{"id":4189,"date":"2026-02-07T15:05:46","date_gmt":"2026-02-07T07:05:46","guid":{"rendered":"https:\/\/laserdiode-ld.com\/?p=4189"},"modified":"2026-01-26T13:21:29","modified_gmt":"2026-01-26T05:21:29","slug":"1550nm-%e5%85%89%e7%ba%a4%e8%80%a6%e5%90%88%e5%85%89%e6%8e%a5%e6%94%b6%e5%99%a8%e5%92%8c%e5%b0%be%e7%ba%a4%e5%bc%95%e7%ba%bf%e5%b7%a5%e7%a8%8b%e8%ae%be%e8%ae%a1","status":"publish","type":"post","link":"https:\/\/laserdiode-ld.com\/zh\/1550nm-%e5%85%89%e7%ba%a4%e8%80%a6%e5%90%88%e5%85%89%e6%8e%a5%e6%94%b6%e5%99%a8%e5%92%8c%e5%b0%be%e7%ba%a4%e5%bc%95%e7%ba%bf%e5%b7%a5%e7%a8%8b%e8%ae%be%e8%ae%a1-html","title":{"rendered":"1550nm \u5149\u7ea4\u8026\u5408\u5149\u63a5\u6536\u5668\u548c\u5c3e\u7ea4 LED \u5de5\u7a0b\u8bbe\u8ba1"},"content":{"rendered":"

1550nm \u7535\u4fe1\u7a97\u53e3\uff1a\u4f4e\u635f\u8017\u4f20\u8f93\u7684\u7269\u7406\u57fa\u7840<\/h2>\n\n\n\n

\u5728\u5149\u5b50\u5b66\u7684\u5149\u8c31\u56fe\u4e2d\uff0c1550 \u7eb3\u7c73\u6ce2\u957f\u4ee3\u8868\u4e86\u957f\u8ddd\u79bb\u548c\u9ad8\u7cbe\u5ea6\u5149\u5b66\u7cfb\u7edf\u7684 \u201c\u9ec4\u91d1\u7a97\u53e3\u201d\u3002\u8fd9\u79cd\u504f\u597d\u5e76\u975e\u4efb\u610f\u800c\u4e3a\uff0c\u800c\u662f\u7531\u7845\u57fa\u73bb\u7483\u7684\u57fa\u672c\u7269\u7406\u7279\u6027\u51b3\u5b9a\u7684\u3002\u5728 1550nm \u5149\u7ea4<\/strong> \u5728\u751f\u6001\u7cfb\u7edf\u4e2d\uff0c\u8870\u51cf\u8fbe\u5230\u7406\u8bba\u4e0a\u7684\u6700\u5c0f\u503c\uff0c\u7ea6\u4e3a 0.2 dB\/km\uff0c\u8fd9\u4e3b\u8981\u662f\u7531\u4e8e\u745e\u5229\u6563\u5c04\uff08\u968f\u6ce2\u957f\u7684\u56db\u6b21\u65b9\u51cf\u5c0f\uff09\u548c\u5206\u5b50\u632f\u52a8\u7684\u7ea2\u5916\u5438\u6536\u4e4b\u95f4\u7684\u5e73\u8861\u3002.<\/p>\n\n\n\n

\u5bf9\u4e8e\u5f00\u53d1\u5148\u8fdb\u4f20\u611f\u6216\u901a\u4fe1\u786c\u4ef6\u7684\u5de5\u7a0b\u5e08\u6765\u8bf4\uff0c\u4ece\u8f83\u77ed\u6ce2\u957f\uff08\u5982 850nm \u6216 1310nm\uff09\u5230 1550 nm \u5149\u7ea4<\/a><\/strong> \u7cfb\u7edf\u7684\u9a71\u52a8\u529b\u4e0d\u4ec5\u4ec5\u662f\u4f4e\u635f\u8017\u3002\u4e0e\u53ef\u89c1\u5149\u8c31\u76f8\u6bd4\uff0c1550nm \u6ce2\u957f\u7684\u5149\u5728\u66f4\u9ad8\u529f\u7387\u6c34\u5e73\u4e0a\u662f \u201c\u5bf9\u773c\u775b\u5b89\u5168\u7684\u201d\uff0c\u56e0\u4e3a\u773c\u6db2\u4f1a\u5728\u80fd\u91cf\u5230\u8fbe\u89c6\u7f51\u819c\u4e4b\u524d\u5c06\u5176\u5438\u6536\u3002\u8fd9\u4f7f\u5f97\u6fc0\u5149\u96f7\u8fbe\u548c\u9065\u611f\u5e94\u7528\u4e2d\u7684\u53d1\u5c04\u529f\u7387\u66f4\u9ad8\u3002\u7136\u800c\uff0c\u5411 1550nm \u7684\u8f6c\u53d8\u9700\u8981\u6750\u6599\u79d1\u5b66\u7684\u5168\u9762\u8f6c\u53d8\uff0c\u4ece\u7845\u57fa\u63a2\u6d4b\u5668\u8f6c\u53d8\u4e3a\u7837\u5316\u9553\u94df\uff08InGaAs\uff09\uff0c\u4ee5\u7528\u4e8e\u6fc0\u5149\u96f7\u8fbe\u548c\u9065\u611f\u5e94\u7528\u3002 \u5149\u7ea4\u8026\u5408\u5149\u63a5\u6536\u5668<\/a><\/strong>, \u4ee5\u53ca\u7528\u4e8e\u5149\u6e90\u7684\u590d\u6742\u4e09\u5143\u6216\u56db\u5143\u534a\u5bfc\u4f53\u5408\u91d1\u3002.<\/p>\n\n\n

