u4ea7\u54c1\u751f\u547d\u5468\u671f\u4e2d\uff0c\u90fd\u6709\u4e00\u7cfb\u5217\u7684\u6d4b\u8bd5\u548c\u6d4b\u91cf\u9700\u6c42\uff0c\u8fd9\u4e9b\u9700\u6c42\u5728\u5e7f\u5ea6\u3001\u6df1\u5ea6\u548c\u590d\u6742\u6027\u4e0a\u53ef\u80fd\u4f1a\u6709\u6240\u4e0d\u540c\u3002VIAVI ONT \u4ea7\u54c1\u7ebf\u65e8\u5728\u6839\u636e\u4ea7\u54c1\u5f00\u53d1\u3001\u9a8c\u8bc1\u3001\u751f\u4ea7\u548c\u90e8\u7f72\u751f\u547d\u5468\u671f\u7684\u6bcf\u4e2a\u9636\u6bb5\u7684\u9700\u6c42\u8fdb\u884c\u6269\u5c55\u3002<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td>\u6a21\u5757\u751f\u547d\u5468\u671f\u9636\u6bb5<\/td><td>\u5e94\u7528\u548c\u793a\u4f8b<\/td><\/tr><tr><td>\u6280\u672f\u4e0e\u7ec4\u4ef6\u8bc4\u4f30<\/td><td>DSP\u3001ROSA\u3001TOSA \u7684\u8bc4\u4f30<\/td><\/tr><tr><td>\u6a21\u5757\u786c\u4ef6\u5f00\u53d1<\/td><td>\u96c6\u6210\u786c\u4ef6\u3001\u4fe1\u53f7\u5b8c\u6574\u6027\u3001\u6570\u636e\u8def\u5f84\u8fde\u63a5<\/td><\/tr><tr><td>\u56fa\u4ef6\u548c\u8f6f\u4ef6\u5f00\u53d1<\/td><td>\u6a21\u5757\u56fa\u4ef6\u548c\u8f6f\u4ef6\u96c6\u6210\u3001DSP \u529f\u80fd\u9a8c\u8bc1\u3001\u6a21\u5757\u547d\u4ee4\u63a5\u53e3<\/td><\/tr><tr><td>\u6807\u51c6\u9a8c\u8bc1<\/td><td>\u9a8c\u8bc1\u4e3b\u673a\u3001\u5149\u7535\u8bbe\u5907\u548c\u547d\u4ee4\u63a5\u53e3\u3001\u6807\u51c6\u4ee5\u53ca MSA \u5408\u89c4\u6027<\/td><\/tr><tr><td>\u751f\u4ea7<\/td><td>\u529f\u80fd\u6d4b\u8bd5\u548c\u6821\u51c6\u4ee5\u53ca\u541e\u5410\u91cf\u548c\u6d4b\u8bd5\u53f0\u5bc6\u5ea6\u8981\u6c42<\/td><\/tr><tr><td>\u6a21\u5757\u548c\u4f9b\u5e94\u5546\u9009\u62e9<\/td><td>NEMS \u6839\u636e\u6807\u51c6\u548c\u8be2\u4ef7\u8bc4\u4f30\u548c\u6d4b\u8bd5\u4f9b\u5e94\u5546\u9009\u62e9\u6a21\u5757<\/td><\/tr><tr><td>\u6a21\u5757\u96c6\u6210<\/td><td>\u6a21\u5757\u786c\u4ef6\u548c\u56fa\u4ef6\u4e0e\u4e3b\u673a\u96c6\u6210\uff0c\u5305\u62ec\u8bc4\u8bba\u63a5\u53e3\u7b49<\/td><\/tr><\/tbody><\/table><figcaption>\u8868 4 &#8211; \u6a21\u5757\u751f\u547d\u5468\u671f\u6d4b\u8bd5\u9700\u6c42\u6c47\u603b<\/figcaption><\/figure><p><\/p><h1 class=\"wp-block-heading\">\u7ec4\u4ef6\u548c DSP \u8bc4\u4f30<\/h1><p>\u5f00\u53d1\u5f3a\u5927\u53ef\u9760\u7684\u4ea7\u54c1\u5e76\u52a0\u901f\u5176\u4e0a\u5e02\u7684\u4e00\u4e2a\u5173\u952e\u65b9\u9762\u662f\u4ed4\u7ec6\u9009\u62e9\u7ec4\u4ef6\u3002\u5373\u4f7f\u5728\u6a21\u5757 PCB \u5e03\u5c40\u5f00\u59cb\u4e4b\u524d\uff0c\u8bc4\u4f30 DSP \u529f\u80fd\u7684\u91cd\u8981\u5de5\u4f5c\u4e5f\u53ef\u4ee5\u901a\u8fc7 DSP \u8bc4\u4f30\u677f\u548c\u4e0e\u9002\u5f53\u7684\u7535\u6c14\u9002\u914d\u5668\u76f8\u8fde\u7684 ONT \u6d4b\u8bd5\u88c5\u7f6e\u7684\u7ec4\u5408\u6765\u5b8c\u6210\u3002\u8fd9\u6837\u7684\u8bbe\u7f6e\u53ef\u4ee5\u5145\u5206\u5229\u7528 DSP \u529f\u80fd\u548c\u6d41\u91cf\u541e\u5410\u91cf\u3001\u6210\u5e27\u5668\uff0c\u4ee5\u53ca\u8981\u4e0e PCB \u8bbe\u8ba1\u548c\u6a21\u5757\u7684\u673a\u68b0\u5e03\u5c40\u5e76\u884c\u5f00\u53d1\u548c\u8c03\u8bd5\u7684 SERDES \u786c\u4ef6\u548c\u56fa\u4ef6\u3002\u8fd9\u79cd\u65b9\u6cd5\u53ef\u4ee5\u8282\u7701\u51e0\u4e2a\u6708\u7684\u5f00\u53d1\u5468\u671f\uff0c\u5e76\u5141\u8bb8\u66f4\u5168\u9762\u7684\u8bbe\u8ba1\u548c DSP \u8bc4\u4f30\uff0c\u8fd9\u662f\u65e0\u6cd5\u901a\u8fc7\u6a21\u62df\u5b9e\u73b0\u7684\u3002\u8fd8\u53ef\u4ee5\u5bf9\u5149\u7535\u8bbe\u5907\u548c DSP \u7684\u517c\u5bb9\u6027\u8fdb\u884c\u8bc4\u4f30\uff0c\u5e76\u5bf9\u6d4b\u8bd5\u5149\u7ea4\u8fdb\u884c\u5b9e\u9645\u6d4b\u91cf\uff0c\u4ee5\u786e\u5b9a OSNR \u548c\u8bef\u5dee\u77e2\u91cf\u5e45\u5ea6\u7b49\u7cfb\u7edf\u6027\u80fd\u53c2\u6570\u7684\u57fa\u51c6\u3002<\/p><h1 class=\"wp-block-heading\">\u7814\u53d1<\/h1><p>\u5728\u8fd9\u4e2a\u9636\u6bb5\uff0c\u5df2\u7ecf\u9009\u62e9\u4e86\u7ec4\u4ef6\uff0c\u5e76\u5bf9\u8bbe\u8ba1\u6982\u5ff5\u8fdb\u884c\u4e86\u5ba1\u67e5\u3002\u4ece\u4fe1\u53f7\u5b8c\u6574\u6027\u548c\u6563\u70ed\u89d2\u5ea6\u6765\u770b\uff0c\u5e03\u5c40\u9a8c\u8bc1\u90fd\u81f3\u5173\u91cd\u8981\u3002\u6a21\u5757\u56fa\u4ef6\u9700\u8981\u6253\u5f00\u624d\u80fd\u542f\u52a8 DSP\uff0c\u5e76\u8bbe\u7f6e\u6a21\u5f0f\u548c\u4fe1\u53f7\u8def\u5f84\u3002\u7814\u53d1\u9636\u6bb5\u7684 ONT \u65b9\u6cd5\u662f\u72ec\u7279\u548c\u5168\u9762\u7684\u3002\u5b83\u5141\u8bb8\u6d4b\u8bd5\u3001\u5f3a\u8c03\u548c\u9a8c\u8bc1\u9ad8\u901f\u201c\u7269\u7406\u5c42\u201d\uff0c\u5305\u62ec\u4f4e\u5c42\u201c\u534f\u8bae\u201d\uff0c\u5982\u7535\u5747\u8861\u3002ONT \u652f\u6301\u5168\u65b9\u4f4d\u7684\u6d41\u91cf\u9700\u6c42 \u2013 \u4ece\u5e2e\u52a9\u68c0\u67e5\u4fe1\u53f7\u5b8c\u6574\u6027\u548c SERDES \u7684\u672a\u6210\u5e27\u4fe1\u53f7\u5230\u5141\u8bb8\u5168\u4fe1\u53f7\u8def\u5f84\u9a8c\u8bc1\u7684\u5168\u6210\u5e27\u4ee5\u592a\u7f51\u548c OTN \u4fe1\u53f7\u3002\u6240\u6709\u8fd9\u4e9b\u90fd\u653e\u5728\u4e00\u4e2a\u6ee1\u8db3\u7535\u6e90\u548c\u51b7\u5374\u8981\u6c42\u7684\u201c\u6d4b\u8bd5\u69fd\u201d\u4e2d\u3002\u6b64\u5916\uff0c\u5b83\u8fd8\u901a\u8fc7\u6a21\u5757\u547d\u4ee4\u754c\u9762\u63d0\u4f9b\u5168\u9762\u7684\u6d4b\u8bd5\u548c\u9a8c\u8bc1\u529f\u80fd\uff0c\u5e76\u901a\u8fc7\u7ba1\u7406\u754c\u9762\u5b9e\u73b0\u7269\u7406\u5c42\u548c\u534f\u8bae\u4e8b\u4ef6\u4ee5\u53ca\u547d\u4ee4\u548c\u54cd\u5e94\u4e4b\u95f4\u7684\u7d27\u5bc6\u540c\u6b65\u548c\u8ddf\u8e2a\u3002<\/p><p>\u5728\u7814\u53d1\u9636\u6bb5\uff0c\u9700\u8981\u5f00\u53d1\u3001\u8c03\u8bd5\u548c\u9a8c\u8bc1\u56db\u4e2a\u4e3b\u8981\u4e3b\u9898\uff1a<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td>\u4e3b\u9898<\/td><td>\u6d4b\u8bd5\u6d3b\u52a8<\/td><\/tr><tr><td>\u4e3b\u673a\u63a5\u53e3 \u2013 \u7269\u7406\u5c42<\/td><td>SERDES \u548c\u5747\u8861\u5668\u7684\u9a8c\u8bc1\u548c\u529f\u80fd\u3001\u4fe1\u53f7\u5b8c\u6574\u6027\u3001\u52a8\u6001\u548c\u65f6\u949f\u3001\u504f\u5dee\u5bb9\u5dee\u3002\u80fd\u591f\u652f\u6301\u5177\u6709\u4e0d\u540c\u65f6\u949f\u57df\u7684\u9ad8\u7ea7 PHY \u6a21\u5f0f\uff0c\u4f8b\u5982 4x100G\u3002\u4e3b\u673a\u63a5\u53e3\u6291\u5236\u548c\u6062\u590d\u3002ONT \u5e94\u7528\u5305\u62ec\u9ad8\u7ea7\u9519\u8bef\u5206\u6790\uff08PAM-4 \u7ea7\u522b\u8f6c\u6362\u548c\u7a81\u53d1\u5206\u6790\uff09\u3001\u52a8\u6001\u504f\u5dee\u63d2\u5165\u3001\u6bd4\u7279\u6ed1\u52a8\u5206\u6790\u548c\u65f6\u949f\u53d8\u5316\u3002<\/td><\/tr><tr><td>\u4e3b\u673a\u63a5\u53e3 \u2013 \u534f\u8bae<\/td><td>\u6570\u636e\u8def\u5f84\u5b8c\u6574\u6027\u3001\u6210\u5e27\u5668\u7684\u6b63\u786e\u529f\u80fd\u3001FEC \u7b49\u3002\u7ea0\u6b63\u8b66\u62a5\u548c\u9519\u8bef\u884c\u4e3a\u3002\u4e0e\u4ee5\u592a\u7f51\u548c\u591a\u4e1a\u52a1\uff08OTN\u3001FlexO \u7b49\uff09\u517c\u5bb9\u3002ONT \u5e94\u7528\u5305\u62ec\u5bf9\u51c6\u6807\u8bb0\u548c FEC \u5206\u6790\uff0c\u4ee5\u53ca\u5168\u9762\u7684\u4ee5\u592a\u7f51\u3001OTN \u548c FlexO \u6d4b\u8bd5\u3002<\/td><\/tr><tr><td>\u547d\u4ee4\u63a5\u53e3<\/td><td>\u6a21\u5757\u7ba1\u7406\u754c\u9762\u529f\u80fd\u6b63\u786e\uff0cDSP \u64cd\u4f5c\u548c\u6d41\u91cf\u6a21\u5f0f\u8bbe\u7f6e\u6b63\u786e\uff08\u4e0e\u534f\u8bae\u4e00\u8d77\u9a8c\u8bc1\uff09\u3002\u80fd\u591f\u8bfb\u51fa\u5173\u952e\u6027\u80fd\u548c\u5149\u5b50\u6307\u6807\u3002\u6b63\u786e\u3001\u53ca\u65f6\u5730\u6307\u793a\u6545\u969c\u548c\u8b66\u62a5\u6761\u4ef6\uff08LOS\u3001\u9891\u7387\u8303\u56f4\u3001FEC \u7b49\uff09\u3002ONT \u63d0\u4f9b\u9769\u547d\u6027\u7684\u6a21\u5757\u8c03\u8bd5\u5de5\u5177\uff0c\u5982\u8f6c\u53d1\u5668\u63a7\u5236\u73af\u5883\u3002<\/td><\/tr><tr><td>\u5149\u5b50\u6027\u80fd<\/td><td>\u94fe\u8def\u5728\u8bf8\u5982 OSNR\u3001\u5149\u5e26\u5bbd\u6574\u5f62\u3001LOS\u3001\u504f\u632f\u6001\u7b49\u635f\u4f24\u4e0b\u7684\u884c\u4e3a\u3002\u7ebf\u6027\u5ea6\u3001\u9891\u7387\u8ddf\u8e2a\u3001\u6fc0\u5149\u8c03\u8c10\u8303\u56f4\u3001\u63a5\u6536\u5668 AGC\u3002VIAVI MAP-300 \u4e3a\u8fd9\u4e00\u9886\u57df\u63d0\u4f9b\u4e86\u4e00\u5957\u5168\u9762\u7684\u5149\u5b50\u5de5\u5177\u3002<\/td><\/tr><\/tbody><\/table><\/figure><p>\u53c2\u8003\u4e0b\u9762\u7684 DCO \u529f\u80fd\u6846\u56fe\u5f88\u6709\u7528\u3002\u5728\u7814\u53d1\u4e2d\u9700\u8981\u6d4b\u8bd5\u7684\u5173\u952e\u8981\u7d20\u663e\u800c\u6613\u89c1\u3002\u4e3a\u786e\u4fdd\u5b8c\u5168\u7aef\u5230\u7aef\u6d4b\u8bd5\uff0c\u5fc5\u987b\u4f7f\u7528\u6210\u5e27\u6d41\u91cf\u3002\u57fa\u672c\u7684\u672a\u6210\u5e27\u6d4b\u8bd5\u4eea\u53ea\u80fd\u771f\u6b63\u9a8c\u8bc1 SERDES \u7684\u57fa\u672c\u8fde\u901a\u6027\u3002\u5b83\u65e0\u6cd5\u67e5\u770b DSP \u5185\u90e8\u5e76\u9a8c\u8bc1\u5305\u62ec FEC\u3001\u6210\u5e27\u5668\u548c\u7f13\u51b2\u5668\u5728\u5185\u7684\u590d\u6742\u529f\u80fd\u3002\u5fc5\u987b\u4f7f\u7528\u6210\u5e27\u4fe1\u53f7\uff08\u5982\u9002\u7528\uff0c\u5305\u62ec OTN \u548c FlexO\uff09\u5b8c\u6210\u6570\u636e\u8def\u5f84\u8986\u76d6\u3002<\/p><p>SERDES \u5757\u662f\u4e00\u4e2a\u5143\u4ef6\uff0c\u5728\u8fd9\u4e2a\u5143\u4ef6\u4e2d\uff0c\u5e94\u529b\u9ad8\u4e8e\u9891\u7387\u3001\u76f8\u4f4d\u548c\u504f\u5dee\u7684\u6b63\u5e38\u503c\u662f\u5f88\u91cd\u8981\u7684\u3002\u50cf SERDES \u8fd9\u6837\u7684\u6a21\u5757\u529f\u80fd\u5143\u4ef6\u5fc5\u987b\u4ece\u4fe1\u53f7\u548c\u6570\u636e\u9891\u7387\u8df3\u8dc3\u548c\u77ac\u53d8\uff08\u7531\u65f6\u949f\u6e90\u5207\u6362\u5f15\u8d77\uff09\u548c\u504f\u5dee\uff08\u7531\u65f6\u95f4\u548c\u6e29\u5ea6\u5f15\u8d77\uff09\u7b49\u7834\u574f\u6027\u4e8b\u4ef6\u4e2d\u6062\u590d\u3002\u5f53\u8d85\u51fa\u6807\u51c6\u9650\u5236\u65f6\uff0c\u91cd\u8981\u7684\u662f\u786c\u4ef6\u548c\u76f8\u5173\u7684\u8f6f\u4ef6\u6b63\u786e\u5730\u62a5\u544a\u7269\u7406\u60c5\u51b5\uff08\u9891\u7387\u6216\u504f\u5dee\u8d85\u51fa\u8303\u56f4\uff09\uff0c\u800c\u4e0d\u4ec5\u4ec5\u662f\u6545\u969c\u3002\u540c\u6837\u91cd\u8981\u7684\u662f\uff0c\u5f53\u65f6\u949f\u9891\u7387\u6062\u590d\u5230\u6b63\u786e\u8303\u56f4\u65f6\uff0c\u6a21\u5757\u53ef\u4ee5\u201c\u81ea\u6211\u6062\u590d\u201d\uff0c\u5e76\u901a\u8fc7\u547d\u4ee4\u63a5\u53e3\u53d1\u51fa\u4fe1\u53f7\u3002<\/p><p>\u5f53\u529f\u80fd\u5757\u53d1\u751f\u6545\u969c\u65f6\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528\u8bf8\u5982\u9891\u7387\u503e\u659c\u548c\u52a8\u6001\u504f\u5dee\u4e4b\u7c7b\u7684\u5e94\u529b\u6765\u786e\u5b9a\u8bef\u5dee\u5206\u5e03\u3002\u8fd9\u65b9\u9762\u7684\u4e00\u4e2a\u5f88\u597d\u7684\u4f8b\u5b50\u662f\u5728 SERDES \u5757\u4e2d\u5bfc\u81f4\u6bd4\u7279\u6ed1\u52a8\u7684\u8fc7\u5ea6\u52a8\u6001\u504f\u5dee\u3002\u62e5\u6709\u80fd\u591f\u533a\u5206\u9519\u8bef\u7a81\u53d1\u548c\u6bd4\u7279\u6ed1\u52a8\u7684\u6d4b\u8bd5\u96c6\u53ef\u4ee5\u5e2e\u52a9\u6df1\u5165\u4e86\u89e3\u5e94\u529b\u6761\u4ef6\u4e0b\u7684\u51c6\u786e\u6545\u969c\u6a21\u5f0f\u3002<\/p><p>\u50cf FEC \u548c\u6210\u5e27\u5668\u8fd9\u6837\u7684\u5927\u578b IP \u5757\u4f9d\u8d56\u4e8e\u6d41\u91cf\u7684\u6210\u5e27\u3002\u64cd\u7eb5\u548c\u9519\u8bef\u5904\u7406\u6210\u5e27\u6d41\u91cf\u7684\u80fd\u529b\u5bf9\u4e8e\u9a8c\u8bc1\u8fd9\u4e9b IP \u5757\u975e\u5e38\u91cd\u8981\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_07_800.