{"id":22195,"date":"2026-09-15T08:41:01","date_gmt":"2026-09-15T00:41:01","guid":{"rendered":"https:\/\/www.luleey.com\/?p=22195"},"modified":"2026-09-15T08:41:05","modified_gmt":"2026-09-15T00:41:05","slug":"fiber-loss-higher-at-1550nm-than-1310nm-why","status":"publish","type":"post","link":"https:\/\/www.luleey.com\/ja\/fiber-loss-higher-at-1550nm-than-1310nm-why\/","title":{"rendered":"1550nm\u3067\u306f1310nm\u3088\u308a\u3082\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u640d\u5931\u304c\u5927\u304d\u3044\uff1a\u305d\u306e\u7406\u7531\u306f\uff1f"},"content":{"rendered":"<p class=\"wp-block-wd-paragraph wd-8d76e101\">\u3082\u3057\u898b\u3064\u3051\u305f\u3089 <strong><a style=\"color: #FF6A00;\" target=\"_blank\" href=\"https:\/\/www.luleey.com\/ja\/tag\/fiber-loss\/\" title=\"\u300c\u30d5\u30a1\u30a4\u30d0\u30fc\u30ed\u30b9\u300d\u306e\u6295\u7a3f\u3092\u3059\u3079\u3066\u8868\u793a\">\u30d5\u30a1\u30a4\u30d0\u30fc\u640d\u5931<\/a> \uff5e\u3088\u308a\u9ad8\u3044 <a style=\"color: #FF6A00;\" target=\"_blank\" href=\"https:\/\/www.luleey.com\/ja\/tag\/1550nm\/\" title=\"1550nm\u306e\u3059\u3079\u3066\u306e\u6295\u7a3f\u3092\u8868\u793a\">1550nm<\/a> \u3088\u308a\u3082 <a style=\"color: #FF6A00;\" target=\"_blank\" href=\"https:\/\/www.luleey.com\/ja\/tag\/1310nm\/\" title=\"1310nm\u306e\u3059\u3079\u3066\u306e\u6295\u7a3f\u3092\u8868\u793a\">1310nm<\/a><\/strong>, \u3001\u66f2\u3052\u3084\u30b1\u30fc\u30d6\u30eb\u306e\u5fdc\u529b\u306f\u3001\u6700\u521d\u306b\u8abf\u67fb\u3059\u3079\u304d\u4e8b\u9805\u306e\u4e00\u3064\u3067\u3059\u3002\u6ce2\u9577\u304c\u9577\u3044\u307b\u3069\u3001\u4e00\u822c\u7684\u306b <a style=\"color: #FF6A00;\" target=\"_blank\" href=\"https:\/\/www.luleey.com\/ja\/tag\/macrobend\/\" title=\"Macrobend\u306e\u3059\u3079\u3066\u306e\u6295\u7a3f\u3092\u8868\u793a\">\u30de\u30af\u30ed\u30d9\u30f3\u30c9<\/a>\u305d\u306e\u305f\u3081\u3001\u30eb\u30fc\u30d7\u304c\u304d\u3064\u304b\u3063\u305f\u308a\u3001\u30b1\u30fc\u30d6\u30eb\u304c\u62bc\u3057\u3064\u3076\u3055\u308c\u3066\u3044\u305f\u308a\u3001\u92ed\u89d2\u306a\u30b3\u30fc\u30ca\u30fc\u304c\u3042\u3063\u305f\u308a\u3001\u30b9\u30d7\u30e9\u30a4\u30b9\u30c8\u30ec\u30a4\u306e\u914d\u7dda\u304c\u4e0d\u9069\u5207\u3060\u3063\u305f\u308a\u3059\u308b\u3068\u30011550nm\u5e2f\u57df\u3067\u5927\u5e45\u306b\u4f59\u5206\u306a\u640d\u5931\u304c\u751f\u3058\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-27656a18\">\u3060\u304b\u3089\u3068\u3044\u3063\u3066\u3001 <a style=\"color: #FF6A00;\" target=\"_blank\" href=\"https:\/\/www.luleey.com\/ja\/tag\/single-mode-fiber-2\/\" title=\"\u300c\u30b7\u30f3\u30b0\u30eb\u30e2\u30fc\u30c9\u30d5\u30a1\u30a4\u30d0\u30fc\u300d\u306e\u3059\u3079\u3066\u306e\u6295\u7a3f\u3092\u8868\u793a\">\u30b7\u30f3\u30b0\u30eb\u30e2\u30fc\u30c9\u30d5\u30a1\u30a4\u30d0\u30fc<\/a> \u5f53\u7136\u306a\u304c\u3089\u30011550nm\u3067\u306f\u6e1b\u8870\u304c\u5927\u304d\u304f\u306a\u308a\u307e\u3059\u3002 \u5f71\u97ff\u3092\u53d7\u3051\u3066\u3044\u306a\u3044G.652D\u30d5\u30a1\u30a4\u30d0\u30fc\u533a\u9593\u3067\u306f\u3001\u901a\u5e38\u306f\u305d\u306e\u9006\u304c\u5f53\u3066\u306f\u307e\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u30011550nm\u306b\u304a\u3051\u308b\u30d5\u30a1\u30a4\u30d0\u30fc\u306e1km\u3042\u305f\u308a\u306e\u6e1b\u8870\u91cf\u306f\u30011310nm\u306e\u5834\u5408\u3088\u308a\u3082\u901a\u5e38\u306f\u4f4e\u304f\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u610f\u5916\u306a\u7d50\u679c\u306f\u3001\u5c40\u6240\u7684\u3067\u6ce2\u9577\u306b\u4f9d\u5b58\u3059\u308b\u640d\u5931\u304c\u3001\u305d\u306e\u901a\u5e38\u306e\u5dee\u3092\u4e0a\u56de\u308b\u5834\u5408\u306b\u751f\u3058\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-d9d8abb9\">2\u3064\u3092\u4f7f\u3063\u3066 <a style=\"color: #FF6A00;\" target=\"_blank\" href=\"https:\/\/www.luleey.com\/ja\/tag\/otdr\/\" title=\"OTDR \u306e\u6295\u7a3f\u3092\u3059\u3079\u3066\u8868\u793a\">OTDR<\/a> \u75d5\u8de1\u306f\u8a3c\u62e0\u3068\u3057\u3066\u6271\u3044\u3001\u7d50\u8ad6\u3068\u3057\u3066\u6271\u3063\u3066\u306f\u306a\u3089\u306a\u3044\u3002\u8ddd\u96e2\u306b\u57fa\u3065\u3044\u3066\u4e8b\u8c61\u3092\u6574\u7406\u3057\u3001\u75d5\u8de1\u306e\u5f62\u72b6\u3092\u7cbe\u67fb\u3057\u3001\u5b9f\u969b\u306e\u7d4c\u8def\u3092\u78ba\u8a8d\u3057\u305f\u4e0a\u3067\u3001\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u8981\u6c42\u3055\u308c\u308b\u8a66\u9a13\u65b9\u6cd5\u306b\u5f93\u3063\u3066\u4fee\u5fa9\u3092\u78ba\u8a8d\u3059\u308b\u3002.