\n
\"\"<\/figure>\n<\/div>\n\n\n

\u63a2\u6d4b\u7269\u7406\u5b66\uff1a\u5149\u7ea4\u8026\u5408\u5149\u5b66\u63a5\u6536\u5668<\/h2>\n\n\n\n

C \u6ce2\u6bb5\u4fe1\u53f7\u6062\u590d\u7cfb\u7edf\u7684\u6838\u5fc3\u662f \u5149\u7ea4\u8026\u5408\u5149\u63a5\u6536\u5668<\/strong>. .\u4e0e\u4f53\u5149\u63a2\u6d4b\u5668\u4e0d\u540c\uff0c\u5149\u7ea4\u8026\u5408\u6a21\u5757\u5fc5\u987b\u6709\u6548\u5730\u5c06\u5355\u6a21\u5149\u7ea4\u7684 10 \u5fae\u7c73\u4ee5\u4e0b\u7ea4\u82af\u4e0e\u534a\u5bfc\u4f53\u6709\u6e90\u533a\u8fde\u63a5\u8d77\u6765\u3002\u8fd9\u4e00\u63a5\u53e3\u662f\u4fe1\u566a\u6bd4\uff08SNR\uff09\u9762\u4e34\u6700\u5927\u6311\u6218\u7684\u5730\u65b9\u3002.<\/p>\n\n\n\n

\u7837\u5316\u9553\u4e2d\u7684\u91cf\u5b50\u6548\u7387\u548c\u54cd\u5e94\u5ea6<\/h3>\n\n\n\n

InGaAs PIN \u5149\u7535\u4e8c\u6781\u7ba1\u7684\u68c0\u6d4b\u673a\u5236\u4f9d\u8d56\u4e8e\u5185\u90e8\u5149\u7535\u6548\u5e94\u3002\u5f53\u80fd\u91cf\u4e3a $E = h\\nu$ \u7684\u5149\u5b50\u649e\u51fb\u5230\u534a\u5bfc\u4f53\u7684\u672c\u5f81\u533a\u65f6\uff0c\u5b83\u5fc5\u987b\u6709\u8db3\u591f\u7684\u80fd\u91cf\u6765\u6865\u63a5\u5e26\u9699 $E_g$\u3002\u5bf9\u4e8e InGaAs \u6765\u8bf4\uff0c\u8fd9\u4e2a\u5e26\u9699\u88ab\u8bbe\u8ba1\u4e3a\u5927\u7ea6 0.75 eV\uff0c\u4f7f\u5176\u5bf9 1.0 \u81f3 1.7 \u5fae\u7c73\u8303\u56f4\u9ad8\u5ea6\u654f\u611f\u3002.<\/p>\n\n\n\n

\u63a5\u6536\u5668\u7684\u54cd\u5e94\u5ea6 $R$ \u662f\u4e00\u4e2a\u5173\u952e\u6307\u6807\uff0c\u5176\u5b9a\u4e49\u4e3a<\/p>\n\n\n\n

$$R = \\frac{eta q}{h \\nu} = \\frac{eta \\lambda}{1.24}$$<\/p>\n\n\n\n

\u5176\u4e2d $\\eta$ \u4e3a\u91cf\u5b50\u6548\u7387\uff0c$q$ \u4e3a\u7535\u5b50\u7535\u8377\uff0c$\\lambda$ \u4e3a\u6ce2\u957f\uff08\u4ee5\u5fae\u7c73\u4e3a\u5355\u4f4d\uff09\u3002\u5728\u9ad8\u8d28\u91cf\u7684\u5149\u7ea4\u8026\u5408\u5149\u63a5\u6536\u5668\u4e2d\uff0c\u91cf\u5b50\u6548\u7387\u901a\u5e38\u8d85\u8fc7 80%\uff0c\u4ece\u800c\u5bfc\u81f4 1550nm \u6ce2\u957f\u4e0b\u7684\u54cd\u5e94\u7387\u5927\u4e8e 0.9 A\/W\u3002\u7136\u800c\uff0c\u5982\u679c\u672c\u5e95\u566a\u58f0\u8fc7\u9ad8\uff0c\u9ad8\u54cd\u5e94\u7387\u4e5f\u65e0\u6d4e\u4e8e\u4e8b\u3002.<\/p>\n\n\n\n