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"379\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_07_800.jpg\" alt=\"\" class=\"wp-image-3956\" srcset=\"http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_07_800.jpg 800w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_07_800-300x142.jpg 300w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_07_800-768x364.jpg 768w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_07_800-600x284.jpg 600w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_07_800-64x30.jpg 64w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><figcaption>\u56fe 7 \u2013 DCO \u529f\u80fd\u5757<\/figcaption><\/figure><\/div><p><\/p><h1 class=\"wp-block-heading\">\u7269\u7406\u5c42\u548c SERDES \u6d4b\u8bd5\u793a\u4f8b<\/h1><p>SERDES \u662f\u4efb\u4f55 DCO \u6a21\u5757\u7684\u5173\u952e\u90e8\u4ef6\u3002\u6ca1\u6709\u53ef\u9760\u3001\u7b26\u5408\u6807\u51c6\u7684\u9ad8\u901f\u6570\u636e\u63a5\u53e3\uff0c\u4ec0\u4e48\u90fd\u4e0d\u80fd\u8fd0\u884c\u3002\u6211\u4eec\u5c06\u68c0\u67e5\u5728\u4efb\u4f55 DCO \u4e3b\u673a\u63a5\u53e3\u4e0a\u8fd0\u884c\u7684\u51e0\u4e2a\u793a\u4f8b\u6d4b\u8bd5\uff0c\u4ee5\u9a8c\u8bc1 SERDES\u3002<\/p><h1 class=\"wp-block-heading\">\u52a8\u6001\u504f\u5dee<\/h1><p>\u6a21\u5757\u6570\u636e\u63a5\u53e3\u4f9d\u8d56\u4e8e\u4f7f\u7528 PAM-4 \u7535\u6c14\u8c03\u5236\u5728 28 Gbps \u5904\u8fd0\u884c\u7684\u5e76\u884c\u9ad8\u901f\u63a5\u53e3\uff088 \u4e2a\u63a5\u6536\u548c\u53d1\u5c04\u901a\u9053\uff09\u3002\u4e0e\u4efb\u4f55\u5e76\u884c\u63a5\u53e3\u4e00\u6837\uff0c\u6211\u4eec\u53ef\u80fd\u4f1a\u5728\u901a\u9053\u4e4b\u95f4\u51fa\u73b0\u504f\u5dee\uff0c\u8fd9\u79cd\u504f\u5dee\u53ef\u80fd\u4f1a\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\u800c\u53d8\u5316\u3002IEEE \u5217\u51fa\u4e86\u6b64\u63a5\u53e3\u7684\u504f\u5dee\u5bb9\u5dee\uff0c\u56e0\u6b64\u504f\u5dee\u53d8\u5316\u9002\u7528\u4e8e\u6b64\u6807\u51c6\u9a8c\u8bc1\u3002\u5b83\u8fd8\u53ef\u7528\u4e8e\u9a8c\u8bc1\u4fe1\u53f7\u5b8c\u6574\u6027\u3002\u6539\u53d8\u901a\u9053\u95f4\u504f\u5dee\u5c06\u6539\u53d8\u7535\u5e73\u4e4b\u95f4\u7684\u4e32\u6270\uff0c\u56e0\u6b64\u9519\u8bef\u7387\u968f\u504f\u5dee\u7684\u4efb\u4f55\u53d8\u5316\u53ef\u80fd\u6307\u793a\u4e32\u6270\u88d5\u5ea6\u95ee\u9898\u3002\u52a8\u6001\u504f\u5dee\u7684\u53e6\u4e00\u4e2a\u5173\u952e\u7528\u9014\u662f\u5728\u504f\u5dee\u8fc7\u5927\u65f6\u786e\u5b9a SERDES \u7684\u6545\u969c\u6a21\u5f0f\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_08.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_08.jpg\" alt=\"\" class=\"wp-image-3957\" width=\"743\" height=\"494\" srcset=\"http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_08.jpg 991w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_08-300x199.jpg 300w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_08-768x510.jpg 768w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_08-570x380.jpg 570w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_08-380x254.jpg 380w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_08-285x190.jpg 285w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_08-600x398.jpg 600w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_08-64x42.jpg 64w\" sizes=\"(max-width: 743px) 100vw, 743px\" \/><\/a><figcaption>\u56fe 8 \u2013 \u5728 ONT GUI \u4e0a\u8bbe\u7f6e\u52a8\u6001\u504f\u5dee<\/figcaption><\/figure><\/div><p>\u8fc7\u5ea6\u504f\u5dee\u53ef\u80fd\u5bfc\u81f4\u7684\u4e00\u4e2a\u95ee\u9898\u662f SERDES \u7f13\u51b2\u533a\u4e2d\u7684\u6bd4\u7279\u6ed1\u52a8\uff0c\u5982\u679c\u6ca1\u6709\u6b63\u786e\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u8be5\u95ee\u9898\u6781\u96be\u6392\u9664\u3002\u5bf9\u4e8e\u5927\u591a\u6570\u6d4b\u8bd5\u96c6\u6765\u8bf4\uff0c\u5b83\u88ab\u62a5\u544a\u4e3a\u9519\u8bef\u7a81\u53d1\uff0c\u56e0\u4e3a\u5b83\u4eec\u4e0d\u80fd\u8bc6\u522b\u6ed1\u52a8\u3002ONT \u53ef\u4ee5\u901a\u8fc7\u5bf9\u6210\u5e27\u6d41\u91cf\u8fd0\u884c\u52a8\u6001\u504f\u5dee\u6d4b\u8bd5\u6765\u5f3a\u8c03\u8fd9\u4e00\u70b9\uff0c\u7136\u540e\u8ddf\u8e2a SERDES \u8f93\u51fa\u4e0a\u770b\u5230\u7684\u9519\u8bef\u914d\u7f6e\u6587\u4ef6\u3002ONT \u53ef\u4ee5\u68c0\u6d4b\u5b9e\u65f6\u4ee5\u592a\u7f51\u6d41\u91cf\u7684\u6bd4\u7279\u6ed1\u52a8\u3002\u5f53\u8d85\u8fc7 SERDES\uff08\u6a21\u5757\u8f93\u5165\uff09\u5165\u53e3\u5904\u7684\u504f\u5dee\u9650\u5236\u65f6\uff0c\u53ef\u4ee5\u89c2\u5bdf\u5230\u6545\u969c\u6a21\u5f0f\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_09.