<\/p>\n\n\n\n<div class=\"wp-block-wd-image wd-block-image wd-9fc55e18\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"1000\" class=\"wp-image-22197\" src=\"https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/09\/fiber-loss-1550nm-1310nm-hero.png\" alt=\"\" title=\"\" srcset=\"https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/09\/fiber-loss-1550nm-1310nm-hero.png 1000w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/09\/fiber-loss-1550nm-1310nm-hero-800x800.png 800w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/09\/fiber-loss-1550nm-1310nm-hero-400x400.png 400w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/09\/fiber-loss-1550nm-1310nm-hero-768x768.png 768w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/09\/fiber-loss-1550nm-1310nm-hero-12x12.png 12w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/09\/fiber-loss-1550nm-1310nm-hero-150x150.png 150w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/div>\n\n\n\n<h2 class=\"wp-block-wd-title title wd-2810bec8\">1550nm\u3067\u306f1310nm\u3088\u308a\u3082\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u640d\u5931\u304c\u5927\u304d\u3044\uff1a\u7c21\u5358\u306a\u7b54\u3048<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>\u89b3\u5bdf<\/th><th>\u3088\u308a\u59a5\u5f53\u306a\u8aac\u660e<\/th><th>\u6700\u521d\u306b\u78ba\u8a8d\u3059\u3079\u304d\u70b9<\/th><\/tr><\/thead><tbody><tr><td>1550nm\u306f\u3001\u540c\u3058\u8ddd\u96e2\u306b\u304a\u3044\u3066\u975e\u53cd\u5c04\u5149\u306e\u6e1b\u8870\u91cf\u304c\u3088\u308a\u5927\u304d\u3044<\/td><td>\u30de\u30af\u30ed\u30d9\u30f3\u30c9\u307e\u305f\u306f\u5c40\u6240\u7684\u306a\u30b1\u30fc\u30d6\u30eb\u5fdc\u529b<\/td><td>\u305d\u306e\u8ddd\u96e2\u304b\u3089\u3001\u30c8\u30ec\u30a4\u3001\u30eb\u30fc\u30d7\u3001\u7d50\u675f\u90e8\u3001\u89d2\u3001\u307e\u305f\u306f\u56f2\u3044\u90e8\u5206\u3092\u70b9\u691c\u3057\u3066\u304f\u3060\u3055\u3044<\/td><\/tr><tr><td>1550nm\u306e\u30c8\u30ec\u30fc\u30b9\u5168\u4f53\u3067\u3001\u52fe\u914d\u304c\u3088\u308a\u6025\u306b\u306a\u3063\u3066\u3044\u308b<\/td><td>\u5206\u6563\u5fdc\u529b\u3001\u8a66\u9a13\u8a2d\u5b9a\u306e\u8aa4\u308a\u3001\u7570\u5e38\u306a\u7e4a\u7dad\u3001\u307e\u305f\u306f\u8a08\u6e2c\u6a5f\u5668\u306e\u4e0d\u5177\u5408<\/td><td>\u6ce2\u9577\u3001\u8a2d\u5b9a\u3001\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u7a2e\u985e\u3001\u304a\u3088\u3073\u6b63\u5e38\u3067\u3042\u308b\u3053\u3068\u304c\u78ba\u8a8d\u6e08\u307f\u306e\u57fa\u6e96\u4fe1\u53f7\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044<\/td><\/tr><tr><td>1\u304b\u6240\u306e\u30b9\u30d7\u30e9\u30a4\u30b9\u3060\u3051\u3067\u3001\u8a66\u9a13\u65b9\u5411\u306b\u3088\u3063\u3066\u7d50\u679c\u304c\u5927\u304d\u304f\u7570\u306a\u308b<\/td><td>\u5f8c\u65b9\u6563\u4e71\u3084\u30e2\u30fc\u30c9\u30d5\u30a3\u30fc\u30eb\u30c9\u306e\u4e0d\u4e00\u81f4\u304c\u3001OTDR\u306e\u6e2c\u5b9a\u7d50\u679c\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059<\/td><td>\u4e21\u7aef\u304b\u3089\u8a66\u9a13\u3092\u884c\u3044\u3001\u30b9\u30d7\u30e9\u30a4\u30b9\u306e\u6e2c\u5b9a\u5024\uff08\u7b26\u53f7\u4ed8\u304d\uff09\u306e\u5e73\u5747\u3092\u6c42\u3081\u308b<\/td><\/tr><tr><td>\u4e21\u65b9\u306e\u6ce2\u9577\u3067\u92ed\u3044\u53cd\u5c04\u30d4\u30fc\u30af\u304c\u73fe\u308c\u308b<\/td><td>\u30b3\u30cd\u30af\u30bf\u3001\u6a5f\u68b0\u7684\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3001\u958b\u653e\u7aef\u3001\u3042\u308b\u3044\u306f\u6c5a\u67d3\u304c\u767a\u751f\u3057\u3084\u3059\u3044<\/td><td>\u9069\u5207\u306a\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3092\u5b89\u5168\u306b\u70b9\u691c\u30fb\u6e05\u6383\u3059\u308b<\/td><\/tr><tr><td>1550nm\u3067\u30a8\u30f3\u30c9\u30c4\u30fc\u30a8\u30f3\u30c9\u640d\u5931\u304c\u767a\u751f\u3057\u3066\u3044\u308b\u304c\u3001OTDR\u4e0a\u306b\u306f\u660e\u78ba\u306a\u7570\u5e38\u306f\u78ba\u8a8d\u3055\u308c\u306a\u3044<\/td><td>\u3044\u304f\u3064\u304b\u306e\u5c0f\u3055\u306a\u66f2\u304c\u308a\u89d2\u3001\u77ed\u3044\u533a\u9593\u3001\u6e2c\u5b9a\u4e0d\u80fd\u533a\u9593\u3001\u3042\u308b\u3044\u306f\u6e2c\u5b9a\u5024\u306e\u3070\u3089\u3064\u304d<\/td><td>\u91cd\u306d\u5408\u308f\u305b\u305f\u30c8\u30ec\u30fc\u30b9\u3092\u6bd4\u8f03\u3057\u3001\u627f\u8a8d\u6e08\u307f\u306e\u633f\u5165\u640d\u5931\u8a66\u9a13\u3092\u5b9f\u65bd\u3059\u308b<\/td><\/tr><tr><td>1310nm\u30681550nm\u306f\u3001\u540c\u3058\u30a4\u30d9\u30f3\u30c8\u3067\u3068\u3082\u306b\u9ad8\u5024\u3068\u306a\u308b<\/td><td>\u5b9f\u969b\u306e\u63a5\u7d9a\u640d\u5931\u3001\u8457\u3057\u3044\u5c48\u66f2\u3001\u307e\u305f\u306f\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306e\u640d\u50b7<\/td><td>\u4e21\u65b9\u5411\u3001\u53cd\u5c04\u7387\u3001\u304a\u3088\u3073\u7269\u7406\u7684\u306a\u4f4d\u7f6e\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-bd39148f\">\u66f2\u3052\u306e\u6709\u7121\u3092\u8a3c\u660e\u3059\u308b\u3001\u666e\u904d\u7684\u306a\u5dee\u5206\u640d\u5931\u5024\u3068\u3044\u3046\u3082\u306e\u306f\u5b58\u5728\u3057\u307e\u305b\u3093\u3002OTDR\u306e\u4e0d\u78ba\u304b\u3055\u3001\u30d1\u30eb\u30b9\u5e45\u3001\u30de\u30fc\u30ab\u30fc\u306e\u4f4d\u7f6e\u3001\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u7a2e\u985e\u3001\u305d\u3057\u3066\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u306e\u5236\u9650\u6761\u4ef6\u306a\u3069\u3001\u3042\u3089\u3086\u308b\u8981\u7d20\u304c\u5f71\u97ff\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-wd-title