\u6697\u7535\u6d41\u548c\u5bc4\u751f\u7535\u5bb9\u7684\u5f71\u54cd<\/h3>\n\n\n\n

\u4ece\u5143\u4ef6\u8d28\u91cf\u7684\u89d2\u5ea6\u6765\u770b\uff0c\u201c\u6697\u7535\u6d41\u201d\uff08$I_d$\uff09\u662f\u7cbe\u5ea6\u7684\u4e3b\u8981\u654c\u4eba\u3002\u8fd9\u662f\u5728\u5b8c\u5168\u9ed1\u6697\u7684\u60c5\u51b5\u4e0b\u6d41\u8fc7\u63a5\u6536\u5668\u7684\u5269\u4f59\u7535\u6d41\u3002\u6697\u7535\u6d41\u662f\u534a\u5bfc\u4f53\u751f\u957f\u8d28\u91cf\u7684\u51fd\u6570\uff1bInGaAs \u6676\u683c\u4e2d\u7684\u7f3a\u9677\u4f1a\u4ea7\u751f\u4e2d\u95f4\u80fd\u6001\uff0c\u4ece\u800c\u4fc3\u8fdb\u8f7d\u6d41\u5b50\u7684\u70ed\u751f\u6210\u3002.<\/p>\n\n\n\n

\u6b64\u5916\uff0c\u63a5\u6536\u5668\u7684 \u201c\u6709\u6548\u533a\u57df \u201d\u5927\u5c0f\u4e5f\u9700\u8981\u6743\u8861\u3002\u6709\u6e90\u9762\u79ef\u8d8a\u5927\uff08\u4f8b\u5982 500 \u5fae\u7c73\uff09\uff0c\u5149\u7ea4\u5bf9\u51c6\u8d8a\u5bb9\u6613\uff0c\u4f46\u5bc4\u751f\u7535\u5bb9\u4e5f\u4f1a\u589e\u52a0\u3002\u9ad8\u7535\u5bb9\u5c31\u50cf\u4e00\u4e2a\u4f4e\u901a\u6ee4\u6ce2\u5668\uff0c\u4e25\u91cd\u9650\u5236\u4e86\u7cfb\u7edf\u7684\u5e26\u5bbd\u3002\u5728\u9ad8\u901f 1550 nm \u5149\u7ea4\u7cfb\u7edf\u4e2d\uff0c\u5de5\u7a0b\u5e08\u5fc5\u987b\u9009\u62e9\u6709\u6548\u9762\u79ef\u5c3d\u53ef\u80fd\u5c0f\u7684\u63a5\u6536\u5668\uff0c\u540c\u65f6\u8fd8\u80fd\u53ef\u9760\u5730\u6355\u6349\u5149\u7ea4\u7684\u53d1\u6563\u8f93\u51fa\uff0c\u8fd9\u901a\u5e38\u9700\u8981\u5728\u63a5\u6536\u5668\u5c01\u88c5\u5185\u5b89\u88c5\u7cbe\u5bc6\u7684\u975e\u7403\u9762\u900f\u955c\u3002.<\/p>\n\n\n\n

\u53d1\u5c04\u539f\u7406\uff1a\u5149\u7ea4\u5c3e\u7ea4 LED \u7684\u5de5\u7a0b\u8bbe\u8ba1<\/h2>\n\n\n\n

\u867d\u7136\u6fc0\u5149\u4e8c\u6781\u7ba1\u80fd\u63d0\u4f9b\u9ad8\u529f\u7387\u548c\u9ad8\u76f8\u5e72\u6027\uff0c\u4f46\u5176 \u5149\u7ea4\u5c3e\u7ea4 led<\/a><\/strong> \u5728\u9700\u8981\u4f4e\u65f6\u95f4\u76f8\u5e72\u6027\u548c\u9ad8\u7a33\u5b9a\u6027\u7684\u5e94\u7528\u4e2d\uff0c\u5982\u5149\u5b66\u76f8\u5e72\u65ad\u5c42\u626b\u63cf\uff08OCT\uff09\u6216\u67d0\u4e9b\u7c7b\u578b\u7684\u5149\u7ea4\u9640\u87ba\u4eea\uff0c\u8fd9\u79cd\u6280\u672f\u4ecd\u7136\u662f\u4e0d\u53ef\u6216\u7f3a\u7684\u3002.<\/p>\n\n\n\n

LED \u8026\u5408\u4e2d\u7684\u57c3\u987f\u675c\u57c3\u6311\u6218<\/h3>\n\n\n\n

\u5de5\u7a0b\u8bbe\u8ba1\u7684\u4e3b\u8981\u969c\u788d\u662f \u5149\u7ea4\u5c3e\u7ea4 led<\/strong> \u662f \u201cEtendue \u201d\u6216 \u201c\u9762\u79ef-\u5b9e\u89d2\u4e58\u79ef \u201d\u7684\u5b88\u6052\u3002LED \u662f\u6717\u4f2f\u53d1\u5149\u4f53\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u4eec\u5728 180 \u5ea6\u7684\u534a\u7403\u8303\u56f4\u5185\u53d1\u5149\u3002\u5c06\u8fd9\u79cd\u6f2b\u5c04\u5149\u8026\u5408\u5230\u5355\u6a21 1550nm \u5149\u7ea4<\/a><\/strong> \u6570\u503c\u5b54\u5f84\uff08NA\uff09\u7ea6\u4e3a 0.14\uff0c\u672c\u8eab\u6548\u7387\u4e0d\u9ad8\u3002.<\/p>\n\n\n\n