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_09.jpg\" alt=\"\" class=\"wp-image-3958\" width=\"737\" height=\"489\" srcset=\"http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_09.jpg 982w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_09-300x199.jpg 300w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_09-768x510.jpg 768w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_09-285x190.jpg 285w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_09-600x398.jpg 600w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_09-64x42.jpg 64w\" sizes=\"(max-width: 737px) 100vw, 737px\" \/><\/a><figcaption>\u56fe 9 \u2013 ONT \u6bd4\u7279\u6ed1\u52a8\u68c0\u6d4b\u5e94\u7528<\/figcaption><\/figure><\/div><p>\u9664\u4e86\u8ddf\u8e2a\u6bd4\u7279\u6ed1\u52a8\u7b49\u5927\u7684\u7834\u574f\u6027\u9519\u8bef\u5916\uff0cONT \u8fd8\u53ef\u4ee5\u8ddf\u8e2a\u5bf9 PCS \u5c42\u7684\u5f71\u54cd\uff0c\u5176\u4e2d\u5305\u62ec\u901a\u9053\u5bf9\u9f50\u6807\u8bb0\u548c FEC \u7b49\u5173\u952e\u5143\u7d20\u3002\u5728\u6545\u969c\u6761\u4ef6\u4e0b\uff0c\u6b63\u786e\u4e00\u81f4\u5730\u8ddf\u8e2a\u4ee5\u592a\u7f51\u8b66\u62a5\u548c\u9519\u8bef\u81f3\u5173\u91cd\u8981\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_10.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_10.jpg\" alt=\"\" class=\"wp-image-3959\" width=\"737\" height=\"489\" srcset=\"http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_10.jpg 983w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_10-300x199.jpg 300w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_10-768x509.jpg 768w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_10-285x190.jpg 285w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_10-600x398.jpg 600w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_10-64x42.jpg 64w\" sizes=\"(max-width: 737px) 100vw, 737px\" \/><\/a><figcaption>\u56fe 10 \u2013 \u5168\u9762\u7684 FEC \u6982\u89c8\u5bf9\u4e8e\u4e86\u89e3\u94fe\u8def\u9519\u8bef\u884c\u4e3a\u81f3\u5173\u91cd\u8981\u3002<\/figcaption><\/figure><\/div><p><strong>\u6a21\u5757\u7ba1\u7406<\/strong><\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_11.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_11.jpg\" alt=\"\" class=\"wp-image-3960\" width=\"737\" height=\"489\" srcset=\"http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_11.jpg 982w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_11-300x199.jpg 300w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_11-768x510.jpg 768w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_11-285x190.jpg 285w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_11-600x398.jpg 600w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_11-64x42.jpg 64w\" sizes=\"(max-width: 737px) 100vw, 737px\" \/><\/a><figcaption>\u56fe 11 \u2013 ONT \u8f6c\u53d1\u5668\u72b6\u6001\u6982\u89c8\u9875\u9762<\/figcaption><\/figure><\/div><p>\u76f8\u5e72\u53ef\u63d2\u62d4\u6a21\u5757\u7684\u7ba1\u7406\u6781\u5176\u590d\u6742\u3002\u5bf9\u7ba1\u7406\u754c\u9762\u7684\u5168\u9762\u6d1e\u5bdf\u548c\u63a7\u5236\u5bf9\u4e8e\u8c03\u8bd5\u3001\u9a8c\u8bc1\u548c\u8fd0\u884c\u6574\u4e2a\u7cfb\u7edf\uff08\u5305\u62ec\u4e3b\u673a\u6a21\u5757\uff09\u81f3\u5173\u91cd\u8981\u3002\u5728\u7814\u7a76\u6a21\u5757\u63a5\u53e3\u65f6\uff0c\u5fc5\u987b\u8003\u8651\u51e0\u4e2a\u8981\u7d20\uff0c\u5e76\u4e14\u6240\u6709\u8981\u7d20\u90fd\u9700\u8981\u4e0e\u5176\u4ed6\u63a5\u53e3\u3001\u4e3b\u673a\u7535\u53e3\u548c\u5149\u53e3\u7d27\u5bc6\u8026\u5408\u3002<\/p><figure class=\"wp-block-table\"><table><tbody><tr><td>\u9886\u57df<\/td><td>\u793a\u4f8b<\/td><td>\u63a8\u52a8\u56e0\u7d20<\/td><\/tr><tr><td>\u6807\u51c6\u5185\u52a1\u7ba1\u7406<\/td><td>\u6b63\u786e\u6a21\u5757\u521d\u59cb\u5316\u3001\u62a5\u544a\u4f9b\u5e94\u5546\u548c\u578b\u53f7 ID\u3001\u6807\u51c6\u53c2\u6570\u6d4b\u91cf\u3002<\/td><td>\u201c\u4f7f\u7528\u201d\u6a21\u5757\u5e76\u901a\u8fc7\u4e3b\u673a\u6b63\u786e\u521d\u59cb\u5316\u6a21\u5757\u4ee5\u4f7f\u4e3b\u673a\u6b63\u786e\u8bc6\u522b\u6a21\u5757\u53ca\u5176\u529f\u80fd\u7684\u6807\u51c6\u8981\u6c42\u3002<\/td><\/tr><tr><td>\u6d4b\u91cf\u3001\u8b66\u62a5\u548c\u9519\u8bef<\/td><td>\u5bf9 LOS\u3001OSNR \u53d8\u5316\uff08\u548c FEC \u4e4b\u524d\u7684\u8bef\u7801\u7387\uff09\u3001CD\u3001PD\u3001\u4e3b\u673a\u63a5\u53e3\u95ee\u9898\u7b49\u4e8b\u4ef6\u7684\u54cd\u5e94\u3002<\/td><td>\u5149\u5b50\u4e8b\u4ef6\u53ef\u4ee5\u9a71\u52a8\u8b66\u62a5\u548c\u9519\u8bef\uff0c\u5e94\u901a\u8fc7\u547d\u4ee4\u754c\u9762\u5feb\u901f\u800c\u660e\u786e\u5730\u62a5\u544a\u8fd9\u4e9b\u8b66\u62a5\u548c\u9519\u8bef\u3002\u50cf\u5149\u529f\u7387\u8fd9\u6837\u7684\u53c2\u6570\u5fc5\u987b\u662f\u53ef\u4fe1\u548c\u4e00\u81f4\u7684\u3002<\/td><\/tr><tr><td>\u63a5\u53e3\u901f\u5ea6\u3001\u541e\u5410\u91cf\u548c\u7a33\u5b9a\u6027<\/td><td>\u80fd\u591f\u5728\u53cc\u7ebf\u63a5\u53e3 (TWI) \u4e0a\u4ee5\u4e0d\u540c\u901f\u5ea6\u8fd0\u884c\uff0c\u6a21\u5757\u56fa\u4ef6\u7a33\u5b9a\uff0c\u53ef\u91cd\u590d\u5feb\u901f\u8bfb\/\u5199\u8bbf\u95ee \u3002<\/td><td>\u6a21\u5757\u4e2d\u7684\u5fae\u63a7\u5236\u5668\u5e94\u8be5\u662f\u7a33\u5b9a\u7684\uff0c\u4e0d\u4f1a\u56e0\u4e3a TWI \u4e0a\u7684\u201c\u7e41\u5fd9\u201d\u6d41\u91cf\u8d1f\u8f7d\u800c\u51fa\u73b0\u6545\u969c\u3002\u6b64\u5916\uff0c\u5728\u7e41\u91cd\u7684\u7ba1\u7406\u63a5\u53e3\u8d1f\u8f7d\u4e0b\uff0c\u5176\u4ed6\u5185\u52a1\u7ba1\u7406\u4efb\u52a1\u4ecd\u5fc5\u987b\u4ee5\u7a33\u5b9a\u7684\u65b9\u5f0f\u7ee7\u7eed\u6267\u884c\u3002<\/td><\/tr><tr><td>\u4e0e\u4e8b\u4ef6\u76f8\u5173\u7684\u63a5\u53e3\u65f6\u95f4<\/td><td>\u786e\u8ba4\u5173\u4e8e\u8b66\u62a5\u548c\u4e3b\u673a\u7535\u6c14\u63a5\u53e3\u72b6\u6001\u7684\u6b63\u786e LOS \u54cd\u5e94\u3002\u4ece LOS \u4e8b\u4ef6\u4e2d\u6062\u590d \u2013 \u6062\u590d\u65f6\u95f4\u3001\u7a33\u5b9a\u6027\u3001\u662f\u5426\u81ea\u52a8\u6062\u590d\u6216\u9700\u8981\u4e3b\u673a\u5e72\u9884\u3002<\/td><td>\u670d\u52a1\u4e2d\u65ad\u548c\u81ea\u4e3b\u6062\u590d\u80fd\u529b\u4ecd\u7136\u662f\u7ebf\u8def\u7aef\u548c\u5ba2\u6237\u7aef\u6a21\u5757\u9762\u4e34\u7684\u91cd\u5927\u6311\u6218\u3002\u6839\u636e\u5149\u5b50\u548c\u4e3b\u673a\u7535\u53e3\u72b6\u6001\u6765\u63cf\u8ff0\u63a5\u53e3\u6d88\u606f\u548c\u65f6\u5e8f\u4e5f\u5f88\u91cd\u8981\u3002<\/td><\/tr><\/tbody><\/table><\/figure><p>\u4e00\u4e2a\u975e\u5e38\u7b80\u5355\u7684\u5e94\u7528\u662f ONT \u91cd\u590d\u8bfb\/\u5199\u8bbf\u95ee\uff0c\u5b83\u88ab\u5e7f\u6cdb\u7528\u4f5c\u6a21\u5757\u7a33\u5b9a\u6027\u7684\u4e00\u9636\u6d4b\u8bd5\u3002\u5b83\u6839\u636e\u7528\u6237\u5b9a\u4e49\u7684\u8bfb\/\u5199\u4e8b\u4ef6\u52a0\u8f7d\u547d\u4ee4\u754c\u9762\uff0c\u7136\u540e\u53ef\u4ee5\u8fd0\u884c\u5176\u4ed6\u6d4b\u8bd5\uff0c\u5982\u6b63\u5e38\u6d41\u91cf\u6216\u538b\u529b\u6d4b\u8bd5\uff08\u5982\u504f\u5dee\uff09\uff0c\u4ee5\u67e5\u770b\u547d\u4ee4\u603b\u7ebf\u548c\u6a21\u5757\u5fae\u63a7\u5236\u5668\u4e0a\u7684\u91cd\u590d\u548c\u91cd\u578b\u52a0\u8f7d\u662f\u5426\u5f71\u54cd\u6a21\u5757\u7684\u8fd0\u884c\u548c\u7a33\u5b9a\u6027\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_12.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_12.jpg\" alt=\"\" class=\"wp-image-3961\" width=\"737\" height=\"489\" srcset=\"http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_12.jpg 982w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_12-300x199.jpg 300w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_12-768x510.jpg 768w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_12-285x190.jpg 285w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_12-600x398.jpg 600w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_12-64x42.jpg 64w\" sizes=\"(max-width: 737px) 100vw, 737px\" \/><\/a><figcaption>\u56fe 12 \u2013 CFP2 DCO \u6a21\u5757\u4e0a\u4f7f\u7528\u7684 MDIO \u547d\u4ee4\u63a5\u53e3\u7684 ONT \u6a21\u5757\u8bfb\/\u5199\u52a0\u8f7d\u3002<\/figcaption><\/figure><\/div><p>ONT \u672c\u673a\u652f\u6301\u76f8\u5e72\u6a21\u5757\uff08QSFP-DD \u548c\u5168\u529f\u80fd DWDM CFP2\uff09\u7684\u6269\u5c55\u7ba1\u7406\u8981\u6c42\uff0c\u5e76\u4ee5\u6e05\u6670\u4e00\u81f4\u7684\u65b9\u5f0f\u5728 GUI \u4e0a\u663e\u793a\u5173\u952e\u53c2\u6570\u548c\u72b6\u6001\u3002\u5de5\u4f5c\u6ce2\u957f\u7b49\u5173\u952e\u53c2\u6570\u53ef\u4ee5\u76f4\u63a5\u5728 GUI \u4e2d\u8f7b\u677e\u8bbe\u7f6e\u548c\u8ddf\u8e2a\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7\u81ea\u52a8\u5316\u811a\u672c\u5b9e\u73b0\u6df1\u5ea6 SVT \u6d4b\u8bd5\u8981\u6c42\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_13.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_13.jpg\" alt=\"\" class=\"wp-image-3962\" width=\"737\" height=\"489\" srcset=\"http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_13.jpg 982w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_13-300x199.jpg 300w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_13-768x510.jpg 768w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_13-285x190.jpg 285w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_13-600x398.jpg 600w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_13-64x42.jpg 64w\" sizes=\"(max-width: 737px) 100vw, 737px\" \/><\/a><figcaption>\u56fe 13 \u2013 \u7528\u4e8e\u8bbe\u7f6e\u5173\u952e\u76f8\u5e72\u6a21\u5757\u53c2\u6570\u7684 ONT GUI<\/figcaption><\/figure><\/div><div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_14.