title wd-57d06aa4\">2\u7a2e\u985e\u306e\u640d\u5931\u304c\u6bd4\u8f03\u3055\u308c\u3066\u3044\u308b<\/h2>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-f1173f73\">\u300c\u30d5\u30a1\u30a4\u30d0\u30fc\u30ed\u30b9\u300d\u3068\u3044\u3046\u8a00\u8449\u306f\u30012\u3064\u306e\u7570\u306a\u308b\u4e8b\u8c61\u3092\u6307\u3059\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-wd-title title wd-b6361a56\">\u56fa\u6709\u30b9\u30d1\u30f3\u6e1b\u8870<\/h3>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-0b7e3bec\">\u3053\u308c\u306f\u3001\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u9577\u3055\u306b\u6cbf\u3063\u3066\u751f\u3058\u308b\u6f38\u9032\u7684\u306a\u6e1b\u8870\u3067\u3042\u308a\u3001\u901a\u5e38\u306fdB\/km\u3067\u8868\u3055\u308c\u307e\u3059\u3002\u4e00\u822c\u7684\u306a\u4f4e\u6c34\u30d4\u30fc\u30af\u578bG.652D\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u5834\u5408\u30011550nm\u4ed8\u8fd1\u306e\u6e1b\u8870\u91cf\u306f\u901a\u5e38\u30011310nm\u4ed8\u8fd1\u3088\u308a\u3082\u5c0f\u3055\u304f\u306a\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-6cba20aa\">\u4f8b\u3048\u3070\u3001LuLeey\u306e\u8a8d\u8a3c\u6e08\u307f\u30a2\u30ab\u30a6\u30f3\u30c8\u306f <a href=\"https:\/\/www.luleey.com\/ja\/product\/single-mode-fiber-optic-otdr-launch-cable-box-bare-core-g652d-bare-fiber-optic-1-50km\/\">G.652D \u30d9\u30a2\u30d5\u30a1\u30a4\u30d0\u30fc\u304a\u3088\u3073OTDR\u8a66\u9a13\u7528\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u30da\u30fc\u30b8<\/a> \u30ea\u30b9\u30c8\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>1310nm\u306b\u304a\u3051\u308b\u6e1b\u8870\u91cf\uff1a0.36dB\/km\u4ee5\u4e0b<\/li>\n\n\n\n<li>1550nm\u306b\u304a\u3051\u308b\u6e1b\u8870\u91cf\uff1a0.22dB\/km\u4ee5\u4e0b<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-94fab09d\">\u3053\u308c\u3089\u306f\u3001\u63b2\u8f09\u3055\u308c\u3066\u3044\u308b\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u88fd\u54c1\u30da\u30fc\u30b8\u306b\u8a18\u8f09\u3055\u308c\u3066\u3044\u308b\u6700\u5927\u5024\u3067\u3042\u308a\u3001\u8a2d\u7f6e\u3055\u308c\u305f\u3059\u3079\u3066\u306e\u30b1\u30fc\u30d6\u30eb\u306b\u5171\u901a\u3059\u308b\u5024\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u308c\u3089\u306f\u3001\u30af\u30ea\u30fc\u30f3\u30b9\u30d1\u30f3\u3067\u306f1550nm\u3067OTDR\u306e\u30b9\u30ed\u30fc\u30d7\u304c\u7de9\u3084\u304b\u306b\u306a\u308b\u7406\u7531\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-wd-title title wd-216d7d0a\">\u5c40\u6240\u7684\u306a\u904e\u5270\u640d\u5931<\/h3>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-74636c9c\">\u6025\u30ab\u30fc\u30d6\u3067\u306f\u3001\u8a98\u5c0e\u5149\u5834\u304c\u30b3\u30a2\u5185\u306b\u3069\u308c\u3060\u3051\u3046\u307e\u304f\u9589\u3058\u8fbc\u3081\u3089\u308c\u7d9a\u3051\u308b\u304b\u304c\u5909\u5316\u3057\u307e\u3059\u3002\u4e00\u90e8\u306e\u5149\u306f\u8a98\u5c0e\u30e2\u30fc\u30c9\u304b\u3089\u653e\u5c04\u3055\u308c\u3066\u3057\u307e\u3044\u307e\u3059\u3002\u3053\u306e\u8ffd\u52a0\u3055\u308c\u308b\u30de\u30af\u30ed\u30d9\u30f3\u30c7\u30a3\u30f3\u30b0\u640d\u5931\u306f\u3001\u6ce2\u9577\u304c\u9577\u304f\u306a\u308b\u306b\u3064\u308c\u3066\u5897\u5927\u3057\u3001\u7d4c\u8def\u306e\u3046\u3061\u308f\u305a\u304b\u6570\u30bb\u30f3\u30c1\u30e1\u30fc\u30c8\u30eb\u306e\u533a\u9593\u306b\u96c6\u4e2d\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-1cfb2443\">\u3057\u305f\u304c\u3063\u3066\u3001\u5c40\u6240\u7684\u306a\u66f2\u304c\u308a1\u304b\u6240\u3060\u3051\u3067\u30011550nm\u6ce2\u9577\u306b\u304a\u3044\u3066\u3001\u30d5\u30a1\u30a4\u30d0\u30fc\u306e1km\u3042\u305f\u308a\u306e\u6e1b\u8870\u7387\u304c\u4f4e\u3044\u3053\u3068\u306b\u3088\u3063\u3066\u5f97\u3089\u308c\u308b\u5229\u70b9\u3088\u308a\u3082\u591a\u304f\u306e\u640d\u5931\u304c\u751f\u3058\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u7d50\u679c\u30011550nm\u6ce2\u9577\u3067\u306f\u3001\u901a\u5e38\u3067\u3042\u308c\u3070\u305d\u306e\u6ce2\u9577\u306b\u304a\u3044\u3066\u3088\u308a\u512a\u308c\u305f\u7279\u6027\u3092\u6301\u3064\u672a\u52a0\u5de5\u306e\u30d5\u30a1\u30a4\u30d0\u30fc\u3067\u3042\u3063\u3066\u3082\u3001\u30a8\u30f3\u30c9\u30c4\u30fc\u30a8\u30f3\u30c9\u3067\u306e\u6700\u7d42\u7684\u306a\u6027\u80fd\u306f\u4f4e\u4e0b\u3057\u3066\u3057\u307e\u3046\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-f6473ca4\">\u7dcf\u640d\u5931\u306e\u6570\u5024\u3060\u3051\u3092\u6bd4\u8f03\u3057\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u3002\u6f38\u9032\u7684\u306a\u5909\u5316\u306e\u50be\u5411\u3068\u500b\u5225\u306e\u4e8b\u8c61\u3092\u533a\u5225\u3057\u3001\u66f2\u7dda\u304c\u3069\u3053\u3067\u5206\u5c90\u3057\u59cb\u3081\u308b\u304b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-wd-title title