{"id":4216,"date":"2026-02-11T15:30:51","date_gmt":"2026-02-11T07:30:51","guid":{"rendered":"https:\/\/laserdiode-ld.com\/?p=4216"},"modified":"2026-01-26T13:22:44","modified_gmt":"2026-01-26T05:22:44","slug":"%e3%82%b9%e3%83%9a%e3%82%af%e3%83%88%e3%83%ab%e7%b4%94%e5%ba%a6%e5%b7%a5%e5%ad%a6%e7%8b%ad%e7%b7%9a%e5%b9%85dfb%e3%83%95%e3%82%a1%e3%82%a4%e3%83%90%e3%83%bc%e7%b5%90%e5%90%88%e3%83%ac%e3%83%bc","status":"publish","type":"post","link":"https:\/\/laserdiode-ld.com\/ja\/%e3%82%b9%e3%83%9a%e3%82%af%e3%83%88%e3%83%ab%e7%b4%94%e5%ba%a6%e5%b7%a5%e5%ad%a6%e7%8b%ad%e7%b7%9a%e5%b9%85dfb%e3%83%95%e3%82%a1%e3%82%a4%e3%83%90%e3%83%bc%e7%b5%90%e5%90%88%e3%83%ac%e3%83%bc-2","title":{"rendered":"\u30b9\u30da\u30af\u30c8\u30eb\u7d14\u5ea6\u306e\u7269\u7406\u5b66\uff1a\u72ed\u7dda\u5e45DFB\u30d5\u30a1\u30a4\u30d0\u30fc\u7d50\u5408\u30ec\u30fc\u30b6\u30fc\u306e\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0"},"content":{"rendered":"<h2 class=\"wp-block-heading\">\u30b3\u30d2\u30fc\u30ec\u30f3\u30b9\u306e\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u5358\u7d14\u306a\u30d5\u30a9\u30c8\u30f3\u653e\u51fa\u3092\u8d85\u3048\u3066<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u30aa\u30d7\u30c8\u30a8\u30ec\u30af\u30c8\u30ed\u30cb\u30af\u30b9\u306e\u5c02\u9580\u5206\u91ce\u3067\u306f <strong>DFB\uff08\u5206\u5e03\u5e30\u9084\u578b\uff09\u30d5\u30a1\u30a4\u30d0\u30fc\u7d50\u5408\u30ec\u30fc\u30b6\u30fc<\/strong> \u306f\u3001\u534a\u5c0e\u4f53\u30b9\u30da\u30af\u30c8\u30eb\u5236\u5fa1\u306e\u6700\u9ad8\u5cf0\u3067\u3042\u308b\u3002\u6a19\u6e96\u7684\u306a\u30d5\u30a1\u30d6\u30ea\u30fc\u30fb\u30da\u30ed\u30fc\u30fb\u30ec\u30fc\u30b6\u30fc\u3067\u306f\u3001\u5171\u632f\u5668\u5185\u3067\u8907\u6570\u306e\u7e26\u30e2\u30fc\u30c9\u304c\u767a\u632f\u3059\u308b\u305f\u3081\u3001\u30b9\u30da\u30af\u30c8\u30eb\u304c\u5e83\u304f\u4e0d\u5b89\u5b9a\u306b\u306a\u308b\u304c\u3001DFB\u69cb\u9020\u3067\u306f\u3001\u30ec\u30fc\u30b6\u30fc\u3092\u5358\u4e00\u306e\u6b63\u78ba\u306a\u5468\u6ce2\u6570\u3067\u52d5\u4f5c\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u5206\u6563\u578b\u97f3\u97ff\u30bb\u30f3\u30b7\u30f3\u30b0\uff08DAS\uff09\u3084\u30b3\u30d2\u30fc\u30ec\u30f3\u30c8\u5149\u901a\u4fe1\u306e\u3088\u3046\u306a\u30a2\u30d7\u30ea\u30b1\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001\u30b9\u30da\u30af\u30c8\u30eb\u7d14\u5ea6\u304c\u30b7\u30b9\u30c6\u30e0\u6027\u80fd\u306e\u57fa\u672c\u7684\u306a\u8981\u7d20\u306b\u306a\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30de\u30eb\u30c1\u30e2\u30fc\u30c9\u30fb\u30bd\u30fc\u30b9\u304b\u3089\u5358\u4e00\u5468\u6ce2\u6570\u30bd\u30fc\u30b9\u3078\u306e\u79fb\u884c <strong>1550nm DFB\u30ec\u30fc\u30b6\u30fc<\/strong> DFB\u30ec\u30fc\u30b6\u30fc\u306b\u306f\u3001\u5171\u632f\u5668\u7269\u7406\u306e\u6839\u672c\u7684\u306a\u8ee2\u63db\u304c\u3042\u308b\u3002DFB\u30ec\u30fc\u30b6\u30fc\u306f\u3001\u30df\u30e9\u30fc\u3068\u3057\u3066\u6a5f\u80fd\u3059\u308b\u534a\u5c0e\u4f53\u30c1\u30c3\u30d7\u306e\u5288\u958b\u30d5\u30a1\u30bb\u30c3\u30c8\u306b\u983c\u308b\u4ee3\u308f\u308a\u306b\u3001\u30c1\u30c3\u30d7\u306e\u6d3b\u6027\u9818\u57df\u306b\u5468\u671f\u7684\u69cb\u9020\u3067\u3042\u308b\u30d6\u30e9\u30c3\u30b0\u30b0\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u76f4\u63a5\u7d44\u307f\u8fbc\u3080\u3002\u3053\u306e\u30b0\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u306f\u3001\u5358\u4e00\u6ce2\u9577\u306e\u307f\u304c\u5efa\u8a2d\u7684\u5e72\u6e09\u3092\u53d7\u3051\u308b\u5468\u6ce2\u6570\u9078\u629e\u30d5\u30a3\u30eb\u30bf\u30fc\u3068\u3057\u3066\u6a5f\u80fd\u3059\u308b\u3002\u6280\u8853\u8005\u306b\u3068\u3063\u3066\u306e\u8ab2\u984c\u306f\u3001\u3053\u306e\u30b0\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u5b9f\u73fe\u3068\u3001\u305d\u308c\u306b\u7d9a\u304f\u30c1\u30c3\u30d7\u3078\u306e\u7d50\u5408\u306b\u3042\u308b\u3002 <strong><a class=\"wpil_keyword_link\" href=\"https:\/\/laserdiode-ld.com\/product-category\/single-mode-fiber-coupled-laser-module\"   