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_14.jpg\" alt=\"\" class=\"wp-image-3963\" width=\"737\" height=\"489\" srcset=\"http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_14.jpg 982w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_14-300x199.jpg 300w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_14-768x510.jpg 768w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_14-285x190.jpg 285w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_14-600x398.jpg 600w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_14-64x42.jpg 64w\" sizes=\"(max-width: 737px) 100vw, 737px\" \/><\/a><figcaption>\u56fe 14 \u2013 \u62a5\u544a\u76f8\u5e72\u8f6c\u53d1\u5668\u529f\u80fd\u7684 ONT GUI\u3002<\/figcaption><\/figure><\/div><p>\u547d\u4ee4\u754c\u9762\u548c\u76f8\u5173\u6a21\u5757\u56fa\u4ef6\u5fc5\u987b\u6b63\u786e\u62a5\u544a\u5149\u5b66\u53c2\u6570\uff0c\u8fd9\u8fdc\u6bd4\u5ba2\u6237\u7aef\u6a21\u5757\u4e2d\u7684\u7b80\u5355\u529f\u7387\u6d4b\u91cf\u590d\u6742\u3002\u5fc5\u987b\u6b63\u786e\u62a5\u544a\u548c\u8ddf\u8e2a\u4e00\u7cfb\u5217\u52a8\u6001\u53c2\u6570\uff0c\u5305\u62ec OSNR\u3001CD\u3001\u8bef\u5dee\u77e2\u91cf\u5e45\u5ea6\u3001PD \u548c DGD\uff08\u53ef\u80fd\u8fd8\u6709\u4e00\u7cfb\u5217\u7528\u6237\u53ef\u7f16\u7a0b\u9650\u503c\uff09\u3002ONT \u53ef\u4ee5\u4e0e VIAVI MAP-300 \u4ea7\u54c1\u7cfb\u5217\u4e00\u8d77\u4f7f\u7528\uff0c\u4ee5\u5141\u8bb8\u4ea7\u751f\u548c\u64cd\u7eb5\u5149\u5b66\u53c2\u6570\uff0c\u800c\u8fd9\u4e9b\u53c2\u6570\u53c8\u53ef\u4ee5\u5728 ONT \u4e2d\u6d4b\u8bd5\u7684\u5149\u5b66\u6a21\u5757\u4e2d\u8fdb\u884c\u8ddf\u8e2a\u548c\u9a8c\u8bc1\u3002\u8fd9\u4e5f\u53ef\u7528\u4e8e\u652f\u6301 DSP \u56fa\u4ef6\u7684\u5f00\u53d1\u548c\u9a8c\u8bc1\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_15.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_15.jpg\" alt=\"\" class=\"wp-image-3964\" width=\"737\" height=\"489\" srcset=\"http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_15.jpg 982w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_15-300x199.jpg 300w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_15-768x510.jpg 768w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_15-285x190.jpg 285w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_15-600x398.jpg 600w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_15-64x42.jpg 64w\" sizes=\"(max-width: 737px) 100vw, 737px\" \/><\/a><figcaption>\u56fe 15 \u2013 \u663e\u793a\u6a21\u5757\u62a5\u544a\u7684\u76f8\u5e72\u6a21\u5757\u5149\u5b66\u53c2\u6570\u7684 ONT GUI\u3002<\/figcaption><\/figure><\/div><div class=\"wp-block-image\"><figure class=\"aligncenter size-large is-resized\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_16.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_16.jpg\" alt=\"\" class=\"wp-image-3965\" width=\"737\" height=\"489\" srcset=\"http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_16.jpg 982w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_16-300x199.jpg 300w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_16-768x510.jpg 768w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_16-285x190.jpg 285w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_16-600x398.jpg 600w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_16-64x42.jpg 64w\" sizes=\"(max-width: 737px) 100vw, 737px\" \/><\/a><figcaption>\u56fe 16 \u2013 ONT GUI \u76f8\u5e72\u6a21\u5757\u7269\u7406\u5c42\u63a5\u53e3\u72b6\u6001\u6982\u89c8<\/figcaption><\/figure><\/div><p><\/p><h1 class=\"wp-block-heading\">\u7cfb\u7edf\u9a8c\u8bc1<\/h1><p>\u7cfb\u7edf\u9a8c\u8bc1\u6d89\u53ca\u5230\u6a21\u5757\u7684\u5e7f\u5ea6\u548c\u6df1\u5ea6\u6d4b\u8bd5\uff0c\u7269\u7406\u786c\u4ef6\u548c\u6a21\u5757\u56fa\u4ef6\u90fd\u9700\u8981\u6d4b\u8bd5\u3002\u6d4b\u8bd5\u901a\u5e38\u662f\u591a\u9886\u57df\u548c\u81ea\u52a8\u5316\u7684\uff0c\u5f53\u6a21\u5757\u548c\u7f51\u7edc\u96c6\u6210\u5728\u4e00\u8d77\u65f6\u4e5f\u662f\u4e00\u4e2a\u5173\u952e\u9636\u6bb5\uff0c\u56e0\u4e3a\u6a21\u5757\u548c\u4e3b\u673a\u4e4b\u95f4\u7684\u4ea4\u4e92\u662f\u4e00\u4e2a\u5173\u952e\u7684\u7cfb\u7edf\u7ea7\u7279\u6027\u3002\u8fd9\u4e00\u9636\u6bb5\u5efa\u7acb\u5728\u6a21\u5757\u5f00\u53d1\u9636\u6bb5\u4f7f\u7528\u7684\u8bb8\u591a\u5e94\u7528\u7a0b\u5e8f\u7684\u57fa\u7840\u4e0a\uff0c\u4f46\u91cd\u70b9\u662f\u8f6f\u4ef6\u548c\u6027\u80fd\u65b9\u9762\u3002\u5173\u952e\u4e14\u53ca\u65f6\u5730\u62a5\u544a\u62a5\u8b66\u548c\u9519\u8bef\u8d77\u7740\u6838\u5fc3\u4f5c\u7528\uff0c\u8fd9\u79cd\u62a5\u544a\u662f\u901a\u8fc7\u5806\u53e0\u548c\u534f\u8c03\u5149\u7535\u8bbe\u5907\u7684\u72b6\u6001\u4ee5\u53ca\u6a21\u5757 MIS \u5411\u4e3b\u673a\u62a5\u544a\u7684\u5185\u5bb9\u6765\u5b8c\u6210\u7684\u3002\u5c06\u8bbe\u7f6e\u94fe\u8def\u53c2\u6570\uff08\u4f8b\u5982 OSNR \u6216 FEC \u524d\u8bef\u7801\u7387\uff09\uff0c\u7136\u540e\u53c2\u8003\/\u6d4b\u8bd5\u5149\u94fe\u8def\u53ef\u4ee5\u964d\u7ea7\uff08\u4f7f\u7528 VIAVI MAP-300 \u4ea7\u54c1\u7cfb\u5217\uff09\u3002\u5f53\u94fe\u8def\u901a\u8fc7\u964d\u7ea7\u7ea7\u522b\u65f6\uff0c\u6a21\u5757\u548c\u4e3b\u673a\u7ec4\u5408\u5fc5\u987b\u53d1\u51fa\u6b63\u786e\u7684\u8b66\u62a5\u5e76\u91c7\u53d6\u9002\u5f53\u7684\u63aa\u65bd\uff08\u53ef\u80fd\u5305\u62ec\u5207\u6362\u5230\u53e6\u4e00\u4e2a\u94fe\u8def\u548c\u5f15\u53d1\u7cfb\u7edf\u7ea7\u8b66\u62a5\uff09\u3002\u7136\u540e\uff0c\u5f53\u94fe\u8def\u6062\u590d\u65f6\uff0c\u7cfb\u7edf\u5e94\u9075\u5faa\u6b63\u786e\u7684\u6062\u590d\u8fc7\u7a0b\u3002<\/p><p>\u6211\u4eec\u5728\u8fd9\u4e2a\u9636\u6bb5\u770b\u5230\u7684\u6700\u82db\u523b\u7684\u6d4b\u8bd5\u4e4b\u4e00\u662f\u670d\u52a1\u4e2d\u65ad\u6d4b\u8bd5\u3002\u5b83\u57fa\u672c\u4e0a\u662f\u6d4b\u8bd5\u7cfb\u7edf\u5bf9\u5149\u4fe1\u53f7\u5b8c\u5168\u4e2d\u65ad\u540e\u6062\u590d\u7684\u54cd\u5e94\u3002\u6062\u590d\u8fc7\u7a0b\u548c\u65f6\u673a\u5c24\u5176\u4ee4\u4eba\u611f\u5174\u8da3\u3002\u5728\u5ba2\u6237\u7aef\u7cfb\u7edf\u4e0a\uff0c\u8fd9\u662f\u4e00\u4e2a\u76f8\u5bf9\u7b80\u5355\u7684\u6d4b\u8bd5\uff0c\u5176\u4e2d\u5355\u4e2a\u5149\u4fe1\u53f7\u95ea\u65ad\uff0c\u5e76\u76d1\u63a7\u6a21\u5757\u54cd\u5e94\uff08\u5305\u62ec\u6a21\u5757 