\u4e3a\u4e86\u514b\u670d\u8fd9\u4e00\u95ee\u9898\uff0c\u5236\u9020\u5546\u91c7\u7528\u4e86 \u201c\u8fb9\u7f18\u53d1\u5149 LED\u201d\uff08ELED\uff09\u6216 \u201c\u8d85\u7ea7\u53d1\u5149 LED\u201d\uff08SLED\uff09\u7ed3\u6784\u3002\u4e0e\u6807\u51c6\u7684\u8868\u9762\u53d1\u5149 LED \u4e0d\u540c\uff0cELED \u5c06\u5149\u7ebf\u9650\u5236\u5728\u4e00\u4e2a\u72ed\u7a84\u7684\u63a5\u5408\u5c42\u5185\uff0c\u7c7b\u4f3c\u4e8e \"\u94a8\u4e1d\u706f\"\u3002 \u6fc0\u5149\u4e8c\u6781\u7ba1<\/a> \u4f46\u6ca1\u6709\u5149\u5b66\u53cd\u9988\u955c\u3002\u8fd9\u5c31\u4ea7\u751f\u4e86\u65b9\u5411\u6027\u66f4\u5f3a\u7684\u5149\u675f\uff0c\u53ef\u88ab\u5fae\u578b\u5149\u5b66\u5668\u4ef6\u6355\u6349\u5e76\u53d1\u5c04\u5230\u5149\u7ea4\u5c3e\u7ea4\u4e2d\u3002\u5149\u675f\u8d28\u91cf \u5149\u7ea4\u5c3e\u7ea4 led<\/strong> \u56e0\u6b64\uff0c\u8bc4\u5224\u7684\u6807\u51c6\u662f\u5176 \u201c\u8026\u5408\u529f\u7387\u201d\uff0c\u800c\u4e0d\u662f\u5176\u603b\u5149\u901a\u91cf\u3002.<\/p>\n\n\n\n

\u5149\u8c31\u5bbd\u5ea6\u548c\u8272\u5ea6\u8272\u6563<\/h3>\n\n\n\n

\u8be5\u7cfb\u7edf\u7684\u4e00\u4e2a\u660e\u663e\u4f18\u52bf\u662f \u5149\u7ea4\u5c3e\u7ea4 led<\/strong> 1550nm \u6ce2\u957f\u7684\u4f18\u52bf\u5728\u4e8e\u5176\u5bbd\u5149\u8c31\u5bbd\u5ea6\uff08\u901a\u5e38\u4e3a 30nm \u81f3 100nm\uff09\u3002\u5728\u4f20\u611f\u5e94\u7528\u4e2d\uff0c\u8fd9\u79cd\u5bbd\u5149\u8c31\u53ef\u51cf\u5c11 \u201c\u6591\u70b9\u566a\u58f0 \u201d\u548c\u5e72\u6270\u4f2a\u5f71\u3002\u7136\u800c\uff0c\u5728 1550 nm \u5149\u7ea4<\/strong> \u5728\u4f20\u8f93\u8fc7\u7a0b\u4e2d\uff0c\u8fd9\u79cd\u5bbd\u5ea6\u4f1a\u5bfc\u81f4\u4e25\u91cd\u7684\u8272\u5ea6\u8272\u6563\u3002LED \u5149\u8c31\u4e2d\u7684\u4e0d\u540c\u6ce2\u957f\u5728\u5149\u7ea4\u4e2d\u7684\u4f20\u8f93\u901f\u5ea6\u4e0d\u540c\uff0c\u4ece\u800c\u5bfc\u81f4\u8109\u51b2\u5c55\u5bbd\u3002\u56e0\u6b64\uff0c\u5c3e\u7ea4 LED \u66f4\u9002\u5408\u7528\u4e8e\u4e2d\u77ed\u7a0b\u4f20\u611f\uff0c\u800c\u975e\u957f\u9014\u7535\u4fe1\u3002.<\/p>\n\n\n\n

\u4ece\u90e8\u4ef6\u8d28\u91cf\u5230\u7cfb\u7edf\u603b\u6210\u672c\uff1a\u53ef\u9760\u6027\u7b2c\u4e00 \u201c\u7684\u89c2\u70b9<\/h2>\n\n\n\n