title=\"\u30b7\u30f3\u30b0\u30eb\u30e2\u30fc\u30c9\u30d5\u30a1\u30a4\u30d0\u30fc\u7d50\u5408\u578b\u30ec\u30fc\u30b6\u30fc\u30e2\u30b8\u30e5\u30fc\u30eb\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"550\">\u504f\u6ce2\u4fdd\u6301\u30d5\u30a1\u30a4\u30d0\u30fc\u30ec\u30fc\u30b6\u30fc<\/a><\/strong> \u4f4d\u76f8\u30ce\u30a4\u30ba\u3084\u6a5f\u68b0\u7684\u306a\u4e0d\u5b89\u5b9a\u6027\u3092\u767a\u751f\u3055\u305b\u308b\u3053\u3068\u306a\u304f\u3001\u30b7\u30b9\u30c6\u30e0\u3092\u5b89\u5b9a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u91cf\u5b50\u683c\u5b50\u7269\u7406\u5b66\uff1a\u5468\u6ce2\u6570\u9078\u629e\u306e\u30e1\u30ab\u30cb\u30ba\u30e0<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">DFB\u30ec\u30fc\u30b6\u30fc\u306e\u5fc3\u81d3\u90e8\u306f\u3001\u5185\u90e8\u306e\u30d6\u30e9\u30c3\u30b0\u30b0\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u3067\u3042\u308b\u3002\u3053\u306e\u30b0\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u306f\u3001\u30ec\u30fc\u30b6\u30fc\u5171\u632f\u5668\u306e\u7e26\u8ef8\u306b\u6cbf\u3063\u3066\u5c48\u6298\u7387\u3092\u5468\u671f\u7684\u306b\u5909\u5316\u3055\u305b\u308b\u3082\u306e\u3067\u3042\u308b\u3002\u7269\u7406\u5b66\u306f\u30d6\u30e9\u30c3\u30b0\u6761\u4ef6\u306b\u3088\u3063\u3066\u652f\u914d\u3055\u308c\u3066\u3044\u308b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">$$lambda=2 \\cdot n_{eff\\Lambda$$<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3053\u3067\u3001$Tlambda_{Bragg}$\u306f\u30bf\u30fc\u30b2\u30c3\u30c8\u6ce2\u9577\u3001$n_{eff}$\u306f\u5c0e\u6ce2\u8def\u306e\u5b9f\u52b9\u5c48\u6298\u7387\u3001$Lambda$\u306f\u30b0\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u5468\u671f\u3067\u3042\u308b\u3002.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"400\" height=\"400\" src=\"https:\/\/laserdiode-ld.com\/wp-content\/uploads\/2026\/01\/6-Multi-mode-Fiber-Detachable-Laser-Module-3.jpg\" alt=\"\" class=\"wp-image-4217\" srcset=\"https:\/\/laserdiode-ld.com\/wp-content\/uploads\/2026\/01\/6-Multi-mode-Fiber-Detachable-Laser-Module-3.jpg 400w, https:\/\/laserdiode-ld.com\/wp-content\/uploads\/2026\/01\/6-Multi-mode-Fiber-Detachable-Laser-Module-3-300x300.jpg 300w, https:\/\/laserdiode-ld.com\/wp-content\/uploads\/2026\/01\/6-Multi-mode-Fiber-Detachable-Laser-Module-3-150x150.jpg 150w, https:\/\/laserdiode-ld.com\/wp-content\/uploads\/2026\/01\/6-Multi-mode-Fiber-Detachable-Laser-Module-3-12x12.jpg 12w, https:\/\/laserdiode-ld.com\/wp-content\/uploads\/2026\/01\/6-Multi-mode-Fiber-Detachable-Laser-Module-3-100x100.jpg 100w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/figure>\n<\/div>\n\n\n<h3 class=\"wp-block-heading\">$\u306e\u4f4d\u76f8\u30b7\u30d5\u30c8\u3068\u30e2\u30fc\u30c9\u5b89\u5b9a\u6027<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">\u5b8c\u5168\u306b\u5747\u4e00\u306a\u30b0\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u306f\u3001\u5b9f\u969b\u306b\u306f\u30d6\u30e9\u30c3\u30b0\u5468\u6ce2\u6570\u3092\u4e2d\u5fc3\u306b\u5bfe\u79f0\u306b\u914d\u7f6e\u3055\u308c\u305f2\u3064\u306e\u30e2\u30fc\u30c9\u3092\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308b\u3002\u771f\u306e\u30b7\u30f3\u30b0\u30eb\u30e2\u30fc\u30c9\u52d5\u4f5c\u3092\u4fdd\u8a3c\u3059\u308b\u305f\u3081\u306b\u3001\u30cf\u30a4\u30a8\u30f3\u30c9\u306e <strong>1550 nm DFB<\/strong> \u30c1\u30c3\u30d7\u306f\u3001\u30b0\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u4e2d\u5fc3\u306b$\u306e\u4f4d\u76f8\u30b7\u30d5\u30c8\u3092\u7d44\u307f\u8fbc\u3093\u3067\u3044\u308b\u3002\u3053\u306e\u30b7\u30d5\u30c8\u306b\u3088\u308a\u3001\u6b63\u78ba\u306a\u30d6\u30e9\u30c3\u30b0\u6ce2\u9577\u3067\u5171\u632f\u304c\u751f\u3058\u3001\u7b2c2\u30e2\u30fc\u30c9\u304c\u52b9\u679c\u7684\u306b\u6291\u5236\u3055\u308c\u3001\u305d\u306e\u7d50\u679c\u3001\u30b5\u30a4\u30c9\u30e2\u30fc\u30c9\u6291\u5236\u6bd4\uff08SMSR\uff09\u306f45dB\u3001\u3042\u308b\u3044\u306f50dB\u3092\u8d85\u3048\u308b\u3053\u3068\u304c\u591a\u3044\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5de5\u5b66\u7684\u306a\u89b3\u70b9\u304b\u3089\u306f\u3001\u96fb\u5b50\u30d3\u30fc\u30e0\u30fb\u30ea\u30bd\u30b0\u30e9\u30d5\u30a3\u3084\u30db\u30ed\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u5e72\u6e09\u306b\u3088\u3063\u3066\u4f5c\u88fd\u3055\u308c\u308b\u3053\u3068\u304c\u591a\u3044\u3053\u306e\u30b0\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u54c1\u8cea\u304c\u3001\u30ec\u30fc\u30b6\u30fc\u306e\u300c\u7dda\u5e45\u300d\u3092\u6c7a\u5b9a\u3059\u308b\u3002\u72ed\u3044\u7dda\u5e45\uff08\u6a19\u6e96\u7684\u306aDFB\u3067\u306f\u901a\u5e381MHz\u672a\u6e80\u3001\u30cf\u30a4\u30a8\u30f3\u30c9\u306e\u3082\u306e\u3067\u306f100kHz\u672a\u6e80\uff09\u306f\u3001\u5149\u306e\u30b3\u30d2\u30fc\u30ec\u30f3\u30b9\u9577\u3092\u76f4\u63a5\u6c7a\u5b9a\u3059\u308b\u305f\u3081\u4e0d\u53ef\u6b20\u3067\u3042\u308b\u3002\u30bb\u30f3\u30b7\u30f3\u30b0\u3067\u306f\u3001\u7dda\u5e45\u304c\u72ed\u3044\u307b\u3069\u3001\u4fe1\u53f7\u306e\u4f4d\u76f8\u95a2\u4fc2\u3092\u5931\u3046\u3053\u3068\u306a\u304f\u3001\u306f\u308b\u304b\u306b\u9577\u3044\u8ddd\u96e2\u306e\u6e2c\u5b9a\u304c\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u4f4d\u76f8\u96d1\u97f3\u3068\u30b7\u30e3\u30a6\u30ed\u30fc\u30fb\u30bf\u30a6\u30f3\u30ba\u9650\u754c<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u5358\u4e00\u5468\u6ce2\u6570\u306e\u7dda\u5e45 <a class=\"wpil_keyword_link\" href=\"https:\/\/laserdiode-ld.com\/product-category\/multi-mode-fiber-coupled-laser-module\"   title=\"\u30de\u30eb\u30c1\u30e2\u30fc\u30c9\u30d5\u30a1\u30a4\u30d0\u30fc\u7d50\u5408\u30ec\u30fc\u30b6\u30fc\u30e2\u30b8\u30e5\u30fc\u30eb\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"553\">\u30d5\u30a1\u30a4\u30d0\u30fc\u7d50\u5408\u30ec\u30fc\u30b6\u30fc<\/a> \u306f\u30bc\u30ed\u3067\u306f\u306a\u3044\u3002\u4f4d\u76f8\u96d1\u97f3\u306b\u3088\u3063\u3066\u5236\u9650\u3055\u308c\u3001\u4e3b\u306b\u767a\u632f\u30e2\u30fc\u30c9\u3078\u306e\u5149\u5b50\u306e\u81ea\u7136\u653e\u51fa\u306b\u3088\u3063\u3066\u5f15\u304d\u8d77\u3053\u3055\u308c\u308b\u3002\u3053\u308c\u306f\u3001\u4fee\u6b63Schawlow-Townes\u5f0f\u3067\u8a18\u8ff0\u3055\u308c\u308b\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">$$Delta \u21aaNu = \u207f\u207f v_g^2 \u207f\u207f (1 + \u207f\u03b1_H^2)}{4 \u207fpi P}$$<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u3053\u3067\u3001$\u306f\u30d8\u30f3\u30ea\u30fc\u7dda\u5e45\u62e1\u5927\u4fc2\u6570\u3067\u3042\u308a\u3001\u5c48\u6298\u7387\u3068\u30ad\u30e3\u30ea\u30a2\u5bc6\u5ea6\u63fa\u3089\u304e\u306e\u9593\u306e\u7d50\u5408\u3092\u8aac\u660e\u3059\u308b\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3053\u306e\u7dda\u5e45\u3092\u6700\u5c0f\u5316\u3059\u308b\u305f\u3081\u306b\u3001\u30e1\u30fc\u30ab\u30fc\u306fInGaAsP\/InP\u5c64\u306e \u201c\u91cf\u5b50\u4e95\u6238 \u201d\u8a2d\u8a08\u3092\u6700\u9069\u5316\u3057\u3001$\u03b1_H$\u30d5\u30a1\u30af\u30bf\u30fc\u3092\u4e0b\u3052\u308b\u5fc5\u8981\u304c\u3042\u308b\u3002\u3055\u3089\u306b\u3001\u5171\u632f\u5668\u5185\u306e\u30d1\u30ef\u30fc$P$\u3092\u6700\u5927\u5316\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u304c\u3001\u3053\u308c\u306f\u30c8\u30ec\u30fc\u30c9\u30aa\u30d5\u306b\u3064\u306a\u304c\u308b\u3002\u30d1\u30ef\u30fc\u304c\u9ad8\u304f\u306a\u308b\u3068\u3001\u30b0\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u5168\u4f53\u306b\u71b1\u52fe\u914d\u304c\u767a\u751f\u3059\u308b\u30ea\u30b9\u30af\u304c\u9ad8\u307e\u308a\u3001\u5468\u6ce2\u6570\u300c\u30c1\u30e3\u30fc\u30d7\u300d\u3084\u30e2\u30fc\u30c9\u30db\u30c3\u30d4\u30f3\u30b0\u3055\u3048\u3082\u5f15\u304d\u8d77\u3053\u3059\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002\u3053\u306e\u305f\u3081 <strong><a class=\"wpil_keyword_link\" href=\"https:\/\/laserdiode-ld.com\/product-category\/multi-mode-fiber-detachable-laser-module\"   title=\"\u30de\u30eb\u30c1\u30e2\u30fc\u30c9\u30d5\u30a1\u30a4\u30d0\u30fc\u7740\u8131\u5f0f\u30ec\u30fc\u30b6\u30fc\u30e2\u30b8\u30e5\u30fc\u30eb\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"549\">\u30d5\u30a1\u30a4\u30d0\u30fc\u7d50\u5408\u578b\u30ec\u30fc\u30b6\u30fc\u30e2\u30b8\u30e5\u30fc\u30eb<\/a><\/strong> \u306f\u3001\u534a\u5c0e\u4f53\u306e\u7269\u7406\u5b66\u305d\u306e\u3082\u306e\u3068\u540c\u3058\u304f\u3089\u3044\u91cd\u8981\u3067\u3042\u308b\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u5b9f\u88c5\u30d0\u30bf\u30d5\u30e9\u30a4\u30fb\u30d1\u30c3\u30b1\u30fc\u30b8\u30f3\u30b0\u3068\u5149\u7d76\u7e01<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">DFB\u30c1\u30c3\u30d7\u306f\u3001\u6b21\u306e\u3088\u3046\u306b\u7d71\u5408\u3055\u308c\u308b\u3002 <strong><a class=\"wpil_keyword_link\" href=\"https:\/\/laserdiode-ld.com\/product-category\/single-mode-fiber-coupled-laser-module\"   title=\"\u30b7\u30f3\u30b0\u30eb\u30e2\u30fc\u30c9\u30d5\u30a1\u30a4\u30d0\u30fc\u7d50\u5408\u578b\u30ec\u30fc\u30b6\u30fc\u30e2\u30b8\u30e5\u30fc\u30eb\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"552\">\u30d5\u30a1\u30a4\u30d0\u30fc\u7d50\u5408\u5149\u53d7\u4fe1\u6a5f<\/a><\/strong> \u307e\u305f\u306f\u30c8\u30e9\u30f3\u30b9\u30df\u30c3\u30bf\u30fc\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u30d1\u30c3\u30b1\u30fc\u30b8\u30f3\u30b0\u306f\u5149\u6e90\u306e\u30b9\u30da\u30af\u30c8\u30eb\u30a4\u30f3\u30c6\u30b0\u30ea\u30c6\u30a3\u3092\u4fdd\u8b77\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u300214\u30d4\u30f3\u306e\u30d0\u30bf\u30d5\u30e9\u30a4\u30fb\u30d1\u30c3\u30b1\u30fc\u30b8\u306f\u3001\u3044\u304f\u3064\u304b\u306e\u7406\u7531\u304b\u3089DFB\u30ec\u30fc\u30b6\u30fc\u306e\u696d\u754c\u6a19\u6e96\u3068\u306a\u3063\u3066\u3044\u307e\u3059\uff1a<\/p>\n\n\n\n<ol start=\"1\" class=\"wp-block-list\">\n<li><strong>\u71b1\u5e73\u8861\uff1a<\/strong> \u5185\u90e8\u306e\u30b5\u30fc\u30e2\u30a8\u30ec\u30af\u30c8\u30ea\u30c3\u30af\u30fb\u30af\u30fc\u30e9\u30fc\uff08TEC\uff09\u306f\u3001\u30df\u30ea\u30b1\u30eb\u30d3\u30f3\u306e\u7cbe\u5ea6\u3067\u30c1\u30c3\u30d7\u6e29\u5ea6\u3092\u7dad\u6301\u3059\u308b\u3002DFB\u30ec\u30fc\u30b6\u30fc\u306e\u6ce2\u9577\u306f\uff5e0.1nm\/\u2103\u3067\u30b7\u30d5\u30c8\u3059\u308b\u305f\u3081\u3001\u6e29\u5ea6\u5b89\u5b9a\u6027\u304c\u5468\u6ce2\u6570\u5b89\u5b9a\u6027\u3092\u78ba\u4fdd\u3059\u308b\u552f\u4e00\u306e\u65b9\u6cd5\u3067\u3059\u3002.