MIS \u6d88\u606f\u4f20\u9012\uff09\u3002\u7136\u540e\u91cd\u65b0\u8fde\u63a5\u5149\u4fe1\u53f7\uff0c\u5e76\u518d\u6b21\u54cd\u5e94\uff0c\u5305\u62ec\u6062\u590d\u65f6\u95f4\u548c\u8bb0\u5f55\u7684 MIS \u6d88\u606f\u3002\u5373\u4f7f\u4f7f\u7528\u7b80\u5355\u7684\u76f4\u63a5\u68c0\u6d4b\u6a21\u5757\uff0c\u6211\u4eec\u4e5f\u4f1a\u770b\u5230\u6a21\u5757\u9501\u5b9a\u6216\u901a\u8fc7 MIS \u53d1\u9001\u8bef\u5bfc\u6027\u6d88\u606f\u7684\u95ee\u9898\u3002\u5728\u6700\u7cdf\u7cd5\u7684\u60c5\u51b5\u4e0b\uff0c\u6a21\u5757\u4e0d\u80fd\u6b63\u786e\u81ea\u6211\u6062\u590d\uff0c\u9700\u8981\u901a\u8fc7\u4e3b\u673a\u8fdb\u884c\u624b\u52a8\u5e72\u9884\u3002\u76f8\u5e72\u6a21\u5757\u7684\u6d4b\u8bd5\u8d1f\u8f7d\u53d8\u5f97\u66f4\u7cdf\uff0c\u56e0\u4e3a\u73b0\u5728\u8be5\u6a21\u5757\u6f5c\u5728\u5730\u5728\u591a\u5149\u8f7d\u6ce2 DWDM \u7cfb\u7edf\u4e2d\u5de5\u4f5c\uff0c\u56e0\u6b64\u4e2d\u65ad\u4e8b\u4ef6\u53ef\u80fd\u4ec5\u4e0e\u591a\u4e2a\u5149\u6ce2\u957f\u4e2d\u7684\u4e00\u4e2a\u5149\u6ce2\u957f\u76f8\u5173\u8054\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_17.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"304\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_17.jpg\" alt=\"\" class=\"wp-image-3966\" srcset=\"http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_17.jpg 800w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_17-300x114.jpg 300w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_17-768x292.jpg 768w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_17-600x228.jpg 600w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_17-64x24.jpg 64w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><figcaption>\u56fe 17 \u2013 \u4f7f\u7528 MAP-300 \u53ef\u8c03\u8c10\u8fc7\u6ee4\u5668 (mTFX) \u7684 DWDM \u73af\u5883\u4e2d\u7684\u670d\u52a1\u4e2d\u65ad<\/figcaption><\/figure><\/div><p>\u7cfb\u7edf\u4f9d\u8d56\u4e8e\u8be5\u6a21\u5757\u6b63\u786e\u5730\u8ddf\u8e2a\u6240\u9009\u62e9\u7684\u4e00\u4e2a\u8f7d\u6ce2\u5e76\u76d1\u63a7\u5176\u5149\u529f\u7387\u7535\u5e73\uff0c\u4ee5\u4fbf\u5f53\u670d\u52a1\u4e2d\u65ad\u3001\u8fbe\u5230\u4fe1\u53f7\u4e22\u5931 (LOS) \u6c34\u5e73\u65f6\uff0c\u8be5\u6a21\u5757\u901a\u8fc7 MIS \u63a5\u53e3\u6b63\u786e\u5730\u6307\u793a\u8fd9\u4e00\u70b9\u3002\u5728\u6b64\u6d4b\u8bd5\u671f\u95f4\uff0c\u6a21\u5757\u53ef\u80fd\u8fd8\u9700\u8981\u62b5\u5236\u4e3b\u673a\u63a5\u53e3\uff0c\u5e76\u901a\u8fc7 MIS \u53d1\u51fa\u4fe1\u53f7\u8868\u793a\u6b64\u60c5\u51b5\u3002\u6062\u590d\u8fc7\u7a0b\u662f\u4e00\u9879\u8981\u6c42\u5f88\u9ad8\u7684\u6d4b\u8bd5\uff0c\u56e0\u4e3a\u6a21\u5757\u5fc5\u987b\u6b63\u786e\u5730\u91cd\u65b0\u83b7\u53d6\u91cd\u65b0\u58f0\u660e\u7684\u5149\u8f7d\u6ce2\uff0c\u5e76\u542f\u52a8\u76f8\u5e72\u63a5\u6536\u4fe1\u53f7\u94fe\uff0c\u5411\u4e3b\u673a\u53d1\u51fa\u94fe\u8def\u6b63\u5728\u6062\u590d\u7684\u4fe1\u53f7\uff0c\u5e76\u4e14\u6b63\u786e\u5730\u8bbe\u7f6e\u4e3b\u673a\u5230\u6a21\u5757\u7684\u7535\u53e3\u3002\u8fd9\u4e9b\u4e8b\u4ef6\u7684\u987a\u5e8f\u548c\u65f6\u95f4\u662f\u81f3\u5173\u91cd\u8981\u7684\uff0c\u8fd9\u4e00\u8fc7\u7a0b\u7684\u7a33\u5b9a\u6027\u4e5f\u662f\u5982\u6b64\u3002VIAVI ONT \u4e3a\u9a8c\u8bc1\u548c\u8c03\u8bd5\u6b64\u6d4b\u8bd5\u7684 DCO \u6a21\u5757\u65b9\u9762\u63d0\u4f9b\u4e86\u4e00\u4e2a\u7406\u60f3\u7684\u6d4b\u8bd5\u73af\u5883\u3002<\/p><p>\u7cfb\u7edf\u9a8c\u8bc1\u8fd8\u9700\u8981\u5bf9\u901a\u8fc7\u94fe\u8def\u548c\u6a21\u5757\u4f20\u8f93\u7684\u5b9e\u65f6\u6d41\u91cf\u8fdb\u884c\u6df1\u5165\u6d4b\u8bd5\u3002\u5728\u8bb8\u591a\u60c5\u51b5\u4e0b\uff0c\u8fd9\u5c06\u662f\u591a\u4e1a\u52a1\u6d41\u91cf\uff0c\u4f8b\u5982 OTN \u4ee5\u53ca\u4ee5\u592a\u7f51\u3002OTN \u7684\u529f\u80fd\u4e3a\u6700\u7ec8\u7528\u6237\u63d0\u4f9b\u4e86\u6781\u5927\u7684\u7075\u6d3b\u6027\uff0c\u4f46\u5b83\u786e\u5b9e\u63d0\u51fa\u4e86\u66f4\u9ad8\u7684\u6d4b\u8bd5\u8981\u6c42\u3002VIAVI ONT \u652f\u6301\u5168\u529f\u80fd OTN\uff0c\u5305\u62ec\u5bf9 400G \u7ea7 OTN \u670d\u52a1\u81f3\u5173\u91cd\u8981\u7684 Flexo\u3001FOIC 1.2\u3001FOIC 2.4 \u548c FOIC 4.8\u3002<\/p><h1 class=\"wp-block-heading\">VIAVI ONT 800G<\/h1><p>\u884c\u4e1a\u53c2\u8003 ONT \u7cfb\u5217\u7684\u6700\u65b0\u6210\u5458\u9488\u5bf9\u76f8\u5e72\u6a21\u5757\u751f\u6001\u7cfb\u7edf\u7684\u9700\u6c42\u8fdb\u884c\u4e86\u4f18\u5316\u3002\u652f\u6301 QSFP-DD \u548c CFP2 DCO400G \u5916\u5f62\u89c4\u683c\u4e0e\u51b7\u5374\u548c\u7535\u6e90\u9700\u6c42\u76f8\u5339\u914d\uff0c\u5e76\u914d\u5408\u4e00\u7cfb\u5217\u5e94\u7528\u7a0b\u5e8f\uff0c\u8fd9\u4e9b\u5e94\u7528\u7a0b\u5e8f\u53ef\u5728\u6574\u4e2a\u6a21\u5757\u751f\u547d\u5468\u671f\u5185\u63d0\u4f9b\u5b8c\u6574\u7684\u6d4b\u8bd5\u548c\u6d4b\u91cf\u8986\u76d6\u8303\u56f4\u3002\u4ece\u7814\u53d1\u7684\u6df1\u5c42\u9700\u6c42\u5230 SVT \u548c\u96c6\u6210\u7684\u5e7f\u5ea6\u548c\u6df1\u5ea6\uff0cONT DCO \u5e2e\u52a9\u52a0\u901f\u5f00\u53d1\u548c\u8c03\u8bd5\u7684\u65b9\u65b9\u9762\u9762\u3002<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full is-resized\"><a href=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_18.