\u5728\u91c7\u8d2d\u5143\u4ef6\u65f6\uff0c\u5982 \u5149\u7ea4\u8026\u5408\u5149\u63a5\u6536\u5668<\/strong> \u6216 \u5149\u7ea4\u5c3e\u7ea4 led<\/strong>, \u8d2d\u4e70\u8005\u901a\u5e38\u5173\u6ce8\u7684\u662f \u201c\u6bcf\u6beb\u74e6\u4ef7\u683c \u201d\u6216 \u201c\u6bcf\u5355\u4f4d\u4ef7\u683c\u201d\u3002\u7136\u800c\uff0c\u5728\u5de5\u4e1a\u548c\u533b\u7597\u9886\u57df\uff0c\u771f\u6b63\u7684\u6210\u672c\u662f\u7531 \u201c\u6545\u969c\u6210\u672c \u201d\u51b3\u5b9a\u7684\u3002\u201d<\/p>\n\n\n\n

\u52a3\u8d28\u5149\u7ea4\u8026\u5408\u6a21\u5757\u901a\u5e38\u4f7f\u7528\u73af\u6c27\u6811\u8102\u5bf9\u51c6\u3002\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\uff0c\u70ed\u5faa\u73af\u4f1a\u5bfc\u81f4\u73af\u6c27\u6811\u8102\u81a8\u80c0\u548c\u6536\u7f29\uff0c\u4ece\u800c\u5bfc\u81f4 \u201c\u5bf9\u51c6\u6f02\u79fb\u201d\u3002\u5149\u7ea4\u76f8\u5bf9\u4e8e\u63a2\u6d4b\u5668\u7684\u4f4d\u7f6e\u53ea\u8981\u504f\u79fb 2 \u5fae\u7c73\uff0c\u5c31\u4f1a\u5bfc\u81f4 3dB (50%) \u7684\u4fe1\u53f7\u635f\u5931\u3002\u5982\u679c\u8fd9\u79cd\u60c5\u51b5\u53d1\u751f\u5728\u57cb\u5165\u5730\u4e0b\u7684\u57fa\u7840\u8bbe\u65bd\u4f20\u611f\u5668\u6216\u624b\u672f\u6fc0\u5149\u7cfb\u7edf\u4e2d\uff0c\u7ef4\u4fee\u6216\u91cd\u65b0\u6821\u51c6\u7684\u6210\u672c\u5c06\u8fdc\u8fdc\u8d85\u8fc7\u6700\u521d\u8282\u7701\u7684\u5143\u4ef6\u8d39\u7528\u3002.<\/p>\n\n\n\n

\u76f8\u6bd4\u4e4b\u4e0b\uff0c\u4e13\u4e1a\u7ea7\u6a21\u5757\u91c7\u7528\u6fc0\u5149\u710a\u63a5\u7684 \u201c\u8776\u5f62 \u201d\u6216 \u201cTO-can \u201d\u5c01\u88c5\u3002\u6fc0\u5149\u710a\u63a5\u53ef\u5f62\u6210\u6c38\u4e45\u6027\u7684\u65e0\u673a\u7c98\u63a5\uff0c\u4e0d\u6613\u8131\u6c14\u548c\u53d7\u6f6e\u3002\u8fd9\u53ef\u786e\u4fdd 1550nm \u5149\u7ea4<\/strong> \u5728\u51e0\u5341\u5e74\u7684\u8fd0\u884c\u8fc7\u7a0b\u4e2d\uff0c\u63a5\u53e3\u4fdd\u6301\u7a33\u5b9a\u3002.<\/p>\n\n\n\n

\u6848\u4f8b\u7814\u7a76\uff1a\u5de5\u4e1a\u70bc\u6cb9\u5382\u7684\u9ad8\u7075\u654f\u5ea6\u7532\u70f7\u68c0\u6d4b<\/h2>\n\n\n\n

\u5ba2\u6237\u80cc\u666f\uff1a<\/p>\n\n\n\n

\u4e00\u5bb6\u5de5\u4e1a\u6c14\u4f53\u5b89\u5168\u7cfb\u7edf\u5236\u9020\u5546\u9700\u8981\u4e00\u4e2a\u9065\u611f\u89e3\u51b3\u65b9\u6848\uff0c\u5229\u7528\u73b0\u6709\u7684 1550 nm \u5149\u7ea4\u57fa\u7840\u8bbe\u65bd\u68c0\u6d4b 2 \u516c\u91cc\u5916\u7684\u7532\u70f7\u6cc4\u6f0f\u60c5\u51b5\u3002.<\/p>\n\n\n\n

\u6280\u672f\u6311\u6218\uff1a<\/p>\n\n\n\n

\u7532\u70f7\u5728 1650nm \u9644\u8fd1\u6709\u4e00\u6761\u7279\u5b9a\u7684\u5438\u6536\u7ebf\uff0c\u4f46\u7cfb\u7edf\u4f7f\u7528 1550nm \u7684 \u201c\u8fb9\u5e26 \u201d\u4f5c\u4e3a\u53c2\u8003\u3002\u6240\u9762\u4e34\u7684\u6311\u6218\u662f\u8fdc\u7a0b\u6c14\u5ba4\u7684\u8fd4\u56de\u4fe1\u53f7\u6781\u4f4e\u3002\u8be5\u7cfb\u7edf\u9700\u8981<\/p>\n\n\n\n