<\/li>\n\n\n\n<li><strong>\u30d0\u30c3\u30af\u30ea\u30d5\u30ec\u30af\u30b7\u30e7\u30f3\u30fb\u30de\u30cd\u30b8\u30e1\u30f3\u30c8\uff1a<\/strong> DFB\u30ec\u30fc\u30b6\u30fc\u306f\u3001\u5149\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u306b\u5bfe\u3057\u3066\u6975\u3081\u3066\u654f\u611f\u3067\u3059\u3002\u30d5\u30a1\u30a4\u30d0\u30fc\u30b3\u30cd\u30af\u30bf\u30fc\u304b\u3089\u306e-30dB\u306e\u53cd\u5c04\u3067\u3055\u3048\u3001\u5185\u90e8\u306e\u30b0\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u3092\u4e0d\u5b89\u5b9a\u306b\u3057\u3001\u7dda\u5e45\u306e\u62e1\u5927\u3084\u5468\u6ce2\u6570\u306e\u4e0d\u5b89\u5b9a\u5316\u3092\u5f15\u304d\u8d77\u3053\u3057\u307e\u3059\u3002\u30d7\u30ed\u4ed5\u69d8\u306eDFB\u30e2\u30b8\u30e5\u30fc\u30eb\u306b\u306f\u3001\u5185\u90e8\u5149\u30a2\u30a4\u30bd\u30ec\u30fc\u30bf\u30fc\uff08\u591a\u304f\u306e\u5834\u5408\u30c7\u30e5\u30a2\u30eb\u30b9\u30c6\u30fc\u30b8\uff09\u304c\u7d44\u307f\u8fbc\u307e\u308c\u3066\u304a\u308a\u300140dB\u4ee5\u4e0a\u306e\u30a2\u30a4\u30bd\u30ec\u30fc\u30b7\u30e7\u30f3\u3092\u5b9f\u73fe\u3057\u3066\u3044\u307e\u3059\u3002.<\/li>\n\n\n\n<li><strong>RF\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u30fb\u30de\u30c3\u30c1\u30f3\u30b0\uff1a<\/strong> \u9ad8\u901f\u5909\u8abf\uff08\u6700\u592710GHz\u4ee5\u4e0a\uff09\u306e\u5834\u5408\u3001\u300c\u30b8\u30c3\u30bf\u30fc\u300d\u3084\u4f4d\u76f8\u30ce\u30a4\u30ba\u306e\u539f\u56e0\u3068\u306a\u308b\u4fe1\u53f7\u306e\u53cd\u5c04\u3092\u9632\u3050\u305f\u3081\u3001\u30d1\u30c3\u30b1\u30fc\u30b8\u306f50\u03a9\u306e\u30a4\u30f3\u30d4\u30fc\u30c0\u30f3\u30b9\u30fb\u30de\u30c3\u30c1\u3092\u63d0\u4f9b\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u54c1\u8cea\u3068\u30b7\u30b0\u30ca\u30eb\u30a4\u30f3\u30c6\u30b0\u30ea\u30c6\u30a3\u306e\u6bd4\u8f03\uff1a\u30b3\u30b9\u30c8\u5206\u6790<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">DAS\uff08\u5206\u6563\u578b\u30a2\u30b3\u30fc\u30b9\u30c6\u30a3\u30c3\u30af\u30fb\u30bb\u30f3\u30b7\u30f3\u30b0\uff09\u5e02\u5834\u3067\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u3053\u3068\u304c\u884c\u308f\u308c\u3066\u3044\u308b\u3002 <strong><a class=\"wpil_keyword_link\" href=\"https:\/\/laserdiode-ld.com\/product-category\/single-mode-laser-diode\"   title=\"\u30b7\u30f3\u30b0\u30eb\u30e2\u30fc\u30c9\u30ec\u30fc\u30b6\u30fc\u30c0\u30a4\u30aa\u30fc\u30c9\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"551\">\u72ed\u7dda\u5e45\u30ec\u30fc\u30b6\u30fc\u30c0\u30a4\u30aa\u30fc\u30c9<\/a><\/strong> \u306f\u3001\u30a4\u30f3\u30c6\u30ed\u30b2\u30fc\u30bf\u30fc\u30fb\u30e6\u30cb\u30c3\u30c8\u306e\u4e2d\u3067\u6700\u3082\u9ad8\u4fa1\u306a\u5358\u4e00\u90e8\u54c1\u3067\u3042\u308b\u3053\u3068\u304c\u591a\u3044\u3002\u30b7\u30b9\u30c6\u30e0\u30fb\u30a4\u30f3\u30c6\u30b0\u30ec\u30fc\u30bf\u30fc\u306b\u3068\u3063\u3066\u306f\u3001\u3088\u308a\u4f4e\u30b3\u30b9\u30c8\u306eDFB\u30e2\u30b8\u30e5\u30fc\u30eb\u3092\u8abf\u9054\u3057\u305f\u304f\u306a\u308b\u3002\u3057\u304b\u3057\u3001\u201cCost of Quality \u201d\u306f\u3001\u6700\u7d42\u7684\u306a\u30b7\u30b9\u30c6\u30e0\u306eSN\u6bd4\u306b\u73fe\u308c\u308b\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4f4e\u30b3\u30b9\u30c8\u306eDFB\u30ec\u30fc\u30b6\u30fc\u306e\u7dda\u5e45\u306f5MHz\u3001SMSR\u306f35dB\u304b\u3082\u3057\u308c\u306a\u3044\u3002\u3053\u308c\u306f\u57fa\u672c\u7684\u306a\u30c7\u30fc\u30bf\u4f1d\u9001\u306b\u306f\u5341\u5206\u3068\u601d\u308f\u308c\u308b\u304c\u3001\u30d1\u30a4\u30d7\u30e9\u30a4\u30f3\u306e\u76e3\u8996\u306b\u4f7f\u7528\u3055\u308c\u308bDAS\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u3053\u306e5MHz\u306e\u7dda\u5e45\u306f\u9ad8\u3044 \u201c\u4f4d\u76f8\u30ce\u30a4\u30ba\u30d5\u30ed\u30a2 \u201d\u3092\u3082\u305f\u3089\u3059\u3002\u3053\u306e\u30ce\u30a4\u30ba\u306f\u3001\u6f0f\u6c34\u3084\u7b2c\u4e09\u8005\u306e\u4fb5\u5165\u306b\u3088\u3063\u3066\u5f15\u304d\u8d77\u3053\u3055\u308c\u308b\u5c0f\u3055\u306a\u97f3\u97ff\u632f\u52d5\u3092\u96a0\u3057\u3066\u3057\u307e\u3046\u3002\u8ca7\u5f31\u306a\u30ec\u30fc\u30b6\u30fc\u3092\u88dc\u3046\u305f\u3081\u306b\u3001\u30b7\u30b9\u30c6\u30e0\u958b\u767a\u8005\u306f\u3088\u308a\u9ad8\u4fa1\u306a\u4f4e\u30ce\u30a4\u30ba\u30fb\u30a2\u30f3\u30d7\u3068\u8907\u96d1\u306a\u30c7\u30b8\u30bf\u30eb\u4fe1\u53f7\u51e6\u7406\uff08DSP\uff09\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306b\u6295\u8cc7\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002\u5bfe\u7167\u7684\u306b\u3001\u9ad8\u7d1a\u3067\u4f4e\u4f4d\u76f8\u30ce\u30a4\u30ba\u306e <strong>1550nm DFB\u30ec\u30fc\u30b6\u30fc<\/strong> \u3053\u308c\u306b\u3088\u308a\u3001\u4e0b\u6d41\u306e\u96fb\u5b50\u6a5f\u5668\u304c\u5927\u5e45\u306b\u7c21\u7d20\u5316\u3055\u308c\u3001\u30b7\u30b9\u30c6\u30e0\u306e\u300c\u691c\u51fa\u78ba\u7387\u300d\u304c\u5411\u4e0a\u3057\u3001\u6700\u7d42\u7684\u306b\u30bb\u30f3\u30b5\u30fc\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u7dcf\u30b3\u30b9\u30c8\u304c\u524a\u6e1b\u3055\u308c\u308b\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30b1\u30fc\u30b9\u30b9\u30bf\u30c7\u30a3\u6d77\u5e95\u96fb\u529b\u30b1\u30fc\u30d6\u30eb\u76e3\u8996\u7528DAS<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">\u9867\u5ba2\u306e\u80cc\u666f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3042\u308b\u6d0b\u4e0a\u98a8\u529b\u767a\u96fb\u4e8b\u696d\u8005\u306f\u300150km\u306b\u53ca\u3076\u6d77\u5e95\u9ad8\u5727\u9001\u96fb\u30b1\u30fc\u30d6\u30eb\u306e\u5b8c\u5168\u6027\u3092\u76e3\u8996\u3059\u308b\u305f\u3081\u3001\u5206\u6563\u578b\u97f3\u97ff\u30bb\u30f3\u30b7\u30f3\u30b0\uff08DAS\uff09\u30b7\u30b9\u30c6\u30e0\u3092\u5fc5\u8981\u3068\u3057\u3066\u3044\u305f\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u6280\u8853\u7684\u306a\u8ab2\u984c\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u4e3b\u306a\u8ab2\u984c\u306f\u3001\u5f8c\u65b9\u6563\u4e71\u30ec\u30a4\u30ea\u30fc\u4fe1\u53f7\u306e\u6e1b\u8870\u3060\u3063\u305f\u300250km\u3092\u8d85\u3048\u308b\u3068\u3001\u30d5\u30a1\u30a4\u30d0\u30fc\u7d50\u5408\u306e\u5149\u30ec\u30b7\u30fc\u30d0\u30fc\u306b\u623b\u3063\u3066\u304f\u308b\u4fe1\u53f7\u306f\u4fe1\u3058\u3089\u308c\u306a\u3044\u307b\u3069\u5f31\u304f\u306a\u308b\u3002.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u554f\u984c\uff1a<\/strong> \u65e2\u5b58\u306e\u30ec\u30fc\u30b6\u30fc\u5149\u6e90\u306e\u7dda\u5e45\u306f2MHz\u3067\u3001\u4f4d\u76f8\u30ce\u30a4\u30ba\u304c\u652f\u914d\u7684\u306b\u306a\u308b\u307e\u3067\u306e\u691c\u77e5\u7bc4\u56f2\u306f30km\u306b\u5236\u9650\u3055\u308c\u3066\u3044\u305f\u3002.<\/li>\n\n\n\n<li><strong>\u8981\u4ef6<\/strong> \u7dda\u5e4550 dB\uff09\u3001\u7d76\u5bfe\u6ce2\u9577\u5b89\u5b9a\u6027\u3092\u6301\u3064\u30ec\u30fc\u30b6\u30fc\u3067\u3001\u97f3\u97ff\u51e6\u7406\u88c5\u7f6e\u3067\u306e\u300c\u507d\u967d\u6027\u300d\u3092\u9632\u3050\u3002.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u6280\u8853\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u3068\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>\u30bd\u30fc\u30b9:<\/strong> 1550nm\u8d85\u72ed\u7dda\u5e45DFB\u30d5\u30a1\u30a4\u30d0\u30fc\u7d50\u5408\u30ec\u30fc\u30b6\u30fc.<\/li>\n\n\n\n<li><strong>\u30d5\u30a1\u30a4\u30d0\u30fc\u3060\uff1a<\/strong> PM1550\uff08\u504f\u6ce2\u4fdd\u6301\uff09\u306f\u3001\u30bb\u30f3\u30b5\u30fc\u30fb\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u504f\u6ce2\u8a98\u8d77\u30d5\u30a7\u30fc\u30b8\u30f3\u30b0\uff08PIF\uff09\u3092\u9664\u53bb\u3059\u308b\u3002.<\/li>\n\n\n\n<li><strong>\u5b64\u7acb\u3057\u3066\u3044\u308b\uff1a<\/strong> \u30c7\u30e5\u30a2\u30eb\u30b9\u30c6\u30fc\u30b8\u30fb\u30a4\u30f3\u30bf\u30fc\u30ca\u30eb\u30fb\u30a2\u30a4\u30bd\u30ec\u30fc\u30bf\u30fc\uff08&gt;55 dB \u30a2\u30a4\u30bd\u30ec\u30fc\u30b7\u30e7\u30f3\uff09\u3002.<\/li>\n\n\n\n<li><strong>\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3059\u308b\uff1a<\/strong> \u30ea\u30c3\u30d7\u30eb1uA\u672a\u6e80\u306e\u4f4e\u30ce\u30a4\u30ba\u5b9a\u96fb\u6d41\u30c9\u30e9\u30a4\u30d0\u30fc\u3002.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">\u54c1\u8cea\u7ba1\u7406\uff08QC\uff09\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3\uff1a<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u3059\u3079\u3066\u306e <a class=\"wpil_keyword_link\" href=\"https:\/\/laserdiode-ld.com\/\"   title=\"\u30db\u30fc\u30e0\" data-wpil-keyword-link=\"linked\"  data-wpil-monitor-id=\"554\">\u30ec\u30fc\u30b6\u30fc\u30e2\u30b8\u30e5\u30fc\u30eb<\/a> \u306f\u300125km\u306e\u9045\u5ef6\u30d5\u30a1\u30a4\u30d0\u30fc\u3092\u7528\u3044\u305fDSH\uff08Delayed