{"id":17676,"date":"2026-06-17T11:32:35","date_gmt":"2026-06-17T03:32:35","guid":{"rendered":"https:\/\/www.premlink.net\/?p=17676"},"modified":"2026-06-18T08:34:58","modified_gmt":"2026-06-18T00:34:58","slug":"edfa-noise-figure-explained-catv-ftth-amplifiers","status":"publish","type":"post","link":"https:\/\/www.premlink.net\/zh\/edfa-noise-figure-explained-catv-ftth-amplifiers\/","title":{"rendered":"EDFA\u566a\u58f0\u7cfb\u6570\u8be6\u89e3\uff1a\u4e3a\u4f55\u5b83\u5bf9\u6709\u7ebf\u7535\u89c6\u548c\u5149\u7ea4\u5230\u6237\u653e\u5927\u5668\u81f3\u5173\u91cd\u8981"},"content":{"rendered":"<p class=\"wp-block-paragraph\"><strong>EDFA\u566a\u58f0\u7cfb\u6570<\/strong> NF\uff08\u4fe1\u566a\u6bd4\uff09\u51b3\u5b9a\u4e86\u63ba\u94d2\u5149\u7ea4\u653e\u5927\u5668\uff08EDFA\uff09\u7684\u4fe1\u566a\u6bd4\u635f\u5931\u3002\u8fd9\u4e2a\u5173\u952e\u6570\u503c\u51b3\u5b9a\u4e86\u60a8\u7684 1550 nm CATV \u94fe\u8def\u80fd\u5426\u8fbe\u5230 CNR \u9884\u7b97\u4e0a\u9650\uff0c\u60a8\u7684 RFoG \u7cfb\u7edf\u80fd\u5426\u627f\u53d7 1:128 \u7684\u5206\u8def\uff0c\u4ee5\u53ca\u4e24\u7ea7\u653e\u5927\u5668\u7ea7\u8054\u7684\u6027\u80fd\u662f\u5426\u7b26\u5408\u89c4\u8303\u3002\u672c\u6307\u5357\u89e3\u91ca\u4e86 NF \u7684\u542b\u4e49\u3001\u4e3a\u4f55\u5728 0 dBm \u8f93\u5165\u4e0b\u6d4b\u91cf\uff0c\u4ee5\u53ca EDFA \u548c EYDFA \u7684\u533a\u522b\u2014\u2014\u4e13\u4e3a ISP \u548c\u8fd0\u8425\u5546\u7f51\u7edc\u89c4\u5212\u4eba\u5458\u7f16\u5199\u3002Premlink \u51fa\u54c1 <a href=\"https:\/\/www.premlink.net\/zh\/catv-edfa-eydfa\/\">CATV EDFA\/EYDFA\u5e73\u53f0<\/a> \u8d2f\u7a7f\u5168\u6587\uff0c\u7528\u4f5c\u89c4\u683c\u8303\u56f4\u7684\u53c2\u8003\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u7b80\u8981\u56de\u7b54\uff08\u9002\u7528\u4e8e\u4eba\u5de5\u667a\u80fd\u6982\u8ff0\u548c\u7cbe\u9009\u6458\u8981\uff09\uff1a<\/strong> EDFA\u566a\u58f0\u7cfb\u6570\u662f\u6307\u653e\u5927\u5668\u5f15\u5165\u7684\u4fe1\u566a\u6bd4\uff08SNR\uff09\u52a3\u5316\uff0c\u4ee5\u5206\u8d1d\uff08dB\uff09\u8868\u793a\u3002\u5b83\u6765\u6e90\u4e8e\u63ba\u94d2\u5149\u7ea4\u4e2d\u4ea7\u751f\u7684\u653e\u5927\u81ea\u53d1\u8f90\u5c04\uff08ASE\uff09\u3002\u884c\u4e1a\u6807\u51c6\uff08IEC 61290-1\u3001Telcordia GR-1312-CORE\uff09\u5bf9NF\u7684\u6d4b\u91cf\u6807\u51c6\u4e3a\uff1a <strong>\u8f93\u5165\u529f\u7387\u4e3a 0 dBm<\/strong> \u56e0\u4e3a\u8fd9\u4e00\u70b9\u5904\u4e8e\u7ebf\u6027\u3001\u975e\u9971\u548c\u533a\u57df\uff0c\u8be5\u533a\u57df\u7684\u89c4\u683c\u5728\u4e0d\u540c\u5382\u5546\u4e4b\u95f4\u5177\u6709\u53ef\u91cd\u590d\u6027\u3002\u5178\u578b\u503c\uff1aEDFA 4.0\u20134.5 dB\uff0cEYDFA 4.5\u20135.5 dB\u3002\u53c2\u89c1 Premlink \u7684 <a href=\"https:\/\/www.premlink.net\/zh\/catv-edfa-eydfa\/\">CATV EDFA\/EYDFA \u4ea7\u54c1\u7cfb\u5217<\/a> \u8bf7\u53c2\u9605\u6570\u636e\u624b\u518c\u89c4\u683c\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u672c\u6307\u5357<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"#what-is-nf\">\u5149\u653e\u5927\u5668\u4e2d\u7684\u566a\u58f0\u7cfb\u6570\u7a76\u7adf\u610f\u5473\u7740\u4ec0\u4e48<\/a><\/li>\n\n\n\n<li><a href=\"#why-nf-matters\">\u4e3a\u4ec0\u4e48NF\u5728EDFA\u548cEYDFA\u90e8\u7f72\u4e2d\u81f3\u5173\u91cd\u8981<\/a><\/li>\n\n\n\n<li><a href=\"#why-0dbm\">\u4e3a\u4ec0\u4e48\u566a\u58f0\u7cfb\u6570\u662f\u5728 0 dBm \u8f93\u5165\u529f\u7387\u4e0b\u6d4b\u91cf\u7684<\/a><\/li>\n\n\n\n<li><a href=\"#edfa-vs-eydfa-nf\">EDFA \u4e0e EYDFA\uff1a\u660e\u786e\u7684 NF \u6743\u8861<\/a><\/li>\n\n\n\n<li><a href=\"#design-factors\">\u63a8\u52a8NF\u53d1\u5c55\u7684\u4e94\u4e2a\u8bbe\u8ba1\u56e0\u7d20<\/a><\/li>\n\n\n\n<li><a href=\"#scenarios\">NF\u5728\u5b9e\u9645\u7f51\u7edc\u573a\u666f\u4e2d\u7684\u5f71\u54cd<\/a><\/li>\n\n\n\n<li><a href=\"#datasheet\">\u5982\u4f55\u9605\u8bfbNF\u6570\u636e\u8868<\/a><\/li>\n\n\n\n<li><a href=\"#future\">\u5c55\u671b\u672a\u6765\uff1a\u4e0b\u4e00\u4ee3\u653e\u5927\u5668\u4e2d\u7684\u566a\u58f0\u7cfb\u6570<\/a><\/li>\n\n\n\n<li><a href=\"#faq\">\u5e38\u89c1\u95ee\u9898\u89e3\u7b54<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u5149\u653e\u5927\u5668\u4e2d\u7684\u566a\u58f0\u7cfb\u6570\u7a76\u7adf\u610f\u5473\u7740\u4ec0\u4e48<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u566a\u58f0\u7cfb\u6570\u662f\u8f93\u5165\u4fe1\u566a\u6bd4\u4e0e\u8f93\u51fa\u4fe1\u566a\u6bd4\u4e4b\u6bd4\u3002\u7528\u7ebf\u6027\u5355\u4f4d\u8868\u793a\u4e3a NF = SNR\u3002<sub>\u5728<\/sub> \/ \u4fe1\u566a\u6bd4<sub>\u51fa\u53bb<\/sub>. \u4ee5\u5206\u8d1d\u4e3a\u5355\u4f4d\uff0cNF(dB) = SNR<sub>\u5728<\/sub>(dB) \u2212 \u4fe1\u566a\u6bd4<sub>\u51fa\u53bb<\/sub>\uff08dB\uff09\u3002\u5b83\u7528\u4e00\u4e2a\u6570\u5b57\u544a\u8bc9\u4f60\uff0c\u653e\u5927\u5668\u5de5\u4f5c\u540e\uff0c\u8f93\u5165\u4fe1\u53f7\u6bd4\u8f93\u51fa\u4fe1\u53f7\u5e72\u51c0\u591a\u5c11\u500d\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7406\u60f3\u7684\u653e\u5927\u5668\u566a\u58f0\u7cfb\u6570 (NF) \u5e94\u4e3a 0 dB\uff1a\u5b83\u80fd\u591f\u590d\u5236\u4fe1\u53f7\u800c\u4e0d\u5f15\u5165\u4efb\u4f55\u81ea\u8eab\u566a\u58f0\u3002\u4f46\u5b9e\u9645\u7684\u5149\u653e\u5927\u5668\u5e76\u975e\u5982\u6b64\u3002\u63ba\u94d2\u5149\u7ea4\uff08\u6216 EYDFA \u4e2d\u7684\u63ba\u94d2\u9571\u5149\u7ea4\uff09\u5373\u4f7f\u5728\u6ca1\u6709\u4fe1\u53f7\u8f93\u5165\u7684\u60c5\u51b5\u4e0b\u4e5f\u4f1a\u81ea\u8eab\u53d1\u51fa\u5bbd\u5e26\u5149\u3002\u8fd9\u79cd\u5149\u88ab\u79f0\u4e3a\u2026\u2026 <strong>\u653e\u5927\u81ea\u53d1\u8f90\u5c04\uff08ASE\uff09<\/strong>. ASE \u8986\u76d6\u6574\u4e2a C \u6ce2\u6bb5\uff0c\u4e0e\u4fe1\u53f7\u6ce2\u957f\u91cd\u53e0\uff0c\u5e76\u5728\u5149\u7535\u63a2\u6d4b\u5668\u5904\u4e0e\u4fe1\u53f7\u62cd\u9891\uff0c\u4ea7\u751f\u63a5\u6536\u5668\u65e0\u6cd5\u4e0e\u6570\u636e\u5206\u79bb\u7684\u7535\u566a\u58f0\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7531\u6b64\u53ef\u5f97\u51fa\u4e24\u4e2a\u5b9e\u9645\u540e\u679c\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>NF \u4e0d\u662f\u6536\u76ca\u3002.<\/strong> \u5982\u679c\u91c7\u7528\u76f8\u540c\u7684\u6cf5\u6d66\u7ed3\u6784\uff0c22 dBm EDFA \u548c 30 dBm EYDFA \u7684\u566a\u58f0\u7cfb\u6570 (NF) \u53ef\u80fd\u51e0\u4e4e\u76f8\u540c\u3002\u8f93\u51fa\u529f\u7387\u548c\u566a\u58f0\u7cfb\u6570\u662f\u72ec\u7acb\u6307\u5b9a\u7684\u3002.<\/li>\n\n\n\n<li><strong>NF \u4e0d\u8f93\u51fa OSNR\u3002.<\/strong> \u63a5\u6536\u7aef\u7684\u5149\u4fe1\u566a\u6bd4 (OSNR) \u53d6\u51b3\u4e8e\u566a\u58f0\u7cfb\u6570 (NF)\u3001\u8f93\u5165\u529f\u7387\u3001\u589e\u76ca\u548c\u5149\u6ee4\u6ce2\u3002\u5176\u4e2d\uff0c\u566a\u58f0\u7cfb\u6570\u662f\u653e\u5927\u5668\u7aef\u5bf9 OSNR \u7684\u8d21\u732e\u3002.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e3a\u4ec0\u4e48\u566a\u58f0\u7cfb\u6570\u5728EDFA\u548cEYDFA\u90e8\u7f72\u4e2d\u5f88\u91cd\u8981<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u524d\u7aef\u7684\u6bcf\u4e2a\u5149\u653e\u5927\u5668\u90fd\u4f1a\u589e\u52a0\u81ea\u53d1\u8f90\u5c04\u6563\u5c04\uff08ASE\uff09\u3002\u6bcf\u6b21ASE\u90fd\u4f1a\u964d\u4f4e\u5149\u63a5\u6536\u673a\u7684\u4fe1\u53f7\u8d28\u91cf\u3002\u6709\u4e24\u4e2a\u6307\u6807\u53ef\u4ee5\u8861\u91cf\u8fd9\u79cd\u4fe1\u53f7\u8d28\u91cf\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong><a href=\"https:\/\/www.premlink.net\/zh\/what-is-carrier-to-noise-ratio-cnr\/\" data-type=\"post\" data-id=\"15278\">CNR<\/a> \uff08\u8f7d\u566a\u6bd4\uff09<\/strong> \u6a21\u62df\u548cQAM\u89c6\u9891\u5206\u53d1<\/li>\n\n\n\n<li><strong>OSNR\uff08\u5149\u4fe1\u566a\u6bd4\uff09<\/strong> \u5728\u6570\u5b57\u6570\u636e\u4f20\u8f93\u4e2d<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e\u589e\u76ca\u4e3a G \u7684\u5355\u4e2a\u653e\u5927\u5668\uff0c\u8f93\u51fa\u7aef\u7684\u5149\u4fe1\u566a\u6bd4\u7ea6\u4e3a\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">OSNR_out \u2248 P_in \u2212 NF \u2212 10\u00b7log<sub>10<\/sub>\uff08B_opt\uff09+ 58<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5176\u4e2d B_opt \u4e3a\u5149\u6d4b\u91cf\u5e26\u5bbd\uff08\u901a\u5e38\u4e3a 0.1 nm\uff09\u3002\u5728\u8f93\u5165\u529f\u7387\u56fa\u5b9a\u7684\u60c5\u51b5\u4e0b\uff0c\u6bcf\u589e\u52a0 1 dB \u7684\u566a\u58f0\u7cfb\u6570 (NF)\uff0c\u8f93\u51fa\u7aef\u7684\u5149\u4fe1\u566a\u6bd4 (OSNR) \u5c31\u4f1a\u964d\u4f4e 1 dB\u3002\u8fd9 1 dB \u7684\u635f\u5931\u4f1a\u76f4\u63a5\u8f6c\u5316\u4e3a\u5149\u8282\u70b9\u5904\u7ea6 1 dB \u7684\u4fe1\u566a\u6bd4 (CNR)\u2014\u2014\u6216\u8005\uff0c\u5728\u6570\u5b57 PON \u7cfb\u7edf\u4e2d\uff0c\u8f6c\u5316\u4e3a\u63a5\u6536\u673a\u7075\u654f\u5ea6\u88d5\u91cf\u7ea6 1 dB\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7ea7\u8054\u653e\u5927\u5668\uff1a\u5149\u5b66\u4e2d\u7684\u5f17\u91cc\u65af\u516c\u5f0f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5f53\u5149\u8def\u7ecf\u8fc7\u4e24\u4e2a\u653e\u5927\u5668\u65f6\uff08\u4f8b\u5982\uff0c\u957f\u8ddd\u79bb\u4f20\u8f93\u7cfb\u7edf\u4e2d\u524d\u7aef\u7684EDFA\u548c\u4e2d\u95f4\u8de8\u63a5\u7684EYDFA\uff09\uff0c\u566a\u58f0\u7cfb\u6570\u4f1a\u5408\u5e76\u3002\u5728\u5149\u4fe1\u53f7\u4e2d\uff0c\u7ea7\u8054\u8fc7\u7a0b\u5982\u4e0b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">NF_total \u2248 NF<sub>1<\/sub> + (NF<sub>2<\/sub> \u2212 1) \/ G<sub>1<\/sub><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e\u4e24\u4e2a\u589e\u76ca\u4e3a 22 dB\u3001NF \u4e3a 100% \u7684\u653e\u5927\u5668<sub>1<\/sub> = 4.5 dB \u548c NF<sub>2<\/sub> = 5.5 dB\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>NF<sub>1<\/sub> \u7ebf\u6027 = 2.82<\/li>\n\n\n\n<li>NF<sub>2<\/sub> \u7ebf\u6027 = 3.55<\/li>\n\n\n\n<li>G<sub>1<\/sub> \u7ebf\u6027 = 158<\/li>\n\n\n\n<li>NF_total = 2.82 + (3.55 \u2212 1) \/ 158 = 2.82 + 0.016 = 2.84 \u7ebf\u6027\u8fd1\u4f3c <strong>4.53 \u5206\u8d1d<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b2c\u4e00\u4e2a\u653e\u5927\u5668\u4e3b\u5bfc\u7ea7\u8054\u3002\u63d0\u9ad8\u566a\u58f0\u7cfb\u6570<sub>1<\/sub> \u63d0\u9ad8 0.5 dB \u6bd4\u63d0\u9ad8\u566a\u58f0\u7cfb\u6570\u66f4\u6709\u4ef7\u503c<sub>2<\/sub> \u964d\u4f4e 2 \u5206\u8d1d\u3002\u6709\u5173\u90e8\u7f72\u6307\u5357\uff0c\u8bf7\u53c2\u9605 <a href=\"https:\/\/www.premlink.net\/zh\/wdm-pon-edfa-eydfa\/\">WDM PON EDFA\/EYDFA\u5e73\u53f0<\/a>.