    \n
  • A \u5149\u7ea4\u8026\u5408\u5149\u63a5\u6536\u5668<\/strong> \u5177\u6709\u8d85\u4f4e\u7684\u566a\u58f0\u7b49\u6548\u529f\u7387 (NEP)\uff0c\u53ef\u68c0\u6d4b\u76ae\u74e6\u7279\u7ea7\u4fe1\u53f7\u3002.<\/li>\n\n\n\n
  • A \u5149\u7ea4\u5c3e\u7ea4 led<\/strong> \u5149\u8c31\u7a33\u5b9a\u6027\u9ad8\uff0c\u4ee5\u786e\u4fdd\u53c2\u8003\u4fe1\u53f7\u4e0d\u4f1a\u6f02\u79fb\u548c\u6a21\u4eff\u6c14\u4f53\u5438\u6536\u5cf0\u3002.<\/li>\n\n\n\n
  • \u6700\u5c0f\u7684\u5149\u56de\u6ce2\u635f\u8017 (ORL)\uff0c\u9632\u6b62\u5149\u7ea4\u73af\u8def\u4e2d\u51fa\u73b0\u9b3c\u5f71\u4fe1\u53f7\u3002.<\/li>\n<\/ul>\n\n\n\n

    \u6280\u672f\u53c2\u6570\u548c\u8bbe\u7f6e<\/strong><\/p>\n\n\n\n

      \n
    • \u6e90\u81ea\uff1a<\/strong> 1550nm SLED\uff08\u8d85\u7ea7\u53d1\u5149\u4e8c\u6781\u7ba1\uff09\uff0c\u5c3e\u7ea4\u8fde\u63a5\u81f3 G.652.D \u5355\u6a21\u5149\u7ea4\u3002.<\/li>\n\n\n\n
    • \u63a5\u6536\u5668<\/strong> InGaAs PIN-TIA\uff08\u8de8\u963b\u6297\u653e\u5927\u5668\uff09\u96c6\u6210\u63a5\u6536\u5668\u3002.<\/li>\n\n\n\n
    • NEP\uff1a<\/strong> $5 \u7684 10^{-15 \u500d\uff5d\\\u6587\u672c{ W\/Hz}^{1\/2}$.<\/li>\n\n\n\n
    • \u8026\u5408\uff1a<\/strong> \u901a\u8fc7 6 \u8f74\u673a\u5668\u4eba\u5de5\u4f5c\u7ad9\u8fdb\u884c\u4e3b\u52a8\u6821\u51c6\uff0c\u7528 Nd:YAG \u6fc0\u5149\u710a\u63a5\u56fa\u5b9a\u3002.<\/li>\n<\/ul>\n\n\n\n

      \u8d28\u91cf\u63a7\u5236 (QC) \u89e3\u51b3\u65b9\u6848\uff1a<\/p>\n\n\n\n

      \u6bcf\u4e2a\u5149\u7ea4\u8026\u5408\u5149\u63a5\u6536\u5668\u90fd\u8981\u63a5\u53d7\u4ece -20\u00b0C \u5230 +70\u00b0C \u7684 \u201c\u6697\u7535\u6d41\u4e0e\u6e29\u5ea6 \u201d\u626b\u63cf\u3002\u6697\u7535\u6d41\u5448\u6307\u6570\u589e\u957f\u7684\u6a21\u5757\u88ab\u5254\u9664\uff0c\u8fd9\u8868\u660e\u5b58\u5728\u6676\u683c\u6742\u8d28\u3002\u5c3e\u7ea4 LED \u5728\u6700\u5927\u989d\u5b9a\u7535\u6d41\u4e0b\u8fdb\u884c\u4e86 168 \u5c0f\u65f6\u7684 \u201c\u52a0\u901f\u8001\u5316 \u201d\u6d4b\u8bd5\uff0c\u4ee5\u7a33\u5b9a\u5149\u8c31\u8f93\u51fa\u3002.<\/p>\n\n\n\n

      \u7ed3\u8bba<\/p>\n\n\n\n

      \u901a\u8fc7\u4f7f\u7528\u9ad8\u54cd\u5e94\u3001\u4f4e\u566a\u58f0\u7684\u5149\u7ea4\u8026\u5408\u5149\u5b66\u63a5\u6536\u5668\uff0c\u5ba2\u6237\u80fd\u591f\u5728 2 \u5343\u7c73\u7684\u5149\u7ea4\u8303\u56f4\u5185\u5b9e\u73b0 50 ppm\uff08\u767e\u4e07\u5206\u4e4b\u4e00\uff09\u7684\u7532\u70f7\u68c0\u6d4b\u9650\u3002\u6fc0\u5149\u710a\u63a5\u5c3e\u7ea4\u7684\u4f7f\u7528\u786e\u4fdd\u4e86\u8be5\u7cfb\u7edf\u5728\u70bc\u6cb9\u5382\u591a\u53d8\u73af\u5883\u4e2d\u5ba4\u5916\u90e8\u7f72\u7684\u5934\u4e24\u5e74\u5185\u65e0\u9700\u91cd\u65b0\u6821\u51c6\u3002.<\/p>\n\n\n\n