wd-5f40257a\">\u306a\u305c1550nm\u306f\u66f2\u3052\u306b\u5bfe\u3057\u3066\u3088\u308a\u654f\u611f\u306a\u306e\u304b<\/h2>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-52f37dba\">\u6ce2\u9577\u304c\u9577\u304f\u306a\u308b\u3068\u3001\u5c0e\u6ce2\u5149\u5834\u306f\u30b3\u30a2\u304b\u3089\u3088\u308a\u9060\u304f\u307e\u3067\u5e83\u304c\u308a\u3001\u4e00\u822c\u306b\u9589\u3058\u8fbc\u3081\u304c\u7de9\u304f\u306a\u308a\u307e\u3059\u3002\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u66f2\u304c\u308a\u5177\u5408\u304c\u6025\u3059\u304e\u308b\u3068\u3001\u305d\u306e\u5149\u5834\u306e\u3088\u308a\u591a\u304f\u306e\u90e8\u5206\u304c\u6f0f\u308c\u51fa\u3066\u3057\u307e\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-81601176\">\u5177\u4f53\u7684\u306a\u640d\u5931\u984d\u306f\u3001\u4ee5\u4e0b\u306e\u8981\u56e0\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u8a2d\u8a08\u3068\u30e2\u30fc\u30c9\u30d5\u30a3\u30fc\u30eb\u30c9\u5f84<\/li>\n\n\n\n<li>\u66f2\u3052\u534a\u5f84<\/li>\n\n\n\n<li>\u5dfb\u6570<\/li>\n\n\n\n<li>\u5fdc\u529b\u4e0b\u306b\u304a\u3051\u308b\u7e4a\u7dad\u306e\u9577\u3055<\/li>\n\n\n\n<li>\u30b1\u30fc\u30d6\u30eb\u306e\u69cb\u9020<\/li>\n\n\n\n<li>\u6ce2\u9577<\/li>\n\n\n\n<li>\u6e29\u5ea6\u304a\u3088\u3073\u6a5f\u68b0\u7684\u6761\u4ef6<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-8ca688c3\"><a href=\"https:\/\/www.itu.int\/rec\/dologin_pub.asp?id=T-REC-G.657-202408-I%21%21PDF-E&amp;lang=e&amp;type=items\" target=\"_blank\" rel=\"noopener\">ITU-T G.657<\/a> \u30de\u30af\u30ed\u30d9\u30f3\u30c7\u30a3\u30f3\u30b0\u640d\u5931\u306f\u6ce2\u9577\u3001\u534a\u5f84\u3001\u304a\u3088\u3073\u5dfb\u6570\u306b\u3088\u3063\u3066\u5909\u5316\u3057\u3001\u5149\u30d9\u30f3\u30c7\u30a3\u30f3\u30b0\u640d\u5931\u306f\u6ce2\u9577\u3068\u3068\u3082\u306b\u5897\u52a0\u3059\u308b\u3068\u8ff0\u3079\u3089\u308c\u3066\u3044\u308b\u3002\u307e\u305f\u3001\u5b8c\u6210\u3057\u305f\u30b1\u30fc\u30d6\u30eb\u306e\u69cb\u9020\u3084\u6577\u8a2d\u65b9\u6cd5\u304c\u73fe\u5834\u3067\u306e\u6027\u80fd\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u3053\u3068\u306b\u3082\u6ce8\u610f\u304c\u559a\u8d77\u3055\u308c\u3066\u3044\u308b\u3002.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-c94c6de8\">\u305d\u306e\u305f\u3081\u30011310nm\u3067\u306f\u691c\u51fa\u304c\u56f0\u96e3\u3042\u308b\u3044\u306f\u78ba\u8a8d\u3067\u304d\u306a\u3044\u3088\u3046\u306a\u8a2d\u7f6e\u6642\u306e\u5fdc\u529b\u3092\u691c\u51fa\u3059\u308b\u306b\u306f\u30011550nm\u304c\u6709\u7528\u3067\u3059\u30021625nm\u306e\u4fdd\u5b88\u7528\u6ce2\u9577\u306f\u3055\u3089\u306b\u611f\u5ea6\u304c\u9ad8\u3044\u3067\u3059\u304c\u3001\u4f7f\u7528\u3059\u308b\u306b\u306f\u6e2c\u5b9a\u5668\u304c\u5bfe\u5fdc\u3057\u3066\u3044\u308b\u3053\u3068\u3001\u304a\u3088\u3073\u5b9f\u969b\u306e\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u627f\u8a8d\u3055\u308c\u3066\u3044\u308b\u3053\u3068\u304c\u5fc5\u8981\u3067\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-3df5058b\">\u611f\u5ea6\u304c\u5411\u4e0a\u3057\u305f\u304b\u3089\u3068\u3044\u3063\u3066\u30011550nm\u306e\u30a4\u30d9\u30f3\u30c8\u304c\u3059\u3079\u3066\u66f2\u3052\u7b87\u6240\u3067\u3042\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u3053\u308c\u306f\u3001\u6ce2\u9577\u306e\u5dee\u304c\u8a3a\u65ad\u4e0a\u306e\u624b\u304c\u304b\u308a\u3067\u3042\u308a\u3001\u305d\u306e\u5024\u306f\u30a4\u30d9\u30f3\u30c8\u306e\u5f62\u72b6\u3084\u7d4c\u8def\u3068\u4e00\u81f4\u3059\u3079\u304d\u3067\u3042\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-wd-title title wd-5925e932\">1310nm\u304a\u3088\u30731550nm\u306eOTDR\u30c8\u30ec\u30fc\u30b9\u306b\u304a\u3051\u308b\u30d9\u30f3\u30c9\u306e\u5f62\u72b6<\/h2>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-a5a0eb40\">\u5358\u7d14\u306a\u30de\u30af\u30ed\u30d9\u30f3\u30c9\u306f\u3001\u591a\u304f\u306e\u5834\u5408\u3001\u4e21\u65b9\u306e\u30c8\u30ec\u30fc\u30b9\u4e0a\u3067\u540c\u3058\u4f4d\u7f6e\u306b\u3001\u53cd\u5c04\u306e\u306a\u3044\u6bb5\u5dee\u3068\u3057\u3066\u73fe\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>1310nm\u306e\u6bb5\u5dee\u306f\u5c0f\u3055\u304f\u3001\u898b\u5206\u3051\u306b\u304f\u3044\u3002.<\/li>\n\n\n\n<li>1550nm\u306e\u30b9\u30c6\u30c3\u30d7\u306f\u3088\u308a\u5927\u304d\u3044\u3002.<\/li>\n\n\n\n<li>\u53cd\u5c04\u7528\u306e\u7a81\u8d77\u304c\u306a\u3044\u5834\u5408\u3082\u3042\u308a\u307e\u3059\u3002.<\/li>\n\n\n\n<li>\u66f2\u304c\u308a\u89d2\u3067\u51fa\u529b\u304c\u4f4e\u4e0b\u3057\u305f\u305f\u3081\u3001\u4e8b\u5f8c\u306e\u5f8c\u65b9\u6563\u4e71\u306f\u4f4e\u3044\u307e\u307e\u3068\u306a\u3063\u3066\u3044\u308b\u3002.