Self-Heterodyne\uff09\u6cd5\u306b\u3088\u308b\u300c\u7dda\u5e45\u7279\u6027\u8a55\u4fa1\u300d\u3092\u53d7\u3051\u305f\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30ed\u30fc\u30ec\u30f3\u30c4\u7dda\u5e45\u304c80kHz\u672a\u6e80\u306e\u30c1\u30c3\u30d7\u306e\u307f\u304c\u4f7f\u7528\u3055\u308c\u308b\u3053\u3068\u304c\u78ba\u8a8d\u3055\u308c\u305f\u3002\u307e\u305f\u3001TEC\u3068\u30b5\u30fc\u30df\u30b9\u30bf\u304c\u5b8c\u5168\u306b\u6821\u6b63\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u305f\u3081\u3001\u6e29\u5ea6\u5909\u5316\u306e\u3042\u308b\u74b0\u5883\u306772\u6642\u9593\u306b\u308f\u305f\u3063\u3066\u300c\u5468\u6ce2\u6570\u5b89\u5b9a\u6027\u300d\u30c6\u30b9\u30c8\u3092\u5b9f\u65bd\u3057\u305f\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u7d50\u8ad6<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u8d85\u72ed\u7dda\u5e45\u306e\u504f\u6ce2\u4fdd\u6301\u30d5\u30a1\u30a4\u30d0\u30fc\u30ec\u30fc\u30b6\u30fc\u3092\u5c0e\u5165\u3059\u308b\u3053\u3068\u3067\u3001\u9867\u5ba2\u306f\u5149\u5897\u5e45\u5668\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u306a\u304f\u3001\u30bb\u30f3\u30b7\u30f3\u30b0\u7bc4\u56f2\u309255km\u307e\u3067\u62e1\u5927\u3057\u305f\u3002SMSR\u306e\u6539\u5584\u306b\u3088\u308a\u300c\u30b3\u30d2\u30fc\u30ec\u30f3\u30c8\u30fb\u30d5\u30a7\u30fc\u30b8\u30f3\u30b0\u300d\u30ce\u30a4\u30ba\u304c\u6e1b\u5c11\u3057\u305f\u305f\u3081\u3001\u30b7\u30b9\u30c6\u30e0\u306f\u30b1\u30fc\u30d6\u30eb\u306e\u632f\u52d5\u309210\u30ca\u30ce\u30b9\u30c8\u30ec\u30a4\u30f3\u306e\u5206\u89e3\u80fd\u3067\u691c\u51fa\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u30c7\u30fc\u30bf\u30c6\u30fc\u30d6\u30ebDFB\u30ec\u30fc\u30b6\u30fc\u306e\u6027\u80fd\u4ed5\u69d8<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><td><strong>\u30d1\u30e9\u30e1\u30fc\u30bf<\/strong><\/td><td><strong>\u30e6\u30cb\u30c3\u30c8<\/strong><\/td><td><strong>\u30b9\u30bf\u30f3\u30c0\u30fc\u30c9DFB<\/strong><\/td><td><strong>\u72ed\u7dda\u5e45DFB<\/strong><\/td><td><strong>\u5916\u90e8\u30ad\u30e3\u30d3\u30c6\u30a3\uff08ECL\uff09<\/strong><\/td><\/tr><\/thead><tbody><tr><td><strong>\u4e2d\u5fc3\u6ce2\u9577<\/strong><\/td><td>nm<\/td><td>1550 \u00b1 2<\/td><td>1550 \u00b1 0.5<\/td><td>1550 \u00b1 0.01<\/td><\/tr><tr><td><strong>\u7dda\u5e45\uff08FWHM\uff09<\/strong><\/td><td>\u30ad\u30ed\u30d8\u30eb\u30c4<\/td><td>1,000 &#8211; 5,000<\/td><td>50 &#8211; 500<\/td><td>&lt; 10<\/td><\/tr><tr><td><strong>SMSR<\/strong><\/td><td>dB<\/td><td>&gt; 35<\/td><td>&gt; 45<\/td><td>&gt; 55<\/td><\/tr><tr><td><strong>\u51fa\u529b\uff08\u30d5\u30a1\u30a4\u30d0\u30fc\uff09<\/strong><\/td><td>\u30e1\u30fc\u30c8\u30eb\u30c0\u30d6\u30ea\u30e5\u30fc<\/td><td>10 &#8211; 40<\/td><td>10 &#8211; 60<\/td><td>10 &#8211; 30<\/td><\/tr><tr><td><strong>\u76f8\u5bfe\u5f37\u5ea6\u30ce\u30a4\u30ba\uff08RIN\uff09<\/strong><\/td><td>dB\/Hz<\/td><td>-145<\/td><td>-155<\/td><td>-160<\/td><\/tr><tr><td><strong>\u5468\u6ce2\u6570\u5b89\u5b9a\u5ea6<\/strong><\/td><td>MHz\/\u00b0C<\/td><td>12,000 (0.1nm)<\/td><td>&lt; 1,000 (TEC)<\/td><td>&lt; 100 (TEC)<\/td><\/tr><tr><td><strong>\u4f4d\u76f8\u30ce\u30a4\u30ba\u30fb\u30d5\u30ed\u30a2<\/strong><\/td><td>rad\/\u221aHz<\/td><td>$10^{-4}$<\/td><td>$10^{-6}$<\/td><td>$10^{-7}$<\/td><\/tr><tr><td><strong>\u30d1\u30c3\u30b1\u30fc\u30b8\u30bf\u30a4\u30d7<\/strong><\/td><td>&#8211;<\/td><td>\u540c\u8ef8\uff0f\u30d0\u30bf\u30d5\u30e9\u30a4<\/td><td>\u30d0\u30bf\u30d5\u30e9\u30a4<\/td><td>\u30d0\u30bf\u30d5\u30e9\u30a4\uff0f\u30b7\u30e3\u30b7\u30fc<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">\u30d7\u30ed\u30d5\u30a7\u30c3\u30b7\u30e7\u30ca\u30ebFAQ\uff1aDFB\u3068\u72ed\u7dda\u5e45\u30b7\u30b9\u30c6\u30e0<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Q1: \u300c\u7dda\u5e45\u300d\u3068\u300c\u30b9\u30da\u30af\u30c8\u30eb\u5e45\u300d\u306e\u9055\u3044\u306f\u4f55\u3067\u3059\u304b\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u5206\u5e03\u5e30\u9084\u578b\u30ec\u30fc\u30b6\u30fc\u306e\u5834\u5408\u3001\u201c\u30b9\u30da\u30af\u30c8\u30eb\u5e45 \u201d\u306f\u30b5\u30a4\u30c9\u30e2\u30fc\u30c9\u3092\u542b\u3080\u5e83\u3044\u5305\u7d61\u7dda\uff08-20 dB\u3067\u6e2c\u5b9a\uff09\u3092\u6307\u3059\u3053\u3068\u304c\u591a\u304f\u3001\u201c\u7dda\u5e45 \u201d\u306f\u4e2d\u592e\u306e\u30ec\u30fc\u30b6\u30fc\u30d4\u30fc\u30af\u306e\u5e45\uff08FWHM\u3067\u6e2c\u5b9a\uff09\u3092\u6307\u3057\u307e\u3059\u3002\u5358\u4e00\u5468\u6ce2\u6570\u30ec\u30fc\u30b6\u30fc\u306e\u5834\u5408\u3001\u7dda\u5e45\u306f\u30b3\u30d2\u30fc\u30ec\u30f3\u30b9\u306b\u3068\u3063\u3066\u91cd\u8981\u306a\u6307\u6a19\u3068\u306a\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Q2: \u306a\u305cDFB\u30ec\u30fc\u30b6\u30fc\u306b\u306f\u30a2\u30a4\u30bd\u30ec\u30fc\u30bf\u304c\u5fc5\u8981\u306a\u306e\u3067\u3059\u304b\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">DFB\u30ec\u30fc\u30b6\u30fc\u306f\u3001\u30d5\u30a3\u30fc\u30c9\u30d0\u30c3\u30af\u3092\u5185\u90e8\u30b0\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u306b\u4f9d\u5b58\u3057\u3066\u3044\u308b\u3002\u30d5\u30a1\u30a4\u30d0\u30fc\u30fb\u30c1\u30c3\u30d7\u3084\u30df\u30e9\u30fc\u304b\u3089\u306e\uff09\u5916\u90e8\u53cd\u5c04\u306f\u300c\u7b2c\u4e8c\u5171\u632f\u5668\u300d\u3068\u3057\u3066\u6a5f\u80fd\u3057\u3001\u5185\u90e8\u30b0\u30ec\u30fc\u30c6\u30a3\u30f3\u30b0\u3068\u5e72\u6e09\u3059\u308b\u3002\u3053\u308c\u304c\u300c\u5149\u30ab\u30aa\u30b9\u300d\u3092\u5f15\u304d\u8d77\u3053\u3057\u3001\u5468\u6ce2\u6570\u306e\u7a81\u7136\u306e\u30b8\u30e3\u30f3\u30d7\u3068\u4f4d\u76f8\u96d1\u97f3\u306e\u5927\u5e45\u306a\u5897\u52a0\u306b\u3064\u306a\u304c\u308b\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Q3: 1550nm\u306eDFB\u30ec\u30fc\u30b6\u30fc\u306f\u30c1\u30e5\u30fc\u30cb\u30f3\u30b0\u3067\u304d\u307e\u3059\u304b\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u306f\u3044\u3001\u3057\u304b\u3057\u308f\u305a\u304b\u3067\u3059\u3002TEC\u3092\u4ecb\u3057\u3066\u30c1\u30c3\u30d7\u306e\u6e29\u5ea6\u3092\u5909\u3048\u308b\u3053\u3068\u3067\u3001\u534a\u5c0e\u4f53\u306e\u5c48\u6298\u7387\u304c\u5909\u5316\u3057\u3001\u30d6\u30e9\u30c3\u30b0\u6ce2\u9577\u304c\u6442\u6c0f1\u5ea6\u306b\u3064\u304d\u7d040.1nm\u305a\u308c\u307e\u3059\u3002\u6a19\u6e96\u7684\u306a\u8abf\u6574\u7bc4\u56f2\u306f\u00b11nm\u304b\u3089\u00b12nm\u3067\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Q4\uff1a\u300c\u30e2\u30fc\u30c9\u30fb\u30db\u30c3\u30d4\u30f3\u30b0\u300d\u3068\u306f\u4f55\u3067\u3059\u304b\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u30e2\u30fc\u30c9\u30db\u30c3\u30d4\u30f3\u30b0\u306f\u3001\u30ec\u30fc\u30b6\u30fc\u304c\u76ee\u7684\u306e\u30d6\u30e9\u30c3\u30b0\u30e2\u30fc\u30c9\u304b\u3089\u96a3\u306e\u7e26\u30e2\u30fc\u30c9\u3078\u7a81\u7136\u30b8\u30e3\u30f3\u30d7\u3059\u308b\u3053\u3068\u3067\u767a\u751f\u3059\u308b\u3002\u3053\u308c\u306b\u3088\u308a\u3001\u30bb\u30f3\u30b5\u30fc\u30fb\u30c7\u30fc\u30bf\u306b\u5927\u304d\u306a\u4e0d\u9023\u7d9a\u6027\u304c\u751f\u3058\u307e\u3059\u3002\u9ad8\u54c1\u8cea\u306eDFB\u30a8\u30f3\u30b8\u30cb\u30a2\u30ea\u30f3\u30b0\u306f\u3001\u96fb\u6d41\u3068\u6e29\u5ea6\u306e\u5168\u7bc4\u56f2\u306b\u308f\u305f\u3063\u3066\u300c\u30ad\u30f3\u30af\u30d5\u30ea\u30fc\u300d\u300c\u30e2\u30fc\u30c9\u30db\u30c3\u30d4\u30f3\u30b0\u30d5\u30ea\u30fc\u300d\u306e\u52d5\u4f5c\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Q5: \u7dda\u5e45\u306f\u3069\u306e\u3088\u3046\u306b\u3057\u3066\u6b63\u78ba\u306b\u6e2c\u5b9a\u3059\u308b\u306e\u3067\u3059\u304b\uff1f<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">100kHz\u306e\u7dda\u5e45\u306f\u6a19\u6e96\u7684\u306a\u5149\u30b9\u30da\u30af\u30c8\u30e9\u30e0\u30a2\u30ca\u30e9\u30a4\u30b6\u30fc\uff08OSA\uff09\u306e\u5206\u89e3\u80fd\u3088\u308a\u306f\u308b\u304b\u306b\u72ed\u3044\u306e\u3067\u3001\u79c1\u305f\u3061\u306f\u300c\u9045\u5ef6\u30bb\u30eb\u30d5\u30d8\u30c6\u30ed\u30c0\u30a4\u30f3\u300d\u5e72\u6e09\u8a08\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002\u30ec\u30fc\u30b6\u30fc\u30d3\u30fc\u30e0\u3092\u5206\u5272\u3057\u3001\u4e00\u65b9\u306e\u7d4c\u8def\u3092\u9577\u3044\u30d5\u30a1\u30a4\u30d0\u30fc\uff08\u30b3\u30d2\u30fc\u30ec\u30f3\u30b9\u9577\u3088\u308a\u9577\u3044\uff09\u3067\u9045\u5ef6\u3055\u305b\u3001\u5143\u306e\u30d3\u30fc\u30e0\u3068\u518d\u7d50\u5408\u3055\u305b\u308b\u3053\u3068\u3067\u3001RF\u30b9\u30da\u30af\u30c8\u30e9\u30e0\u30a2\u30ca\u30e9\u30a4\u30b6\u30fc\u3067\u5206\u6790\u53ef\u80fd\u306a\u30d3\u30fc\u30c8\u4fe1\u53f7\u3092\u751f\u6210\u3059\u308b\u3002.<\/p>","protected":false},"excerpt":{"rendered":"<p>The Architecture of Coherence: Beyond Simple Photon Emission In the specialized field of optoelectronics, the DFB (Distributed Feedback) fiber coupled laser represents the pinnacle of semiconductor spectral control. While standard Fabry-Perot lasers allow multiple longitudinal modes to oscillate within the cavity\u2014resulting in a broad, unstable spectrum\u2014the DFB architecture forces the laser to operate on a single, precise frequency. This is not merely a preference for &#8220;cleaner&#8221; light; for applications such as Distributed Acoustic Sensing (DAS) or coherent optical communications, spectral purity is the fundamental enabler of system performance. The transition from a multi-mode source to a single-frequency 1550nm DFB laser involves a radical shift in cavity physics. Instead of relying [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"themepark_post_bcolor":"#f5f5f5","themepark_post_width":"1022px","themepark_post_img":"","themepark_post_img_po":"left","themepark_post_img_re":false,"themepark_post_img_cover":false,"themepark_post_img_fixed":false,"themepark_post_hide_title":false,"themepark_post_main_b":"","themepark_post_main_p":100,"themepark_paddingblock":false,"footnotes":"","_wpscp_schedule_draft_date":"","_wpscp_schedule_republish_date":"","_wpscppro_advance_schedule":false,"_wpscppro_advance_schedule_date":"","_wpscppro_dont_share_socialmedia":false,"_wpscppro_custom_social_share_image":0,"_facebook_share_type":"","_twitter_share_type":"","_linkedin_share_type":"","_pinterest_share_type":"","_linkedin_share_type_page":"","_instagram_share_type":"","_medium_share_type":"","_threads_share_type":"","_google_business_share_type":"","_selected_social_profile":[],"_wpsp_enable_custom_social_template":false,"_wpsp_social_scheduling":{"enabled":true,"datetime":"2026-02-11 07:30:51","platforms":[],"status":"pending_publication","dateOption":"today","timeOption":"now","customDays":"","customHours":"","customDate":"","customTime":"","schedulingType":"absolute"},"_wpsp_active_default_template":true},"categories":[17],"tags":[865],"class_list":["post-4216","post","type-post","status-publish","format-standard","hentry","category-industry-trends","tag-narrow-linewidth-laser"],"metadata":{"_edit_lock":["1768462306:1"],"wpil_sync_report3":["1"],"wpil_links_inbound_internal_count":["0"],"wpil_links_inbound_internal_count_data":["eJxLtDKwqq4FAAZPAf4="],"wpil_links_outbound_internal_count":["6"],"wpil_links_outbound_internal_count_data":["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"],"wpil_links_outbound_external_count":["0"],"wpil_links_outbound_external_count_data":["eJxLtDKwqq4FAAZPAf4="],"wpil_sync_report2_time":["2026-01-15T07:31:45+00:00"],"_edit_last":["1"],"_aioseo_title":["Narrow Linewidth DFB Fiber Coupled Laser Engineering Guide"],"_aioseo_description":["Technical analysis of 1550nm DFB fiber coupled lasers. Explore phase noise, SMSR, and frequency stability for DAS and coherent communication systems."],"_aioseo_keywords":["a:0:{}"],"_aioseo_og_title":[""],"_aioseo_og_description":[""],"_aioseo_og_article_section":[""],"_aioseo_og_article_tags":["a:0:{}"],"_aioseo_twitter_title":[""],"_aioseo_twitter_description":[""],"ao_post_optimize":["a:6:{s:16:\"ao_post_optimize\";s:2:\"on\";s:19:\"ao_post_js_optimize\";s:2:\"on\";s:20:\"ao_post_css_optimize\";s:2:\"on\";s:12:\"ao_post_ccss\";s:2:\"on\";s:16:\"ao_post_lazyload\";s:2:\"on\";s:15:\"ao_post_preload\";s:0:\"\";}"],"catce":["sidebar-widgets4"],"_wpsp_is_facebook_share":["on"],"_wpsp_is_twitter_share":["on"],"_wpsp_is_linkedin_share":["on"],"_wpsp_is_pinterest_share":["on"],"_wpsp_social_scheduling":["a:11:{s:7:\"enabled\";b:1;s:8:\"datetime\";s:19:\"2026-02-11 07:30:51\";s:9:\"platforms\";a:0:{}s:6:\"status\";s:19:\"pending_publication\";s:10:\"dateOption\";s:5:\"today\";s:10:\"timeOption\";s:3:\"now\";s:10:\"customDays\";s:0:\"\";s:11:\"customHours\";s:0:\"\";s:10:\"customDate\";s:0:\"\";s:10:\"customTime\";s:0:\"\";s:14:\"schedulingType\";s:8:\"absolute\";}"],"_wpsp_custom_templates":["a:7:{s:8:\"facebook\";a:3:{s:8:\"template\";s:0:\"\";s:8:\"profiles\";a:0:{}s:9:\"is_global\";b:0;}s:7:\"twitter\";a:3:{s:8:\"template\";s:0:\"\";s:8:\"profiles\";a:0:{}s:9:\"is_global\";b:0;}s:8:\"linkedin\";a:3:{s:8:\"template\";s:0:\"\";s:8:\"profiles\";a:0:{}s:9:\"is_global\";b:0;}s:9:\"pinterest\";a:3:{s:8:\"template\";s:0:\"\";s:8:\"profiles\";a:0:{}s:9:\"is_global\";b:0;}s:9:\"instagram\";a:3:{s:8:\"template\";s:0:\"\";s:8:\"profiles\";a:0:{}s:9:\"is_global\";b:0;}s:6:\"medium\";a:3:{s:8:\"template\";s:0:\"\";s:8:\"profiles\";a:0:{}s:9:\"is_global\";b:0;}s:7:\"threads\";a:3:{s:8:\"template\";s:0:\"\";s:8:\"profiles\";a:0:{}s:9:\"is_global\";b:0;}}"],"views":["1040"]},"aioseo_notices":[],"medium_url":false,"thumbnail_url":false,"full_url":false,"_links":{"self":[{"href":"https:\/\/laserdiode-ld.com\/ja\/wp-json\/wp\/v2\/posts\/4216","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/laserdiode-ld.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/laserdiode-ld.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/laserdiode-ld.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/laserdiode-ld.com\/ja\/wp-json\/wp\/v2\/comments?post=4216"}],"version-history":[{"count":2,"href":"https:\/\/laserdiode-ld.com\/ja\/wp-json\/wp\/v2\/posts\/4216\/revisions"}],"predecessor-version":[{"id":4219,"href":"https:\/\/laserdiode-ld.com\/ja\/wp-json\/wp\/v2\/posts\/4216\/revisions\/4219"}],"wp:attachment":[{"href":"https:\/\/laserdiode-ld.com\/ja\/wp-json\/wp\/v2\/media?parent=4216"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/laserdiode-ld.com\/ja\/wp-json\/wp\/v2\/categories?post=4216"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/laserdiode-ld.com\/ja\/wp-json\/wp\/v2\/tags?post=4216"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}