      \u6280\u672f\u6bd4\u8f83\uff1a1550 \u7eb3\u7c73\u63a5\u6536\u5668\u6280\u672f<\/h2>\n\n\n\n

      \u4e0b\u8868\u6982\u8ff0\u4e86\u6807\u51c6\u63a5\u6536\u5668\u7ec4\u4ef6\u548c\u9ad8\u6027\u80fd\u63a5\u6536\u5668\u7ec4\u4ef6\u5728\u6027\u80fd\u4e0a\u7684\u5dee\u5f02\u3002 1550 nm \u5149\u7ea4<\/strong> \u7cfb\u7edf.<\/p>\n\n\n\n

      \u89c4\u683c<\/strong><\/td>\u6807\u51c6 InGaAs PIN<\/strong><\/td>\u9ad8\u901f PIN-TIA<\/strong><\/td>\u96ea\u5d29\u5149\u7535\u4e8c\u6781\u7ba1 (APD)<\/strong><\/td><\/tr><\/thead>
      \u5149\u8c31\u8303\u56f4<\/strong><\/td>1100 - 1700 \u7eb3\u7c73<\/td>1100 - 1650 \u7eb3\u7c73<\/td>1260 - 1620 \u7eb3\u7c73<\/td><\/tr>
      \u54cd\u5e94\u6027<\/strong><\/td>0.85 - 0.95 a\/w<\/td>0.90 A\/W<\/td>8 - 10 a\/w (m=10)<\/td><\/tr>
      \u6697\u6d41<\/strong><\/td>0.5 - 2.0 nA<\/td>1.0 - 5.0 nA<\/td>10 - 50 nA<\/td><\/tr>
      \u5e26\u5bbd<\/strong><\/td>100 - 500 \u5146\u8d6b<\/td>1 - 10 \u5343\u5146\u8d6b<\/td>1 - 2.5 \u5343\u5146\u8d6b<\/td><\/tr>
      NEP \uff08\u5178\u578b\u503c\uff09<\/strong><\/td>$10^{-14\uff5d\\\u6587\u672c{ W\/Hz}^{1\/2}$<\/td>$10^{-13\uff5d\\\u6587\u672c{ W\/Hz}^{1\/2}$<\/td>$10^{-15\uff5d\\\u6587\u672c{ W\/Hz}^{1\/2}$<\/td><\/tr>
      \u8054\u63a5\u7c7b\u578b<\/strong><\/td>\u5149\u7ea4\u5c3e\u7ea4<\/td>\u5149\u7ea4\u5c3e\u7ea4<\/td>\u63d2\u5ea7\/\u5c3e\u7ea4<\/td><\/tr>
      \u5178\u578b\u5e94\u7528<\/strong><\/td>\u7535\u6e90\u76d1\u63a7<\/td>\u6570\u636e\u901a\u4fe1<\/td>\u8fdc\u7a0b\u6fc0\u5149\u96f7\u8fbe<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

      \u4e13\u4e1a\u5e38\u89c1\u95ee\u9898\uff1a1550nm \u5149\u5b66\u5143\u4ef6<\/h2>\n\n\n\n

      \u95ee 1\uff1a1550 \u7eb3\u7c73\u63a5\u6536\u5668\u4e3a\u4ec0\u4e48\u4f7f\u7528 InGaAs \u800c\u4e0d\u662f\u7845\uff1f<\/p>\n\n\n\n

      \u7845\u7684\u5e26\u9699\u7ea6\u4e3a 1.1 eV\uff0c\u8fd9\u610f\u5473\u7740\u5b83\u53ea\u80fd\u5438\u6536\u6ce2\u957f\u77ed\u4e8e 1100 \u7eb3\u7c73\u7684\u5149\u5b50\u3002\u5728 1550 \u7eb3\u7c73\u6ce2\u957f\u5904\uff0c\u7845\u662f\u900f\u660e\u7684\u3002InGaAs \u7684\u5e26\u9699\u8f83\u4f4e\uff08\u7ea6 0.75eV\uff09\uff0c\u56e0\u6b64\u80fd\u6709\u6548\u5730\u5c06 1550nm \u6ce2\u957f\u7684\u5149\u5b50\u8f6c\u5316\u4e3a\u7535\u5b50\u3002.<\/p>\n\n\n\n

      \u95ee 2\uff1a\u201c\u5c3e\u7ea4 \u201d\u6a21\u5757\u548c \u201c\u63d2\u5ea7 \u201d\u6a21\u5757\u6709\u4ec0\u4e48\u533a\u522b\uff1f<\/p>\n\n\n\n