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"680\" height=\"207\" src=\"https:\/\/www.premlink.net\/wp-content\/uploads\/2026\/06\/PL2000C-EDFA-XGS-PON-PASS-THROUGH.webp\" alt=\"PL2000C EDFA XGS-PON \u76f4\u901a\uff0c\u566a\u58f0\u7cfb\u6570\" class=\"wp-image-17648\" srcset=\"https:\/\/www.premlink.net\/wp-content\/uploads\/2026\/06\/PL2000C-EDFA-XGS-PON-PASS-THROUGH.webp 680w, https:\/\/www.premlink.net\/wp-content\/uploads\/2026\/06\/PL2000C-EDFA-XGS-PON-PASS-THROUGH-300x91.webp 300w, https:\/\/www.premlink.net\/wp-content\/uploads\/2026\/06\/PL2000C-EDFA-XGS-PON-PASS-THROUGH-18x5.webp 18w, https:\/\/www.premlink.net\/wp-content\/uploads\/2026\/06\/PL2000C-EDFA-XGS-PON-PASS-THROUGH-500x152.webp 500w\" sizes=\"(max-width: 680px) 100vw, 680px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u4e3a\u4ec0\u4e48\u566a\u58f0\u7cfb\u6570\u89c4\u683c\u662f\u5728 0 dBm \u8f93\u5165\u4e0b\u6d4b\u91cf\u7684<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6d4b\u91cf\u4f9d\u636e\u4ee5\u4e0b\u4e24\u4e2a\u6807\u51c6\uff1a <strong><a href=\"https:\/\/webstore.iec.ch\/en\/publication\/69271\" target=\"_blank\" rel=\"noopener\">IEC 61290-1<\/a><\/strong> \u9002\u7528\u4e8e\u901a\u7528\u5149\u653e\u5927\u5668\u548c <strong>Telcordia GR-1312-CORE<\/strong> \u9002\u7528\u4e8e\u7535\u4fe1\u7ea7EDFA\u3002\u4e24\u8005\u90fd\u89c4\u5b9a\u4e86\u8f93\u5165\u4fe1\u53f7\u4e3a <strong>0 dBm (1 mW)<\/strong> \u8f93\u5165\u5230\u88ab\u6d4b\u653e\u5927\u5668\u4e2d\u3002\u8fd9\u4e2a\u6570\u5b57\u83b7\u80dc\u662f\u6709\u5b9e\u9645\u539f\u56e0\u7684\uff0c\u5e76\u975e\u968f\u610f\u9009\u62e9\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">0 dBm \u4e3a\u53c2\u8003\u503c\u7684\u4e09\u4e2a\u539f\u56e0<\/h3>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u9ad8\u4e8e\u6d4b\u91cf\u5730\u9762\u3002.<\/strong> \u5149\u9891\u8c31\u5206\u6790\u4eea\u548c\u566a\u58f0\u7cfb\u6570\u6d4b\u8bd5\u53f0\u5728 0.1 nm \u5206\u8fa8\u7387\u4e0b\uff0c\u6b8b\u4f59\u566a\u58f0\u57fa\u5e95\u7ea6\u4e3a -65 \u81f3 -70 dBm\u3002\u4f7f\u7528 0 dBm \u9a71\u52a8\u653e\u5927\u5668\u53ef\u4f7f\u8f93\u51fa\u8fdc\u9ad8\u4e8e\u8be5\u57fa\u5e95\uff0c\u56e0\u6b64\u566a\u58f0\u7cfb\u6570\u7684\u8ba1\u7b97\u4e0d\u53d7\u4eea\u5668\u566a\u58f0\u7684\u9650\u5236\u3002.<\/li>\n\n\n\n<li><strong>\u4f4e\u4e8e\u589e\u76ca\u538b\u7f29\u3002.<\/strong> \u8f93\u5165\u529f\u7387\u4f4e\u4e8e\u7ea6 -3 dBm \u65f6\uff0cEDFA \u5f00\u59cb\u504f\u79bb\u5c0f\u4fe1\u53f7\u5de5\u4f5c\u533a\u3002\u6cf5\u6d66\u529f\u7387\u65e0\u6cd5\u5b8c\u5168\u88ab\u4fe1\u53f7\u6d88\u8017\uff0c\u53cd\u8f6c\u7279\u6027\u968f\u8f93\u5165\u529f\u7387\u7684\u53d8\u5316\u800c\u53d8\u5316\u3002\u566a\u58f0\u7cfb\u6570 (NF) \u968f\u7740\u8f93\u5165\u529f\u7387\u7684\u4e0b\u964d\u800c\u4e0a\u5347\u3002.<\/li>\n\n\n\n<li><strong>\u4f4e\u4e8e\u9971\u548c\u5ea6\u3002.<\/strong> \u8f93\u5165\u4fe1\u53f7\u8d85\u8fc7\u7ea6 +3 dBm \u65f6\uff0c\u589e\u76ca\u9971\u548c\u73b0\u8c61\u5f00\u59cb\u51fa\u73b0\u3002\u653e\u5927\u5668\u65e0\u6cd5\u7ef4\u6301\u5176\u5c0f\u4fe1\u53f7\u589e\u76ca\uff0c\u8f93\u51fa\u529f\u7387\u51fa\u73b0\u524a\u6ce2\uff0c\u566a\u58f0\u7cfb\u6570\u8ba1\u7b97\u5931\u6548\u30020 dBm \u8fdc\u4f4e\u4e8e\u8be5\u4e34\u754c\u70b9\u3002.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">0 dBm \u662f\u566a\u58f0\u7cfb\u6570 (NF) \u503c\u6700\u4f4e\u4e14\u5728\u4e0d\u540c\u8bbe\u5907\u3001\u5382\u5546\u548c\u6d4b\u8bd5\u5e73\u53f0\u4e0a\u5747\u53ef\u91cd\u590d\u7684\u201c\u6700\u4f73\u70b9\u201d\u3002\u5382\u5546\u4f1a\u516c\u5e03\u566a\u58f0\u7cfb\u6570 (NF) \u503c\u3002 <em>\u8f93\u5165\u529f\u7387\u4e3a 0 dBm<\/em> \u6b63\u56e0\u5982\u6b64\uff0c\u5b9e\u9645\u524d\u7aef\u8f93\u5165\u4fe1\u53f7\u901a\u5e38\u5728 -10 dBm \u5230 -3 dBm \u4e4b\u95f4\uff0c\u6240\u4ee5\u6570\u636e\u624b\u518c\u4e2d\u7684\u6570\u503c\u662f\u4fdd\u5b88\u7684\u6700\u4f73\u60c5\u51b5\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">EDFA \u4e0e EYDFA\uff1a\u566a\u58f0\u7cfb\u6570\u7684\u660e\u663e\u6743\u8861<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e24\u79cd\u653e\u5927\u5668\u5747\u4e3a\u63ba\u6742\u5149\u7ea4\u5668\u4ef6\uff0c\u4f46\u63ba\u6742\u65b9\u5f0f\u548c\u6cf5\u6d66\u7ed3\u6784\u4e0d\u540c\u3002\u6b63\u662f\u8fd9\u79cd\u5dee\u5f02\u5bfc\u81f4\u5b83\u4eec\u7684\u566a\u58f0\u7cfb\u6570\u89c4\u683c\u4e5f\u4e0d\u540c\u3002.