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-932c29b4\">\u306b\u3064\u3044\u3066 <a href=\"https:\/\/www.thefoa.org\/tech\/ref\/testing\/OTDR\/OTDR-FAQS.html\" target=\"_blank\" rel=\"noopener\">\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u5354\u4f1a\u306eOTDR\u306b\u95a2\u3059\u308b\u3088\u304f\u3042\u308b\u8cea\u554f<\/a> \u3053\u306e\u53e4\u5178\u7684\u306a\u6bd4\u8f03\u304c\u305d\u308c\u3092\u793a\u3057\u3066\u3044\u307e\u3059\u3002\u610f\u56f3\u7684\u306b\u30b9\u30c8\u30ec\u30b9\u3092\u304b\u3051\u305f\u30b7\u30f3\u30b0\u30eb\u30e2\u30fc\u30c9\u30b1\u30fc\u30d6\u30eb\u3067\u306f\u30011550nm\u3067\u660e\u3089\u304b\u306a\u975e\u53cd\u5c04\u640d\u5931\u304c\u898b\u3089\u308c\u305f\u306e\u306b\u5bfe\u3057\u30011310nm\u3067\u306f\u305d\u306e\u5146\u5019\u304c\u306f\u308b\u304b\u306b\u5c11\u306a\u304b\u3063\u305f\u306e\u3067\u3059\u3002\u3053\u306e\u4f8b\u306f\u53c2\u8003\u3068\u306a\u308b\u3082\u306e\u3067\u3042\u308a\u3001\u666e\u904d\u7684\u306a\u640d\u5931\u95be\u5024\u3092\u793a\u3059\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-2c257984\">\u540c\u3058\u30de\u30c3\u30d4\u30f3\u30b0\u8ddd\u96e2\u306b\u3042\u308b\u30a4\u30d9\u30f3\u30c8\u304c\u6b21\u306e\u3088\u3046\u306b\u5831\u544a\u3059\u308b\u3068\u4eee\u5b9a\u3057\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>1310nm\u306b\u304a\u3051\u308b\u30a4\u30d9\u30f3\u30c8\u640d\u5931\uff1a0.08dB<\/li>\n\n\n\n<li>1550nm\u306b\u304a\u3051\u308b\u30a4\u30d9\u30f3\u30c8\u640d\u5931\uff1a0.72dB<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-dfa673b6\">\u6ce2\u9577\u306e\u5dee\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\uff1a<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-39016827\"><code>\u5dee\u52d5\u30a4\u30d9\u30f3\u30c8\u30ed\u30b9 = 0.72dB \u2212 0.08dB = 0.64dB<\/code><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-d62ab498\">\u305d\u306e\u30d1\u30bf\u30fc\u30f3\u306f\u66f2\u304c\u308a\u306b\u3088\u308b\u3082\u306e\u3068\u4e00\u81f4\u3057\u3066\u3044\u307e\u3059\u3002\u6570\u5024\u306f\u3042\u304f\u307e\u3067\u4e00\u4f8b\u3067\u3059\u3002\u8a3a\u65ad\u3092\u78ba\u5b9a\u3059\u308b\u524d\u306b\u3001\u4f7f\u7528\u3057\u305f\u30c8\u30ec\u30fc\u30b9\u306e\u8a2d\u5b9a\u304c\u540c\u7b49\u3067\u3042\u308b\u3053\u3068\u3001\u305d\u306e\u4e8b\u8c61\u304c\u30c7\u30c3\u30c9\u30be\u30fc\u30f3\u5185\u306b\u306a\u3044\u3053\u3068\u3001\u304a\u3088\u3073\u7269\u7406\u7684\u306a\u7d4c\u8def\u306b\u59a5\u5f53\u306a\u5fdc\u529b\u70b9\u304c\u5b58\u5728\u3059\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-c7e82b78\"><a href=\"https:\/\/www.itu.int\/rec\/dologin_pub.asp?id=T-REC-G.650.3-201102-S%21Amd1%21PDF-E&amp;lang=e&amp;type=items\" target=\"_blank\" rel=\"noopener\">ITU-T G.650.3 \u7b2c1\u6539\u6b63<\/a> \u8a2d\u7f6e\u6e08\u307f\u306e\u30b7\u30f3\u30b0\u30eb\u30e2\u30fc\u30c9\u56de\u7dda\u5411\u3051\u306e2\u6ce2\u9577\u30de\u30af\u30ed\u30d9\u30f3\u30c9\u691c\u77e5\u6307\u6a19\u3092\u5b9a\u5f0f\u5316\u3059\u308b\u3002\u307e\u305f\u30011310nm\u3092\u77ed\u3044\u6ce2\u9577\u3068\u3057\u305f\u5834\u5408\u30012\u756a\u76ee\u306e\u6ce2\u9577\u304c\u9577\u304f\u306a\u308b\u307b\u3069\u3001\u30de\u30af\u30ed\u30d9\u30f3\u30c9\u306e\u691c\u77e5\u611f\u5ea6\u304c\u5411\u4e0a\u3059\u308b\u3053\u3068\u3092\u8aac\u660e\u3057\u3066\u3044\u308b\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-wd-title title wd-4441b517\">\u66f2\u3052\u3001\u30b9\u30d7\u30e9\u30a4\u30b9\u3001\u305d\u308c\u3068\u3082\u30b3\u30cd\u30af\u30bf\uff1f<\/h2>\n\n\n\n<h3 class=\"wp-block-wd-title title wd-e9a08c8e\">\u30d9\u30f3\u30c9\u90e8\u306f\u901a\u5e38\u3001\u975e\u53cd\u5c04\u6027\u3067\u3042\u308a\u3001\u6ce2\u9577\u306b\u4f9d\u5b58\u3059\u308b\u3002<\/h3>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-2a7c8e07\">\u30eb\u30fc\u30d7\u304c\u304d\u3064\u304b\u3063\u305f\u308a\u3001\u631f\u307f\u8fbc\u307f\u304c\u767a\u751f\u3057\u305f\u308a\u3059\u308b\u3068\u3001\u4e00\u822c\u7684\u306b\u53cd\u5c04\u30d4\u30fc\u30af\u306e\u306a\u3044\u30b9\u30c6\u30c3\u30d7\u304c\u751f\u3058\u30011550nm\u3067\u306e\u640d\u5931\u304c\u5927\u304d\u304f\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u539f\u56e0\u3068\u306a\u308a\u3084\u3059\u3044\u7b87\u6240\u3068\u3057\u3066\u306f\u3001\u6b21\u306e\u3088\u3046\u306a\u3082\u306e\u304c\u6319\u3052\u3089\u308c\u307e\u3059\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u30ea\u30c6\u30fc\u30ca\u30fc\u306e\u5916\u5074\u306b\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u304c\u914d\u7dda\u3055\u308c\u305f\u30b9\u30d7\u30e9\u30a4\u30b9\u30c8\u30ec\u30a4<\/li>\n\n\n\n<li>\u30d0\u30c3\u30d5\u30a1\u30fc\u30c1\u30e5\u30fc\u30d6\u3092\u62bc\u3057\u4ed8\u3051\u3066\u3044\u308b\u9589\u9396\u7528\u84cb<\/li>\n\n\n\n<li>\u7de0\u3081\u4ed8\u3051\u3059\u304e\u305f\u30b1\u30fc\u30d6\u30eb\u30bf\u30a4<\/li>\n\n\n\n<li>\u30b3\u30f3\u30bb\u30f3\u30c8\u306e\u5f8c\u308d\u306b\u6298\u308a\u305f\u305f\u307e\u308c\u305f\u30c9\u30ed\u30c3\u30d7\u30b1\u30fc\u30d6\u30eb<\/li>\n\n\n\n<li>\u6a5f\u5668\u306e\u4e0b\u306b\u631f\u307e\u3063\u305f\u30d1\u30c3\u30c1\u30b3\u30fc\u30c9<\/li>\n\n\n\n<li>\u92ed\u5229\u306a\u58c1\u3001\u30ad\u30e3\u30d3\u30cd\u30c3\u30c8\u3001\u307e\u305f\u306f\u30c9\u30a2\u67a0\u306e\u89d2<\/li>\n\n\n\n<li>\u30b1\u30fc\u30d6\u30eb\u306e\u8a31\u5bb9\u66f2\u3052\u534a\u5f84\u3092\u4e0b\u56de\u308b\u30ea\u30fc\u30eb\u307e\u305f\u306f\u53ce\u7d0d\u30eb\u30fc\u30d7<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-7ffcaa77\">OTDR\u306e\u8ddd\u96e2\u5024\u306f\u691c\u67fb\u3059\u3079\u304d\u7b87\u6240\u3092\u793a\u3057\u307e\u3059\u304c\u3001\u305d\u306e\u8ddd\u96e2\u306e\u7cbe\u5ea6\u306f\u3001\u8a2d\u5b9a\u3055\u308c\u305f\u7fa4\u5c48\u6298\u7387\u304a\u3088\u3073\u5149\u7d4c\u8def\u306e\u9577\u3055\u3068\u5730\u56f3\u4e0a\u306e\u8ddd\u96e2\u3068\u306e\u5dee\u306b\u3088\u3063\u3066\u5de6\u53f3\u3055\u308c\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-wd-title