      \u5149\u7ea4\u5c3e\u7ea4\u5f15\u7ebf\u6216\u63a5\u6536\u5668\u6709\u4e00\u6bb5\u6c38\u4e45\u8fde\u63a5\u5e76\u5bf9\u51c6\u5185\u90e8\u82af\u7247\u7684\u5149\u7ea4\u3002\u8fd9\u53ef\u63d0\u4f9b\u6700\u4f4e\u7684\u63d2\u5165\u635f\u8017\u548c\u6700\u9ad8\u7684\u7a33\u5b9a\u6027\u3002\u63d2\u5ea7\u6a21\u5757\u7684\u5916\u58f3\u4e2d\u5185\u7f6e\u4e00\u4e2a\u8fde\u63a5\u5668\uff08\u5982 LC \u6216 FC\uff09\uff0c\u5141\u8bb8\u7528\u6237\u63d2\u5165\u81ea\u5df1\u7684\u5149\u7f06\uff0c\u7075\u6d3b\u6027\u66f4\u9ad8\uff0c\u4f46\u6c61\u67d3\u548c\u635f\u8017\u7684\u53ef\u80fd\u6027\u4e5f\u66f4\u5927\u3002.<\/p>\n\n\n\n

      \u95ee\u9898 3\uff1a \u6e29\u5ea6\u5bf9 1550 nm \u5149\u7ea4\u63a5\u6536\u5668\u6709\u4f55\u5f71\u54cd\uff1f<\/p>\n\n\n\n

      \u968f\u7740\u6e29\u5ea6\u7684\u5347\u9ad8\uff0c\u70ed\u80fd\u5141\u8bb8\u66f4\u591a\u7535\u5b50\u5728\u6ca1\u6709\u5149\u523a\u6fc0\u7684\u60c5\u51b5\u4e0b\u8dc3\u8fc1\u5e26\u9699\uff0c\u4ece\u800c\u589e\u52a0\u4e86 \u201c\u6697\u7535\u6d41\u201d\u3002\u8fd9\u6709\u6548\u5730\u63d0\u9ad8\u4e86\u7cfb\u7edf\u7684\u672c\u5e95\u566a\u58f0\u3002\u9ad8\u6027\u80fd\u5149\u7ea4\u8026\u5408\u5149\u63a5\u6536\u5668\u901a\u5e38\u5305\u62ec\u4e00\u4e2a\u5185\u90e8\u70ed\u654f\u7535\u963b\u6765\u76d1\u6d4b\u8fd9\u79cd\u6548\u5e94\uff0c\u6216\u4e00\u4e2a TEC \u6765\u7a33\u5b9a\u6e29\u5ea6\u3002.<\/p>\n\n\n\n

      \u95ee\u9898 4\uff1a\u5149\u7ea4\u5c3e\u7ea4\u5f15\u7ebf\u80fd\u5426\u7528\u4e8e\u9ad8\u901f\u6570\u636e\u4f20\u8f93\uff1f<\/p>\n\n\n\n

      \u4ec5\u9002\u7528\u4e8e\u76f8\u5bf9\u8f83\u4f4e\u7684\u901f\u5ea6\uff08\u901a\u5e38\u5c0f\u4e8e 622 Mbps\uff09\u3002\u7531\u4e8e LED \u5177\u6709\u8f83\u5bbd\u7684\u5149\u8c31\u5bbd\u5ea6\uff0c1550nm \u5149\u7ea4\u4e2d\u7684\u8272\u5ea6\u8272\u6563\u4f1a\u5bfc\u81f4\u4fe1\u53f7\u5728\u957f\u8ddd\u79bb\u4f20\u8f93\u65f6\u6a21\u7cca\u4e0d\u6e05\u3002\u5bf9\u4e8e\u9ad8\u901f\u6216\u957f\u8ddd\u79bb\u6570\u636e\uff0c\u7531\u4e8e\u6fc0\u5149\u4e8c\u6781\u7ba1\uff08LD\uff09\u7684\u7ebf\u5bbd\u8f83\u7a84\uff0c\u56e0\u6b64\u9700\u8981\u4f7f\u7528\u6fc0\u5149\u4e8c\u6781\u7ba1\u3002.<\/p>\n\n\n\n

      \u95ee\u9898 5\uff1a PIN \u5149\u7535\u4e8c\u6781\u7ba1\u4e2d\u7684 \u201cPIN \u201d\u6709\u4f55\u610f\u4e49\uff1f<\/p>\n\n\n\n

      PIN \u4ee3\u8868 P \u578b\u3001\u672c\u5f81\u3001N \u578b\u3002\u672c\u5f81 \u201c\u5c42\u662f P \u5c42\u548c N \u5c42\u4e4b\u95f4\u4e00\u4e2a\u5bbd\u9614\u7684\u672a\u63ba\u6742\u533a\u57df\u3002\u8fd9\u589e\u52a0\u4e86\u53ef\u5438\u6536\u5149\u5b50\u7684\u4f53\u79ef\uff0c\u964d\u4f4e\u4e86\u7ed3\u7535\u5bb9\uff0c\u4e0e\u6807\u51c6 PN \u7ed3\u76f8\u6bd4\uff0c\u7075\u654f\u5ea6\u66f4\u9ad8\uff0c\u54cd\u5e94\u65f6\u95f4\u66f4\u5feb\u3002.<\/p>","protected":false},"excerpt":{"rendered":"

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