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th class=\"has-text-align-left\" data-align=\"left\">\u53c2\u6570<\/th><th class=\"has-text-align-left\" data-align=\"left\">EDFA<\/th><th class=\"has-text-align-left\" data-align=\"left\">\u5982\uff1aEYDFA\uff0c<\/th><\/tr><\/thead><tbody><tr><td>\u6d3b\u6027\u7ea4\u7ef4<\/td><td>\u63ba\u94d2\u5355\u5305\u5c42<\/td><td>\u94d2\u9571\u5171\u63ba\u6742\u53cc\u5305\u5c42<\/td><\/tr><tr><td>\u6cf5\u6d66\u6ce2\u957f<\/td><td>980\u7eb3\u7c73<\/td><td>915\/940\u7eb3\u7c73\uff08\u591a\u6a21\uff09<\/td><\/tr><tr><td>\u8f93\u5165\u529f\u7387\u4e3a 0 dBm \u65f6\u7684\u5178\u578b\u566a\u58f0\u7cfb\u6570<\/td><td>4.0\u20134.5 \u5206\u8d1d<\/td><td>4.5\u20135.5 \u5206\u8d1d<\/td><\/tr><tr><td>\u5178\u578b\u5c0f\u4fe1\u53f7\u589e\u76ca<\/td><td>15\u201325 \u5206\u8d1d<\/td><td>20\u201330 \u5206\u8d1d<\/td><\/tr><tr><td>\u6700\u5927\u603b\u4ea7\u91cf<\/td><td>\u7ea6 27 dBm<\/td><td>27\u201333 dBm<\/td><\/tr><tr><td>\u6700\u4f73\u5339\u914d<\/td><td>CNR\u654f\u611f\u89c6\u9891\uff0c\u4e2d\u8ddd\u79bbFTTH<\/td><td>\u957f\u8ddd\u79bb\u914d\u9001\uff0c1:128+ \u5206\u5272\uff0c\u67a2\u7ebd\u6574\u5408<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">EYDFA \u7684\u566a\u58f0\u7cfb\u6570 (NF) \u6bd4 EDFA \u9ad8\u7ea6 0.5\u20131 dB \u7684\u539f\u56e0\u5728\u4e8e\u5176\u6cf5\u6d66\u7ed3\u6784\u3002EDFA \u4f7f\u7528\u5355\u6a21 980 nm \u6cf5\u6d66\u5149\uff0c\u8be5\u6cf5\u6d66\u5149\u5728\u94d2\u5438\u6536\u5e26\u5185\u88ab\u5b8c\u5168\u5438\u6536\uff0c\u4ece\u800c\u5b9e\u73b0\u9ad8\u7c92\u5b50\u6570\u53cd\u8f6c\u3002EYDFA \u4f7f\u7528\u591a\u6a21 915\/940 nm \u6cf5\u6d66\u5149\u4ee5\u83b7\u5f97\u66f4\u9ad8\u7684\u603b\u529f\u7387\uff0c\u800c\u9571\u5230\u94d2\u7684\u8f6c\u6362\u4f1a\u5f15\u5165\u4e00\u4e2a\u5fae\u5c0f\u7684\u91cf\u5b50\u7f3a\u9677\uff0c\u8868\u73b0\u4e3a\u989d\u5916\u7684\u81ea\u53d1\u8f90\u5c04\u653e\u5927 (ASE)\u3002\u6b63\u662f\u8fd9\u989d\u5916\u7684 ASE \u4f7f NF \u63d0\u9ad8\u4e86\u7ea6 0.5 dB\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8fd9\u79cd\u6743\u8861\u662f\u6709\u5229\u7684\uff1a\u727a\u7272\u7ea6 0.5\u20131 dB \u7684\u566a\u58f0\u7cfb\u6570 (NF) \u53ef\u83b7\u5f97\u7ea6 5\u201310 dB \u7684\u603b\u8f93\u51fa\u529f\u7387\u3002\u5728\u957f\u8ddd\u79bb\u5149\u7ea4\u5230\u6237 (FTTH) \u6216\u5c04\u9891\u5149\u7ea4 (RFoG) \u7f51\u7edc\u4e2d\uff0c\u989d\u5916\u7684\u529f\u7387\u51e0\u4e4e\u603b\u662f\u503c\u5f97\u727a\u7272\u566a\u58f0\u7cfb\u6570\u3002Premlink \u7684 <a href=\"https:\/\/www.premlink.net\/zh\/catv-edfa-eydfa\/\">CATV EDFA\/EYDFA\u5e73\u53f0<\/a> \u63d0\u4f9b\u4e24\u79cd\u62d3\u6251\u7ed3\u6784\uff0cNF\u66f2\u7ebf\u5df2\u53d1\u5e03\u5728\u4ea7\u54c1\u9875\u9762\u4e0a\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5f71\u54cd\u566a\u58f0\u7cfb\u6570\u7684\u4e94\u4e2a\u8bbe\u8ba1\u56e0\u7d20<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>\u6cf5\u6d66\u6ce2\u957f\u3002.<\/strong> 980 nm \u6cf5\u6d66\u5149\u7684\u566a\u58f0\u7cfb\u6570\u6bd4 1480 nm \u6cf5\u6d66\u5149\u4f4e\u7ea6 0.5 dB\uff0c\u56e0\u4e3a\u5176\u53cd\u8f6c\u5206\u5e03\u66f4\u5b8c\u6574\u3002EYDFA \u591a\u6a21\u6cf5\u6d66\u5149\u7684\u6027\u80fd\u4ecb\u4e8e\u4e24\u8005\u4e4b\u95f4\u3002.<\/li>\n\n\n\n<li><strong>\u6c34\u6cf5\u529f\u7387\u4f59\u91cf\u3002.<\/strong> \u66f4\u9ad8\u7684\u6cf5\u6d66\u529f\u7387\u4f1a\u4f7f\u7c92\u5b50\u6570\u53cd\u8f6c\u8fdb\u4e00\u6b65\u8d85\u8fc7\u9608\u503c\uff0c\u4ece\u800c\u964d\u4f4eNF\u503c\u3002\u6cf5\u6d66\u4e0d\u8db3\u7684EDFA\u7684NF\u503c\u660e\u663e\u4f4e\u4e8e\u6cf5\u6d66\u5145\u8db3\u7684EDFA\u3002.<\/li>\n\n\n\n<li><strong>\u6709\u6548\u7ea4\u7ef4\u957f\u5ea6\u3002.<\/strong> \u8fc7\u77ed \u2192 \u53cd\u8f6c\u4e0d\u5b8c\u5168\uff0c\u589e\u76ca\u4f4e\uff0c\u566a\u58f0\u7cfb\u6570\u9ad8\u3002\u8fc7\u957f \u2192 ASE \u5728\u672a\u6cf5\u6d66\u5c3e\u90e8\u88ab\u91cd\u65b0\u5438\u6536\uff0c\u566a\u58f0\u7cfb\u6570\u518d\u6b21\u5347\u9ad8\u3002\u6bcf\u4e2a\u589e\u76ca\u76ee\u6807\u90fd\u6709\u4e00\u4e2a\u6700\u4f73\u957f\u5ea6\uff0c\u8fd9\u4e5f\u662f\u5382\u5546\u5728\u751f\u4ea7\u4e2d\u8c03\u6574\u7684\u53c2\u6570\u3002.<\/li>\n\n\n\n<li><strong>\u5de5\u4f5c\u6e29\u5ea6\u3002.<\/strong> \u566a\u58f0\u7cfb\u6570 (NF) \u4f1a\u968f\u7740\u6e29\u5ea6\u5347\u9ad8\u800c\u589e\u52a0\uff0c\u6bcf\u9ad8\u4e8e 25\u00b0C \u53c2\u8003\u6e29\u5ea6 10\u00b0C\uff0cNF \u503c\u5927\u7ea6\u4e0a\u5347 0.1 dB\u3002\u590f\u5b63\u6237\u5916\u673a\u67dc\u9700\u8981\u6839\u636e\u6e29\u5ea6\u964d\u4f4e\u566a\u58f0\u7cfb\u6570\u3002.<\/li>\n\n\n\n<li><strong>\u8f93\u5165\u529f\u7387\u3002.