title wd-5ce3511e\">\u878d\u7740\u63a5\u7d9a\u306f\u3001\u30d9\u30f3\u30c9\u3068\u6df7\u540c\u3055\u308c\u308b\u3053\u3068\u304c\u3042\u308b<\/h3>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-fcbf24bc\">\u307e\u305f\u3001\u878d\u7740\u63a5\u7d9a\u90e8\u3082\u901a\u5e38\u306f\u53cd\u5c04\u3057\u307e\u305b\u3093\u3002\u540c\u3058\u4f4d\u7f6e\u306b\u63a5\u7d9a\u90e8\u304c\u3042\u308b\u5834\u5408\u3001\u305d\u306e\u73fe\u8c61\u306f\u63a5\u7d9a\u4e0d\u826f\u3001\u3042\u308b\u3044\u306f\u30d7\u30ed\u30c6\u30af\u30bf\u30fc\u30b9\u30ea\u30fc\u30d6\u306e\u3059\u3050\u305d\u3070\u3067\u306e\u66f2\u304c\u308a\u3001\u3042\u308b\u3044\u306f\u305d\u306e\u4e21\u65b9\u306e\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-d7bd9b56\">\u5f8c\u65b9\u6563\u4e71\u4fc2\u6570\u304c\u7570\u306a\u308b\u30d5\u30a1\u30a4\u30d0\u30fc\u9593\u306e\u30b9\u30d7\u30e9\u30a4\u30b9\u306f\u3001\u4e00\u65b9\u5411\u3067\u306f\u30b2\u30a4\u30f3\u304c\u5897\u52a0\u3057\u3001\u3082\u3046\u4e00\u65b9\u5411\u3067\u306f\u640d\u5931\u304c\u5897\u52a0\u3059\u308b\u73fe\u8c61\u3092\u793a\u3059\u3053\u3068\u304c\u3042\u308b\u3002\u3053\u306e\u65b9\u5411\u6027\u306b\u3088\u308b\u5f71\u97ff\u306f\u3001\u6ce2\u9577\u4f9d\u5b58\u6027\u306e\u66f2\u3052\u3068\u306f\u7570\u306a\u308b\u3002.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-b6785c9a\">\u30b9\u30d7\u30e9\u30a4\u30b9\u306e\u5408\u683c\u5224\u5b9a\u304c\u91cd\u8981\u306a\u5834\u5408\u306f\u3001\u4e21\u7aef\u304b\u3089\u30c6\u30b9\u30c8\u3092\u884c\u3063\u3066\u304f\u3060\u3055\u3044\u3002\u7b26\u53f7\u306b\u6ce8\u610f\u3057\u3066\u3001\u6b21\u306e\u8a08\u7b97\u3092\u884c\u3063\u3066\u304f\u3060\u3055\u3044\uff1a<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-3c528620\"><code>\u53cc\u65b9\u5411\u30b9\u30d7\u30e9\u30a4\u30b9\u640d\u5931 \uff1d \uff08A\u2192B\u306e\u7b26\u53f7\u4ed8\u304d\u640d\u5931 \uff0b B\u2192A\u306e\u7b26\u53f7\u4ed8\u304d\u640d\u5931\uff09 \u00f7 2<\/code><\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-abbc2371\">LuLeey\u306e\u30ac\u30a4\u30c9\uff1a <a href=\"https:\/\/www.luleey.com\/ja\/otdr-gainer-why-does-a-splice-show-negative-loss\/\">OTDR\u306e\u30b2\u30a4\u30f3\u5897\u52a0\u3068\u8ca0\u306e\u30b9\u30d7\u30e9\u30a4\u30b9\u640d\u5931<\/a> \u540c\u3058\u7269\u7406\u73fe\u8c61\u3092\u30da\u30a2\u306b\u3057\u3066\u3001\u6b63\u3057\u304f\u5e73\u5747\u5316\u3059\u308b\u65b9\u6cd5\u3092\u8aac\u660e\u3057\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-wd-title title wd-0650939d\">\u30b3\u30cd\u30af\u30bf\u306f\u901a\u5e38\u3001\u53cd\u5c04\u306e\u8a3c\u62e0\u3092\u8ffd\u52a0\u3057\u307e\u3059<\/h3>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-f51adede\">\u30b3\u30cd\u30af\u30bf\u306e\u958b\u53e3\u90e8\u3001\u30a8\u30a2\u30ae\u30e3\u30c3\u30d7\u3001\u6a5f\u68b0\u7684\u63a5\u5408\u90e8\u3001\u307e\u305f\u306f\u8457\u3057\u304f\u6c5a\u67d3\u3055\u308c\u305f\u7aef\u9762\u306f\u3001\u3057\u3070\u3057\u3070\u53cd\u5c04\u30d4\u30fc\u30af\u3092\u5f15\u304d\u8d77\u3053\u3057\u307e\u3059\u3002\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6240\u6709\u8005\u304c\u627f\u8a8d\u3057\u305f\u624b\u9806\u306b\u5f93\u3063\u3066\u3001\u70b9\u691c\u304a\u3088\u3073\u6e05\u6383\u304c\u53ef\u80fd\u306a\u30b3\u30cd\u30af\u30bf\u3092\u70b9\u691c\u30fb\u6e05\u6383\u3057\u305f\u5f8c\u3001\u518d\u8a66\u9a13\u3092\u884c\u3063\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-d0ea57e7\">\u3059\u3079\u3066\u306e\u53cd\u5c04\u30a4\u30d9\u30f3\u30c8\u304c\u6c5a\u308c\u3067\u3042\u308b\u3068\u306f\u9650\u3089\u305a\u3001\u307e\u305f\u3001\u3059\u3079\u3066\u306e\u975e\u53cd\u5c04\u30a4\u30d9\u30f3\u30c8\u304c\u5c48\u6298\u3067\u3042\u308b\u3068\u306f\u9650\u3089\u306a\u3044\u3053\u3068\u306b\u7559\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002APC\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u3001\u4f4e\u53cd\u5c04\u7387\u30b3\u30cd\u30af\u30bf\u3001\u81ea\u52d5\u30a4\u30d9\u30f3\u30c8\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u3001\u304a\u3088\u3073\u8fd1\u508d\u306e\u30c7\u30c3\u30c9\u30be\u30fc\u30f3\u306b\u3088\u3063\u3066\u3001\u30c8\u30ec\u30fc\u30b9\u306e\u5f62\u72b6\u304c\u5909\u308f\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-wd-title title wd-ef86a794\">1310nm\u30681550nm\u306e\u6bd4\u8f03\u3092\u516c\u5e73\u306b\u884c\u3046<\/h2>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-b8cd19db\">\u3053\u306e\u6bd4\u8f03\u304c\u6709\u7528\u306a\u306e\u306f\u30012\u3064\u306e\u6e2c\u5b9a\u5024\u304c\u3001\u5236\u5fa1\u3055\u308c\u305f\u6761\u4ef6\u4e0b\u3067\u540c\u3058\u7269\u7406\u7684\u30ea\u30f3\u30af\u3092\u8868\u3057\u3066\u3044\u308b\u5834\u5408\u306b\u9650\u3089\u308c\u308b\u3002.