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.comtest.cn\/wp-content\/uploads\/2021\/05\/coherent_18.jpg\" alt=\"\" class=\"wp-image-3967\" width=\"709\" height=\"225\" srcset=\"http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_18.jpg 1418w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_18-300x95.jpg 300w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_18-1024x325.jpg 1024w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_18-768x244.jpg 768w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_18-600x190.jpg 600w, http:\/\/www.comtest.com.cn\/wp-content\/uploads\/2021\/05\/coherent_18-64x20.jpg 64w\" sizes=\"(max-width: 709px) 100vw, 709px\" \/><\/a><figcaption>\u56fe 18 \u2013 ONT 800G DCO \u6a21\u5757<\/figcaption><\/figure><\/div><p><\/p><h1 class=\"wp-block-heading\">VIAVI MAP-300<\/h1><p>\u603b\u7ed3<\/p><p>\u53ef\u63d2\u62d4\u76f8\u5e72\u5149\u5b66\u5668\u4ef6\u6709\u671b\u5c06\u53ef\u63d2\u62d4\u5ba2\u6237\u7aef\u5149\u5b66\u5668\u4ef6\u7684\u4f18\u52bf\u5e26\u5230\u5305\u62ec\u57ce\u57df\u7f51\u3001DCI \u548c DWDM\/\u4f20\u8f93\u5728\u5185\u7684\u4e00\u7cfb\u5217\u5168\u65b0\u5e94\u7528\u4e2d\u3002\u76f8\u5e72\u6a21\u5757\u7684\u66f4\u5927\u590d\u6742\u6027\u5bf9\u6d4b\u8bd5\u548c\u9a8c\u8bc1\u7684\u6240\u6709\u9636\u6bb5\u90fd\u63d0\u51fa\u4e86\u5f88\u9ad8\u7684\u8981\u6c42\uff0c\u4ece\u65e9\u671f\u7684\u7ec4\u4ef6\u9a8c\u8bc1\u5230\u6a21\u5757\u5f00\u53d1\u3001\u8f6f\u4ef6\u548c\u56fa\u4ef6\u5f00\u53d1\u3001\u6a21\u5757\u9a8c\u8bc1\u3001\u7cfb\u7edf\u96c6\u6210\u548c\u751f\u4ea7\u3002\u6240\u6709\u8fd9\u4e9b\u90fd\u5fc5\u987b\u5728\u79ef\u6781\u7684\u4ef7\u683c\u9884\u671f\u548c\u4e0a\u5e02\u65f6\u95f4\u7684\u80cc\u666f\u4e0b\u5b9e\u73b0\u3002\u6a21\u5757\u547d\u4ee4\u548c\u7ba1\u7406\u754c\u9762\u7684\u590d\u6742\u6027\u4e5f\u63d0\u9ad8\uff0c\u8fdb\u4e00\u6b65\u52a0\u5267\u4e86\u8fd9\u4e00\u70b9\u3002<\/p><p>VIAVI \u5728\u652f\u6301\u76f8\u5e72\u7cfb\u7edf\u7684\u5f00\u53d1\u548c\u9a8c\u8bc1\u65b9\u9762\u62e5\u6709\u591a\u5e74\u7ecf\u9a8c\uff0c\u4ece\u9ad8\u6027\u80fd DWDM \u4e2d\u4f7f\u7528\u7684\u5168\u529f\u80fd\u7ebf\u5361\uff0c\u5230\u76ee\u524d\u5728 100G \u548c 200G \u4e0a\u4f7f\u7528\u7684\u65b0\u5174 DCO \u6a21\u5757\uff0c\u4e0d\u4e00\u800c\u8db3\u3002\u4e3a\u4e86\u5e94\u5bf9 400G \u7ea7 DCO \u4e0e PAM-4 \u7535\u6c14\u4e3b\u673a\u4fe1\u4ee4\u3001\u65b0\u7684\u66f4\u9ad8\u7ea7\u7684\u6a21\u5757\u7ba1\u7406\u534f\u8bae\u548c\u65b0\u7684 OTN \u670d\u52a1\u76f8\u7ed3\u5408\u6240\u5e26\u6765\u7684\u6311\u6218\uff0c\u9700\u8981\u5168\u9762\u548c\u96c6\u6210\u7684\u6d4b\u8bd5\u548c\u9a8c\u8bc1\u65b9\u6cd5\u3002\u6a21\u5757 DSP\u3001\u4e3b\u673a\u63a5\u53e3\u3001\u5149\u57df\u548c\u7ba1\u7406\u63a5\u53e3\u4e4b\u95f4\u7684\u7d27\u5bc6\u534f\u8c03\u9700\u8981\u5728\u8fd9\u65b9\u9762\u5b8c\u5168\u96c6\u6210\u7684\u5e94\u7528\u7a0b\u5e8f\u548c\u6d4b\u8bd5\u5de5\u5177\uff0c\u5e76\u4e14\u53ef\u4ee5\u8ddf\u8e2a\u6bcf\u4e2a\u57df\u4e2d\u7684\u4e8b\u4ef6\u3002<\/p><p>ONT DCO \u9488\u5bf9\u6574\u4e2a\u4ea7\u54c1\u751f\u547d\u5468\u671f\u7684\u6d4b\u8bd5\u548c\u9a8c\u8bc1\u9700\u6c42\u8fdb\u884c\u4e86\u4f18\u5316\uff0c\u5e76\u652f\u6301\u76f8\u5e72\u6a21\u5757\u4e0e\u5404\u79cd\u5e94\u7528\u7a0b\u5e8f\u6df7\u5408\u7684\u82db\u523b\u73af\u5883\u548c\u51b7\u5374\u8981\u6c42\uff0c\u8fd9\u4e9b\u5e94\u7528\u7a0b\u5e8f\u4f7f\u7528\u652f\u6301\u6a21\u5757\u7ba1\u7406\u548c\u547d\u4ee4\u754c\u9762\u4ea4\u4e92\u7684\u72ec\u7279\u5de5\u5177\uff0c\u6ee1\u8db3\u4ece\u5806\u6808\u76f4\u5230\u591a\u4e1a\u52a1\u4ee5\u592a\u7f51\u548c OTN \u7684\u7269\u7406\u5c42 (PAM-4) \u7684\u9700\u6c42\u3002<\/p>","protected":false},"excerpt":{"rendered":"<p>\u672c VIAVI \u767d\u76ae\u4e66\u4ecb\u7ecd\u4e86\u53ef\u63d2\u62d4\u76f8\u5e72\u5149\u6a21\u5757\uff0c\u4ee5\u53ca\u4e3a 100G \u53ca\u66f4\u9ad8\u5e26\u5bbd\u6210\u529f\u5f00\u53d1\u3001\u9a8c\u8bc1\u548c\u90e8\u7f72\u53ef\u63d2\u62d4\u76f8\u5e72\u5149\u6a21\u5757\u6240\u9700\u7684\u6d4b\u8bd5\u4ee5\u53ca\u9a8c\u8bc1\u6311\u6218\u548c\u65b9\u6cd5\u3002<\/p>\n","protected":false},"author":2,"featured_media":3968,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[29,108,24],"tags":[341],"class_list":["post-3949","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-datacenter","category-electronics","category-solutions","tag-341"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\r\n<title>\u6d4b\u8bd5\u53ef\u63d2\u62d4\u76f8\u5e72\u5149\u6a21\u5757 - \u901a\u6d4b\u79d1\u6280<\/title>\r\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\r\n<link 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