<\/strong> \u566a\u58f0\u7cfb\u6570 (NF) \u7684\u6807\u79f0\u8f93\u5165\u529f\u7387\u4e3a 0 dBm\u3002\u4f4e\u4e8e\u6b64\u503c\uff0c\u566a\u58f0\u7cfb\u6570\u4f1a\u4e0a\u5347\u3002\u9ad8\u4e8e\u6b64\u503c\uff0c\u5219\u4f1a\u51fa\u73b0\u9971\u548c\u73b0\u8c61\u3002\u52a1\u5fc5\u9605\u8bfb\u6570\u636e\u624b\u518c\u4e2d\u7684\u566a\u58f0\u7cfb\u6570\u4e0e\u8f93\u5165\u529f\u7387\u66f2\u7ebf\uff0c\u800c\u4e0d\u4ec5\u4ec5\u662f\u6807\u79f0\u6570\u503c\u3002.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">\u566a\u58f0\u7cfb\u6570\u5bf9\u5b9e\u9645\u7f51\u7edc\u573a\u666f\u7684\u5f71\u54cd<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">FTTH 1:64 \u5206\u9891\uff0c\u4e2d\u8ddd\u79bb<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u572810\u516c\u91cc\u9988\u7ebf\u4e0a\u4f7f\u752822 dBm\u7684EDFA\u65f6\uff0c\u566a\u58f0\u7cfb\u6570\u5f88\u5c11\u6210\u4e3a\u9650\u5236\u56e0\u7d20\u30024.5 dB\u7684\u566a\u58f0\u7cfb\u6570\u4e3a\u89c6\u9891\u548c\u6570\u636e\u4e1a\u52a1\u90fd\u63d0\u4f9b\u4e86\u5145\u8db3\u7684\u4fe1\u566a\u6bd4\u88d5\u91cf\u3002\u5927\u591a\u6570\u6807\u51c6\u914d\u7f6e\u90fd\u80fd\u6ee1\u8db3\u8fd9\u4e9b\u8981\u6c42\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1:128 \u5206\u5272\u7ebf\u548c RFoG<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u66f4\u5c0f\u7684\u5206\u9891\u70b9\u4f7f\u63a5\u6536\u673a\u66f4\u63a5\u8fd1\u5176\u7075\u654f\u5ea6\u4e0b\u9650\u3002\u566a\u58f0\u7cfb\u6570\u4ece\u6b21\u8981\u56e0\u7d20\u53d8\u4e3a\u4e3b\u8981\u6307\u6807\u30024.5 dB EDFA \u5728\u6b64\u65b9\u9762\u4f18\u4e8e 5.5 dB EYDFA\uff0c\u5373\u4f7f\u5b83\u727a\u7272\u4e86\u4e00\u4e9b\u8f93\u51fa\u529f\u7387\u3002\u53c2\u89c1\u2026\u2026 <a href=\"https:\/\/www.premlink.net\/zh\/wdm-pon-edfa-eydfa\/\">WDM PON EDFA\/EYDFA\u5e73\u53f0<\/a> \u9002\u7528\u4e8e\u9ad8\u5206\u5c4f\u914d\u7f6e\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u7ea7\u8054\u5f0f\u957f\u9014\u4f20\u8f93\uff0c\u5e26\u4e2d\u8de8\u653e\u5927\u5668<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e24\u4e2a\u653e\u5927\u5668\u4e32\u8054\uff0c\u6bcf\u4e2a\u653e\u5927\u5668\u90fd\u4f1a\u4ea7\u751f\u566a\u58f0\u7cfb\u6570\u3002\u5982\u4e0a\u7ea7\u8054\u7535\u8def\u6240\u793a\uff0c\u7b2c\u4e00\u4e2a\u653e\u5927\u5668\u7684\u5f71\u54cd\u6700\u5927\u3002\u9009\u62e9\u524d\u7aef\u653e\u5927\u5668\u566a\u58f0\u7cfb\u6570\u8f83\u4f4e\u7684\u5355\u5143\uff0c\u5982\u679c\u9700\u8981\u989d\u5916\u7684\u529f\u7387\uff0c\u53ef\u4ee5\u63a5\u53d7\u4e2d\u95f4\u653e\u5927\u5668\u566a\u58f0\u7cfb\u6570\u7565\u9ad8\u4e00\u4e9b\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">DAA \u548c DOCSIS 4.0 R-PHY<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">1.2\/1.8 GHz \u5c04\u9891\u4fe1\u53f7\u4f1a\u5c06\u66f4\u591a\u8f7d\u6ce2\u538b\u7f29\u5230\u76f8\u540c\u7684\u5149\u5e26\u5bbd\u5185\u3002\u6bcf\u4e2a\u8f7d\u6ce2\u90fd\u4f1a\u589e\u52a0\u63a5\u6536\u7aef\u7684\u566a\u58f0\u57fa\u5e95\u3002\u5bf9\u4e8e 1 GHz QAM \u8c03\u5236\u6765\u8bf4\u53ef\u4ee5\u63a5\u53d7\u7684\u566a\u58f0\u7cfb\u6570\uff0c\u5bf9\u4e8e 1.8 GHz \u8c03\u5236\u5219\u4e0d\u518d\u9002\u7528\u3002\u5e94\u5bfb\u627e\u5de5\u4f5c\u589e\u76ca\u4e0b\u566a\u58f0\u7cfb\u6570 \u2264 4.5 dB \u7684\u63ba\u94d2\u5149\u7ea4\u653e\u5927\u5668 (EDFA)\uff0c\u5e76\u68c0\u67e5\u5176\u5728 1540\u20131565 nm \u6ce2\u957f\u8303\u56f4\u5185\u7684\u566a\u58f0\u7cfb\u6570\u4e0e\u6ce2\u957f\u5173\u7cfb\u7684\u5e73\u5766\u5ea6\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5982\u4f55\u9605\u8bfb\u566a\u58f0\u7cfb\u6570\u6570\u636e\u8868<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u6253\u5f00EDFA\u6216EYDFA\u6570\u636e\u624b\u518c\u65f6\uff0c\u566a\u58f0\u7cfb\u6570\u901a\u5e38\u53ea\u6709\u4e00\u4e2a\u6570\u5b57\u3002\u4f46\u8fd9\u4e00\u4e2a\u6570\u5b57\u662f\u4e0d\u591f\u7684\u3002\u5728\u76f8\u4fe1\u89c4\u683c\u8bf4\u660e\u4e4b\u524d\uff0c\u81f3\u5c11\u8981\u68c0\u67e5\u4ee5\u4e0b\u56db\u70b9\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u6d4b\u91cf NF \u65f6\u7684\u8f93\u5165\u529f\u7387\u3002.<\/strong> \u5e94\u8be5\u4e3a 0 dBm\u3002\u5982\u679c\u4e0d\u662f\uff0c\u8bf7\u8be2\u95ee\u539f\u56e0\u3002.<\/li>\n\n\n\n<li><strong>NF \u6d4b\u91cf\u65f6\u7684\u589e\u76ca\u3002.<\/strong> \u566a\u58f0\u7cfb\u6570\u53d6\u51b3\u4e8e\u589e\u76ca\u8bbe\u7f6e\u3002\u8bf7\u786e\u8ba4\u89c4\u683c\u53c2\u6570\u662f\u5728\u60a8\u5b9e\u9645\u90e8\u7f72\u73af\u5883\u7684\u589e\u76ca\u8bbe\u7f6e\u4e0b\u5f97\u51fa\u7684\u3002.<\/li>\n\n\n\n<li><strong>\u6ce2\u957f\u3002.<\/strong> C\u6ce2\u6bb5\u7684\u566a\u58f0\u7cfb\u6570\uff08NF\uff09\u5404\u4e0d\u76f8\u540c\u3002\u6700\u4f4e\u566a\u58f0\u7cfb\u6570\u901a\u5e38\u57281550\u7eb3\u7c73\u9644\u8fd1\uff1b\u6700\u5dee\u7684\u566a\u58f0\u7cfb\u6570\u51fa\u73b0\u57281540\u7eb3\u7c73\u5904\u3002\u8bf7\u52a1\u5fc5\u67e5\u770b\u6570\u636e\u624b\u518c\uff0c\u786e\u8ba4\u5176\u4e2d\u660e\u786e\u6807\u660e\u4e86\u6ce2\u957f\u3002.<\/li>\n\n\n\n<li><strong>\u6e29\u5ea6\u3002.<\/strong> \u5546\u7528\u7ea7\u6570\u636e\u624b\u518c\u6807\u660e\u7684\u5de5\u4f5c\u6e29\u5ea6\u4e3a 25\u00b0C\u3002\u6237\u5916\u673a\u67dc\u7684\u5de5\u4f5c\u6e29\u5ea6\u66f4\u9ad8\u3002\u8bf7\u67e5\u770b\u529f\u7387\u56e0\u6570\u4e0e\u6e29\u5ea6\u7684\u5173\u7cfb\u66f2\u7ebf\u6216\u6e29\u5ea6\u964d\u989d\u540e\u7684\u89c4\u683c\u53c2\u6570\u3002.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Premlink\u7684 <a href=\"https:\/\/www.premlink.net\/zh\/catv-edfa-eydfa\/\">CATV EDFA\/EYDFA \u4ea7\u54c1\u7cfb\u5217<\/a> \u968f\u9644\u6570\u636e\u624b\u518c\u4e2d\u516c\u5e03\u7684\u6240\u6709\u56db\u4e2a\u6570\u503c\uff0c\u4ee5\u53ca\u566a\u58f0\u7cfb\u6570\u4e0e\u8f93\u5165\u529f\u7387\u548c\u6ce2\u957f\u7684\u5173\u7cfb\u66f2\u7ebf\u3002 <a href=\"https:\/\/www.premlink.net\/zh\/product\/xgspon-edfa\/\">XGS-PON EDFA \u4ea7\u54c1\u9875\u9762<\/a> \u5217\u51fa\u4e86 XGS-PON \u76f4\u901a\u53d8\u4f53\u7684\u76f8\u540c\u66f2\u7ebf\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5c55\u671b\u672a\u6765\uff1a\u4e0b\u4e00\u4ee3\u653e\u5927\u5668\u7684\u566a\u58f0\u7cfb\u6570<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">2026 \u5e74\u53ca\u4ee5\u540e\uff0c\u6709\u4e09\u5927\u8d8b\u52bf\u5c06\u5bfc\u81f4 NF \u4e0b\u964d\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b2c\u4e00\u7684\uff0c, <strong>\u6cf5\u6d66\u6fc0\u5149\u7cbe\u70bc<\/strong>. 980 nm\u6cf5\u6d66\u4e8c\u6781\u7ba1\u7684\u76f8\u5bf9\u5f3a\u5ea6\u566a\u58f0\uff08RIN\uff09\u964d\u4f4e\uff0c\u529f\u7387\u63d0\u9ad8\u3002\u8fd9\u79cd\u7ec4\u5408\u63d0\u9ad8\u4e86\u53cd\u8f6c\u57fa\u5e95\uff0c\u5e76\u5728\u76f8\u540c\u589e\u76ca\u4e0b\u5c06\u566a\u58f0\u7cfb\u6570\uff08NF\uff09\u964d\u4f4e\u4e86\u7ea60.2 dB\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b2c\u4e8c\uff0c, <strong>\u6d3b\u6027\u7ea4\u7ef4\u8bbe\u8ba1<\/strong>. \u9650\u57df\u63ba\u6742\u94d2\u5149\u7ea4\u5c06\u94d2\u79bb\u5b50\u96c6\u4e2d\u5728\u7ea4\u82af\u4e2d\u5fc3\u3002\u5176\u7ed3\u679c\u662f\u5355\u4f4d\u957f\u5ea6\u589e\u76ca\u66f4\u9ad8\uff0c\u8fd9\u610f\u5473\u7740\u6700\u4f73\u5149\u7ea4\u957f\u5ea6\u66f4\u77ed\uff0c\u4ece\u800c\u51cf\u5c11\u4e86\u81ea\u53d1\u8f90\u5c04\u5438\u6536\uff08ASE\uff09\u3002\u5546\u7528\u9650\u57df\u63ba\u6742\u94d2\u5149\u7ea4\u653e\u5927\u5668\uff08EDFA\uff09\u57280 dBm\u8f93\u5165\u4fe1\u53f7\u4e0b\u53ef\u8fbe\u5230\u7ea63.8 dB\u7684\u566a\u58f0\u7cfb\u6570\uff08NF\uff09\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7b2c\u4e09\uff0c, <strong>\u76d1\u63a7\u96c6\u6210<\/strong>. \u73b0\u4ee3EDFA\u5305\u542b\u57fa\u4e8e\u8f93\u5165\u548c\u8f93\u51fa\u62bd\u5934\u5149\u7535\u4e8c\u6781\u7ba1\u7684\u7aef\u53e3\u566a\u58f0\u7cfb\u6570\uff08NF\uff09\u4f30\u7b97\u529f\u80fd\u3002\u867d\u7136\u8be5\u4f30\u7b97\u4e0d\u5982\u57fa\u51c6\u6d4b\u91cf\u7cbe\u786e\uff0c\u4f46\u5b83\u53ef\u4ee5\u8ba9\u7f51\u7edc\u7ba1\u7406\u7cfb\u7edf\uff08NMS\uff09\u5728\u7528\u6237\u5bdf\u89c9\u4e4b\u524d\u6807\u8bb0\u51fa\u6027\u80fd\u4e0b\u964d\u7684\u653e\u5927\u5668\u3002Premlink\u7684\u653e\u5927\u5668\u673a\u67b6\u901a\u8fc7SNMP\u516c\u5f00\u566a\u58f0\u7cfb\u6570\u8d8b\u52bf\u6570\u636e\u2014\u2014\u53c2\u89c1[\u6b64\u5904]\u3002 <a href=\"https:\/\/www.premlink.net\/zh\/wdm-pon-edfa-eydfa\/\">WDM PON EDFA\/EYDFA\u5e73\u53f0<\/a> \u6709\u5173 MIB \u7684\u8be6\u7ec6\u4fe1\u606f\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5e38\u89c1\u95ee\u9898\u89e3\u7b54<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Q1. \u4ec0\u4e48\u662fEDFA\u7684\u566a\u58f0\u7cfb\u6570\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u566a\u58f0\u7cfb\u6570 (NF) \u662f\u8f93\u5165\u4fe1\u566a\u6bd4 (SNR) \u4e0e\u8f93\u51fa\u4fe1\u566a\u6bd4\u7684\u6bd4\u503c\uff0c\u4ee5\u5206\u8d1d (dB) \u4e3a\u5355\u4f4d\u3002\u5b83\u53cd\u6620\u4e86\u653e\u5927\u5668\u5bf9\u4fe1\u53f7\u8d28\u91cf\u7684\u635f\u8017\u7a0b\u5ea6\u3002\u5bf9\u4e8e\u5178\u578b\u7684\u63ba\u94d2\u5149\u7ea4\u653e\u5927\u5668\uff0c\u5728 0 dBm \u8f93\u5165\u4fe1\u53f7\u4e0b\uff0c\u566a\u58f0\u7cfb\u6570\u4e3a 4.0\u20134.5 dB\u3002\u5bf9\u4e8e\u63ba\u94d2\u9571\u5149\u7ea4\u653e\u5927\u5668 (EYDFA)\uff0c\u566a\u58f0\u7cfb\u6570\u4e3a 4.5\u20135.5 dB\u3002\u5b8c\u6574\u7684\u89c4\u683c\u53c2\u6570\u8bf7\u53c2\u89c1 Premlink \u7684\u4ea7\u54c1\u624b\u518c\u3002 <a href=\"https:\/\/www.premlink.net\/zh\/catv-edfa-eydfa\/\">CATV EDFA\/EYDFA \u4ea7\u54c1\u9875\u9762<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q2. \u4e3a\u4ec0\u4e48\u566a\u58f0\u7cfb\u6570\u662f\u5728 0 dBm \u8f93\u5165\u4e0b\u6d4b\u91cf\u7684\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">IEC 61290-1 \u548c Telcordia GR-1312-CORE \u6807\u51c6\u5747\u89c4\u5b9a\u566a\u58f0\u7cfb\u6570 (NF) \u6d4b\u91cf\u91c7\u7528 0 dBm \u8f93\u5165\u30020 dBm \u5904\u4e8e\u7ebf\u6027\u975e\u9971\u548c\u72b6\u6001\uff1a\u65e2\u8db3\u4ee5\u6e05\u9664\u5149\u9891\u8c31\u5206\u6790\u4eea\u7684\u566a\u58f0\u57fa\u5e95\uff0c\u53c8\u8db3\u4ee5\u907f\u514d\u589e\u76ca\u538b\u7f29\u548c\u9971\u548c\u3002\u56e0\u6b64\uff0c0 dBm \u4e0b\u7684 NF \u503c\u662f\u5382\u5546\u80fd\u591f\u4fdd\u8bc1\u7684\u6700\u4f73\u53ef\u91cd\u590d\u6027\u6307\u6807\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q3. \u566a\u58f0\u7cfb\u6570\u5982\u4f55\u5f71\u54cd\u89c6\u9891CNR\u8d28\u91cf\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u6bcf\u589e\u52a0 1 dB \u7684\u566a\u58f0\u7cfb\u6570 (NF)\uff0c\u5149\u63a5\u6536\u7aef\u7684\u4fe1\u566a\u6bd4 (CNR) \u5c31\u4f1a\u964d\u4f4e\u7ea6 1 dB\u3002\u5728\u76f8\u540c\u7684\u8f93\u5165\u529f\u7387\u4e0b\uff0c4.5 dB NF \u7684\u63ba\u94d2\u5149\u7ea4\u653e\u5927\u5668 (EDFA) \u6bd4 5.5 dB NF \u7684\u94d2\u500d\u589e\u5149\u7ea4\u653e\u5927\u5668 (EYDFA) \u80fd\u63d0\u4f9b\u660e\u663e\u66f4\u6e05\u6670\u7684\u89c6\u9891\u8f7d\u6ce2\u3002\u5728\u5bf9\u4fe1\u566a\u6bd4\u8981\u6c42\u8f83\u9ad8\u7684 256-QAM \u6216 1.8 GHz DOCSIS 4.0 \u7cfb\u7edf\u4e2d\uff0c\u566a\u58f0\u7cfb\u6570\u662f\u4e3b\u8981\u7684\u67b6\u6784\u8bbe\u8ba1\u7ea6\u675f\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q4. EDFA \u4e0e EYDFA\u2014\u2014\u54ea\u4e2a\u566a\u58f0\u7cfb\u6570\u66f4\u4f4e\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">EDFA \u7684\u566a\u58f0\u7cfb\u6570\u8f83\u4f4e\uff0c\u901a\u5e38\u5728 0 dBm \u8f93\u5165\u65f6\u4e3a 4.0\u20134.5 dB\u3002EYDFA \u727a\u7272\u4e86\u7ea6 0.5\u20131 dB \u7684\u566a\u58f0\u7cfb\u6570\uff0c\u6362\u53d6\u4e86\u7ea6 5\u201310 dB \u7684\u603b\u8f93\u51fa\u529f\u7387\u63d0\u5347\u3002\u8fd9\u79cd\u6743\u8861\u5728\u8fdc\u8ddd\u79bb\u6216\u9ad8\u5206\u8def\u5e94\u7528\u4e2d\u8f83\u4e3a\u6709\u5229\uff0c\u4f46\u5728\u5bf9 CNR \u8981\u6c42\u8f83\u9ad8\u7684\u89c6\u9891\u5206\u914d\u5e94\u7528\u4e2d\u5219\u4e0d\u592a\u7406\u60f3\u3002Premlink \u7684 <a href=\"https:\/\/www.premlink.net\/zh\/catv-edfa-eydfa\/\">CATV EDFA\/EYDFA \u7cfb\u5217<\/a> \u6db5\u76d6\u4e24\u79cd\u62d3\u6251\u7ed3\u6784\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q5. CATV EDFA \u7684\u826f\u597d\u566a\u58f0\u7cfb\u6570\u662f\u591a\u5c11\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e 1550 nm \u6ce2\u957f\u30011:64 \u5206\u5c4f\u6bd4\u4f8b\u7684\u5e7f\u64ad\u7ea7\u89c6\u9891\u4fe1\u53f7\uff0c\u5728 0 dBm \u8f93\u5165\u529f\u7387\u4e0b\uff0c\u566a\u58f0\u7cfb\u6570 (NF) \u2264 4.5 dB \u662f\u884c\u4e1a\u6807\u51c6\u3002\u5bf9\u4e8e 1:128 \u6216 1:256 \u5206\u5c4f\u6bd4\u4f8b\uff0c\u5efa\u8bae NF \u2264 4.5 dB\uff1b\u5982\u679c\u529f\u7387\u9884\u7b97\u5141\u8bb8\uff0c5.0 dB \u7684 NF \u4e5f\u53ef\u63a5\u53d7\u3002\u52a1\u5fc5\u67e5\u770b NF \u4e0e\u6ce2\u957f\u548c NF \u4e0e\u6e29\u5ea6\u7684\u5173\u7cfb\u66f2\u7ebf\uff0c\u800c\u4e0d\u4ec5\u4ec5\u662f\u770b\u6570\u503c\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q6. NF\u503c\u4f1a\u968f\u8f93\u5165\u529f\u7387\u53d8\u5316\u5417\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u662f\u7684\u3002\u566a\u58f0\u7cfb\u6570\u5728\u8f93\u5165\u4fe1\u53f7\u4e3a 0 dBm \u65f6\u8fbe\u5230\u6700\u5c0f\u503c\u3002\u4f4e\u4e8e 0 dBm\uff0c\u653e\u5927\u5668\u79bb\u5f00\u5c0f\u4fe1\u53f7\u5de5\u4f5c\u533a\uff0c\u566a\u58f0\u7cfb\u6570\u4e0a\u5347\u3002\u9ad8\u4e8e 0 dBm\uff0c\u589e\u76ca\u9971\u548c\u5f00\u59cb\u51fa\u73b0\uff0c\u566a\u58f0\u7cfb\u6570\u540c\u6837\u4e0a\u5347\u3002\u516c\u5e03\u7684 0 dBm \u8f93\u5165\u4fe1\u53f7\u4e0b\u7684\u89c4\u683c\u53c2\u6570\u662f\u6700\u4f73\u60c5\u51b5\u3002\u5b9e\u9645\u524d\u7aef\u5de5\u4f5c\u5728 -10 \u81f3 -3 dBm \u8f93\u5165\u4fe1\u53f7\u65f6\uff0c\u566a\u58f0\u7cfb\u6570\u4f1a\u6bd4\u89c4\u683c\u53c2\u6570\u9ad8\u51fa\u96f6\u70b9\u51e0 dB\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q7. \u7ea7\u8054\u653e\u5927\u5668\u4e2d\u7684\u566a\u58f0\u7cfb\u6570\u662f\u5982\u4f55\u7d2f\u79ef\u7684\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5bf9\u4e8e\u4e24\u4e2a\u4e32\u8054\u7684\u653e\u5927\u5668\uff0cNF_total \u2248 NF<sub>1<\/sub> + (NF<sub>2<\/sub> \u2212 1) \/ G<sub>1<\/sub> \u4ee5\u7ebf\u6027\u5355\u4f4d\u8868\u793a\u3002\u7b2c\u4e00\u4e2a\u653e\u5927\u5668\u5728\u7ea7\u8054\u4e2d\u8d77\u4e3b\u5bfc\u4f5c\u7528\uff1b\u7b2c\u4e8c\u4e2a\u653e\u5927\u5668\u7684\u8d21\u732e\u4ec5\u4e3a 1\/G\u3002<sub>1<\/sub>. .\u4e0eG<sub>1<\/sub> = 22 dB\uff0c5.5 dB \u7684\u7b2c\u4e8c\u7ea7\u566a\u58f0\u7cfb\u6570\u5bf9\u7ea7\u8054\u7684\u5f71\u54cd\u5c0f\u4e8e 0.02 dB\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Q8. \u566a\u58f0\u7cfb\u6570\u53ef\u4ee5\u5728\u73b0\u573a\u6d4b\u91cf\u5417\uff1f<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u53f0\u5f0f\u566a\u58f0\u7cfb\u6570 (NF) \u6d4b\u91cf\u4f7f\u7528\u53ef\u8c03\u8c10\u6fc0\u5149\u5668\u3001\u9891\u8c31\u5206\u6790\u4eea (OSA) \u548c\u6821\u51c6\u529f\u7387\u8ba1\uff0c\u6240\u6709\u6d4b\u91cf\u5747\u5728\u7b26\u5408 IEC 61290-1 \u6807\u51c6\u7684\u6761\u4ef6\u4e0b\u8fdb\u884c\u3002\u5728\u73b0\u573a\uff0c\u60a8\u53ef\u4ee5\u6839\u636e\u653e\u5927\u5668\u7684\u8f93\u5165\u548c\u8f93\u51fa\u62bd\u5934\u5149\u7535\u4e8c\u6781\u7ba1\u4ee5\u53ca\u5df2\u77e5\u7684\u8f93\u5165\u529f\u7387\u6765\u4f30\u7b97\u566a\u58f0\u7cfb\u6570\u3002\u4f30\u7b97\u7cbe\u5ea6\u7ea6\u4e3a \u00b1 0.5 dB\u2014\u2014\u8db3\u4ee5\u7528\u4e8e\u8d8b\u52bf\u76d1\u6d4b\uff0c\u4f46\u4e0d\u8db3\u4ee5\u6ee1\u8db3\u4f9b\u5e94\u5546\u9a8c\u6536\u6d4b\u8bd5\u7684\u8981\u6c42\u3002.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5173\u4e8e\u4f5c\u8005<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Premlink \u5149\u7f51\u7edc\u56e2\u961f\u4e3a ISP \u548c\u8fd0\u8425\u5546\u7f51\u7edc\u8bbe\u8ba1\u548c\u5236\u5b9a EDFA\u3001EYDFA \u548c WDM \u673a\u67b6\u5f0f\u4ea7\u54c1\u89c4\u683c\u3002Premlink \u7684\u4ea7\u54c1\u7ec4\u5408\u6db5\u76d6\uff1a <a href=\"https:\/\/www.premlink.net\/zh\/catv-edfa-eydfa\/\">CATV EDFA\/EYDFA\u5e73\u53f0<\/a>, \uff0c \u8fd9 <a href=\"https:\/\/www.premlink.net\/zh\/wdm-pon-edfa-eydfa\/\">WDM PON EDFA\/EYDFA\u5e73\u53f0<\/a>, \u4ee5\u53ca\u4e13\u804c\u4eba\u5458 <a href=\"https:\/\/www.premlink.net\/zh\/product\/xgspon-edfa\/\">XGS-PON EDFA \u4ea7\u54c1<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5173\u4e8e Premlink<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Premlink \u4e3a\u5bbd\u5e26\u63a5\u5165\u7f51\u7edc\u63d0\u4f9b\u5149\u653e\u5927\u548c\u6ce2\u957f\u7ba1\u7406\u4ea7\u54c1\u3002\u5982\u9700\u4ea7\u54c1\u6570\u636e\u8868\u6216\u8bbe\u8ba1\u652f\u6301\uff0c\u8bf7\u8bbf\u95ee <a href=\"https:\/\/www.premlink.net\/zh\/\">www.premlink.net<\/a>.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u6700\u540e\u66f4\u65b0\u65f6\u95f4\uff1a<\/strong> 2026\u5e746\u670810\u65e5<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u5ba1\u67e5\u4f9d\u636e\uff1a<\/strong> IEC 61290-1\uff08\u5149\u653e\u5927\u5668\u566a\u58f0\u7cfb\u6570\u6d4b\u91cf\u65b9\u6cd5\uff09\uff1bTelcordia GR-1312-CORE\uff08\u7535\u4fe1\u7ea7EDFA\u8ba4\u8bc1\uff09\uff1b25\u2103\u53c2\u8003\u6761\u4ef6\u4e0b\u7684\u5546\u7528EDFA\/EYDFA\u6570\u636e\u8868\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u53c2\u8003\u8d44\u6599\u53ca\u5ef6\u4f38\u9605\u8bfb\uff1a<\/strong> <a href=\"https:\/\/www.premlink.net\/zh\/catv-edfa-eydfa\/\">CATV EDFA\/EYDFA<\/a> \u00b7 <a href=\"https:\/\/www.premlink.net\/zh\/wdm-pon-edfa-eydfa\/\">WDM PON EDFA\/EYDFA<\/a> \u00b7 <a href=\"https:\/\/www.premlink.net\/zh\/product\/xgspon-edfa\/\">XGS-PON EDFA \u4ea7\u54c1\u9875\u9762<\/a>.<\/p>\n\n\n\n<script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\",\n    \"@type\": \"Article\",\n    \"headline\": \"EDFA Noise Figure Explained: Why It Matters for CATV and FTTH Amplifiers\",\n    \"description\": \"EDFA noise figure tells you how much signal-to-noise ratio an erbium-doped fiber amplifier costs you. It is the single number that decides whether your 1550 nm CATV link closes its CNR budget.\",\n    \"inLanguage\": \"en\",\n    \"datePublished\": \"2026-06-10\",\n    \"dateModified\": \"2026-06-10\",\n    \"author\": {\n        \"@type\": \"Organization\",\n        \"name\": \"Premlink Optical Networking Team\"\n    },\n    \"publisher\": {\n        \"@type\": \"Organization\",\n        \"name\": \"Premlink\",\n        \"url\": \"https:\\\/\\\/www.premlink.net\\\/\"\n    }\n}<\/script>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>EDFA noise figure tells you how much signal-to-noise ratio an erbium-doped fiber amplifier costs you. It is the single number [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":17163,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[46],"tags":[],"class_list":["post-17676","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-center"],"_links":{"self":[{"href":"https:\/\/www.premlink.net\/zh\/wp-json\/wp\/v2\/posts\/17676","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.premlink.net\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.premlink.net\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.premlink.net\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.premlink.net\/zh\/wp-json\/wp\/v2\/comments?post=17676"}],"version-history":[{"count":0,"href":"https:\/\/www.premlink.net\/zh\/wp-json\/wp\/v2\/posts\/17676\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.premlink.net\/zh\/wp-json\/wp\/v2\/media\/17163"}],"wp:attachment":[{"href":"https:\/\/www.premlink.net\/zh\/wp-json\/wp\/v2\/media?parent=17676"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.premlink.net\/zh\/wp-json\/wp\/v2\/categories?post=17676"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.premlink.net\/zh\/wp-json\/wp\/v2\/tags?post=17676"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}