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-c8f21e58\">\u4ee5\u4e0b\u3068\u540c\u3058\u3082\u306e\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8a66\u9a13\u306e\u65b9\u5411\u6027<\/li>\n\n\n\n<li>\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u9001\u53d7\u4fe1<\/li>\n\n\n\n<li>\u30b3\u30cd\u30af\u30bf\u306e\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u304a\u3088\u3073\u6d17\u6d44\u6761\u4ef6<\/li>\n\n\n\n<li>\u8ddd\u96e2\u7bc4\u56f2<\/li>\n\n\n\n<li>\u6ce2\u9577\u304a\u3088\u3073\u30d5\u30a1\u30a4\u30d0\u30fc\u306b\u9069\u3057\u305f\u30b0\u30eb\u30fc\u30d7\u5c48\u6298\u7387\u306e\u8a2d\u5b9a<\/li>\n\n\n\n<li>\u4e8b\u8c61\u5206\u6790\u6cd5<\/li>\n\n\n\n<li>\u30eb\u30fc\u30c8\u306e\u72b6\u614b\u3068\u74b0\u5883\u6761\u4ef6<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-87ca25f9\">\u53ef\u80fd\u306a\u9650\u308a\u3001\u540c\u7b49\u306e\u30d1\u30eb\u30b9\u5e45\u3068\u5e73\u5747\u5316\u54c1\u8cea\u3092\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u8a08\u6e2c\u5668\u304c\u6ce2\u9577\u3054\u3068\u306e\u6700\u9069\u5316\u3092\u884c\u3063\u3066\u3044\u308b\u5834\u5408\u3001\u8a2d\u5b9a\u5024\u304c\u6570\u5024\u7684\u306b\u5fc5\u305a\u3057\u3082\u540c\u4e00\u3067\u3042\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u304c\u3001\u30a4\u30d9\u30f3\u30c8\u5468\u8fba\u306b\u304a\u3044\u3066\u540c\u7b49\u306e\u7a7a\u9593\u5206\u89e3\u80fd\u3068\u30ce\u30a4\u30ba\u6027\u80fd\u304c\u5f97\u3089\u308c\u308b\u3088\u3046\u306b\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph 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title=\"\" srcset=\"https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/09\/fiber-loss-1550nm-1310nm-workflow.png 1000w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/09\/fiber-loss-1550nm-1310nm-workflow-800x800.png 800w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/09\/fiber-loss-1550nm-1310nm-workflow-400x400.png 400w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/09\/fiber-loss-1550nm-1310nm-workflow-768x768.png 768w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/09\/fiber-loss-1550nm-1310nm-workflow-12x12.png 12w, https:\/\/www.luleey.com\/wp-content\/uploads\/2026\/09\/fiber-loss-1550nm-1310nm-workflow-150x150.png 150w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/div>\n\n\n\n<h2 class=\"wp-block-wd-title title wd-c9bd8c37\">8\u3064\u306e\u30b9\u30c6\u30c3\u30d7\u304b\u3089\u306a\u308b\u30c8\u30e9\u30d6\u30eb\u30b7\u30e5\u30fc\u30c6\u30a3\u30f3\u30b0\u306e\u30ef\u30fc\u30af\u30d5\u30ed\u30fc<\/h2>\n\n\n\n<h3 class=\"wp-block-wd-title title wd-d0b91f17\">\u624b\u9806 1\uff1a\u30d5\u30a1\u30a4\u30d0\u30fc\u306b\u4fe1\u53f7\u304c\u901a\u3063\u3066\u3044\u308b\u304b\u78ba\u8a8d\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-429867df\">\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u6240\u6709\u8005\u306b\u78ba\u8a8d\u3057\u3001\u6ce2\u9577\u30d7\u30e9\u30f3\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u30b3\u30cd\u30af\u30bf\u304c\u629c\u304b\u308c\u3066\u3044\u308b\u3088\u3046\u306b\u898b\u3048\u308b\u3053\u3068\u3084\u3001ONU\u306eLED\u306e\u72b6\u614b\u304b\u3089\u3001\u30c0\u30fc\u30af\u30d5\u30a1\u30a4\u30d0\u30fc\u3067\u3042\u308b\u3068\u63a8\u6e2c\u3057\u3066\u306f\u3044\u3051\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<h3 class=\"wp-block-wd-title title wd-f6fcde9c\">\u30b9\u30c6\u30c3\u30d7 2\uff1a\u4f5c\u696d\u30b3\u30f3\u30c6\u30ad\u30b9\u30c8\u3092\u8a18\u9332\u3059\u308b<\/h3>\n\n\n\n<p class=\"wp-block-wd-paragraph 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wd-d07ba7e7\">\u8ddd\u96e2\u306b\u57fa\u3065\u3044\u3066\u30c8\u30ec\u30fc\u30b9\u3092\u63c3\u3048\u307e\u3059\u30021550nm\u306e\u4fe1\u53f7\u30ec\u30d9\u30eb\u304c1310nm\u3088\u308a\u3082\u5927\u304d\u304f\u4f4e\u4e0b\u3059\u308b\u6700\u521d\u306e\u30dd\u30a4\u30f3\u30c8\u3092\u63a2\u3057\u307e\u3059\u3002\u305d\u306e\u8ddd\u96e2\u3092\u57fa\u6e96\u306b\u3057\u3066\u3001\u30b9\u30d7\u30e9\u30a4\u30b9\u30c8\u30ec\u30a4\u3001\u30af\u30ed\u30fc\u30b8\u30e3\u30fc\u3001\u30b9\u30e9\u30c3\u30af\u30eb\u30fc\u30d7\u3001\u30b3\u30fc\u30ca\u30fc\u3001\u30b1\u30fc\u30d6\u30eb\u30bf\u30a4\u3001\u30d1\u30c3\u30c1\u30d1\u30cd\u30eb\u3001\u304a\u3088\u3073\u9867\u5ba2\u7528\u30a2\u30a6\u30c8\u30ec\u30c3\u30c8\u306e\u4f4d\u7f6e\u3092\u5408\u308f\u305b\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph 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wd-6b173d81\">\u5b8c\u6210\u3057\u305f\u30b1\u30fc\u30d6\u30eb\u306e\u8a2d\u7f6e\u624b\u9806\u306b\u5f93\u3063\u3066\u3001\u30b1\u30fc\u30d6\u30eb\u306e\u5f35\u529b\u3092\u7de9\u548c\u3059\u308b\u304b\u3001\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u306e\u7d4c\u8def\u3092\u5909\u66f4\u3057\u3066\u304f\u3060\u3055\u3044\u3002\u540c\u3058\u65b9\u6cd5\u3067\u3001\u4e21\u65b9\u306e\u6ce2\u9577\u306e\u30c6\u30b9\u30c8\u3092\u518d\u5ea6\u884c\u3063\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-3c956bd9\">\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u30a8\u30f3\u30c9\u30c4\u30fc\u30a8\u30f3\u30c9\u306e\u8a8d\u8a3c\u304c\u5fc5\u8981\u306a\u5834\u5408\u306f\u3001\u627f\u8a8d\u6e08\u307f\u306e\u5149\u6e90\u304a\u3088\u3073\u30d1\u30ef\u30fc\u30e1\u30fc\u30bf\u30fc\u3001\u3042\u308b\u3044\u306fOLTS\u6cd5\u3082\u4f7f\u7528\u3057\u3066\u304f\u3060\u3055\u3044\u3002OTDR\u306f\u3001\u53cd\u5c04\u5149\u304b\u3089\u30a4\u30d9\u30f3\u30c8\u306e\u4f4d\u7f6e\u3092\u7279\u5b9a\u3057\u3001\u305d\u306e\u7279\u6027\u3092\u8a55\u4fa1\u3059\u308b\u3082\u306e\u3067\u3042\u308a\u3001\u3059\u3079\u3066\u306e\u633f\u5165\u640d\u5931\u306e\u5408\u683c\u5224\u5b9a\u65b9\u6cd5\u306e\u76f4\u63a5\u7684\u306a\u4ee3\u66ff\u3068\u306a\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-wd-title title wd-e31bd459\">\u7a3c\u50cd\u4e2d\u306ePON\u3067\u3053\u306e\u30c6\u30b9\u30c8\u3092\u5b9f\u884c\u3067\u304d\u307e\u3059\u304b\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-332dafc0\">\u305d\u306e\u5b9f\u7a3c\u50cd\u30b7\u30b9\u30c6\u30e0\u306b\u5bfe\u3057\u3066\u627f\u8a8d\u3055\u308c\u305f\u6a5f\u5668\u304a\u3088\u3073\u624b\u9806\u306e\u307f\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u3002.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-ea9753be\">\u901a\u5e38\u306e1310nm\u307e\u305f\u306f1550nm\u306eOTDR\u306f\u3001\u30b5\u30fc\u30d3\u30b9\u7528\u307e\u305f\u306f\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\u7528\u306e\u6ce2\u9577\u3068\u91cd\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u3001\u30c8\u30e9\u30d5\u30a3\u30c3\u30af\u306b\u5e72\u6e09\u3057\u305f\u308a\u3001\u30a2\u30af\u30c6\u30a3\u30d6\u6a5f\u5668\u304b\u3089\u306e\u5149\u3092\u53d7\u4fe1\u3057\u305f\u308a\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002 \u4f8b\u3048\u3070\u30011550nm\u306fRF\u30d3\u30c7\u30aa\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\u3084\u4ed6\u306e\u5149\u30b5\u30fc\u30d3\u30b9\u306b\u4f7f\u7528\u3055\u308c\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002XG-PON\u3001XGS-PON\u3001\u304a\u3088\u3073\u5171\u5b58\u30b7\u30b9\u30c6\u30e0\u3067\u306f\u3001\u3055\u3089\u306b\u8003\u616e\u3059\u3079\u304d\u6ce2\u9577\u304c\u8ffd\u52a0\u3055\u308c\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-eed69f63\">\u7a3c\u50cd\u4e2d\u306e\u30c6\u30b9\u30c8\u3067\u306f\u3001\u4ee5\u4e0b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u904b\u7528\u7528\u6ce2\u9577\u8a08\u753b\u306e\u5168\u5bb9<\/li>\n\n\n\n<li>OTDR\u306e\u6e2c\u5b9a\u6ce2\u9577\u3068\u51fa\u529b\u96fb\u529b<\/li>\n\n\n\n<li>\u5185\u8535\u30d5\u30a3\u30eb\u30bf\u30fc\u306e\u901a\u904e\u5e2f\u57df\u3068\u30a2\u30a4\u30bd\u30ec\u30fc\u30b7\u30e7\u30f3<\/li>\n\n\n\n<li>\u6700\u5927\u5165\u529b\u96fb\u529b\u8a31\u5bb9\u5024<\/li>\n\n\n\n<li>\u627f\u8a8d\u6e08\u307f\u63a5\u7d9a\u30dd\u30a4\u30f3\u30c8<\/li>\n\n\n\n<li>OLT\u3001ONU\u3001\u5171\u5b58\u8981\u7d20\u304a\u3088\u3073\u30aa\u30fc\u30d0\u30fc\u30ec\u30a4\u306e\u8981\u4ef6<\/li>\n\n\n\n<li>\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u6240\u6709\u8005\u306e\u627f\u8a8d\u304a\u3088\u3073\u4fdd\u5b88\u624b\u9806<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-490e48fd\">1625nm\u304c\u5c48\u6298\u306e\u5f71\u97ff\u3092\u53d7\u3051\u3084\u3059\u3044\u3068\u3044\u3046\u4e8b\u5b9f\u304c\u3042\u3063\u3066\u3082\u3001\u30d5\u30a3\u30eb\u30bf\u30ea\u30f3\u30b0\u3055\u308c\u3066\u3044\u306a\u30441625nm OTDR\u304c\u3001\u3059\u3079\u3066\u306e\u7a3c\u50cd\u4e2d\u306ePON\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u3067\u5b89\u5168\u306b\u5229\u7528\u3067\u304d\u308b\u3068\u306f\u9650\u308a\u307e\u305b\u3093\u3002\u307e\u305a\u3001\u4f7f\u7528\u3059\u308b\u6e2c\u5b9a\u5668\u306e\u5177\u4f53\u7684\u306a\u6a5f\u7a2e\u3068\u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u306e\u30a2\u30fc\u30ad\u30c6\u30af\u30c1\u30e3\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u3002.<\/p>\n\n\n\n<h2 class=\"wp-block-wd-title title wd-954080e1\">\uff5e\u3067\u3059\u304b <a style=\"color: #FF6A00;\" target=\"_blank\" href=\"https:\/\/www.luleey.com\/ja\/tag\/g-657a2\/\" title=\"G.657A2 \u306e\u3059\u3079\u3066\u306e\u6295\u7a3f\u3092\u8868\u793a\">G.657A2<\/a> \u98df\u7269\u7e4a\u7dad\u306f\u3053\u306e\u554f\u984c\u3092\u4e88\u9632\u3067\u304d\u308b\u306e\u3067\u3057\u3087\u3046\u304b\uff1f<\/h2>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-f407e116\">G.657A2\u30d5\u30a1\u30a4\u30d0\u30fc\u306f\u3001\u5f93\u6765\u306eG.652D\u3088\u308a\u3082\u512a\u308c\u305f\u30de\u30af\u30ed\u30d9\u30f3\u30c7\u30a3\u30f3\u30b0\u6027\u80fd\u3092\u767a\u63ee\u3057\u307e\u3059\u304c\u3001\u66f2\u3052\u640d\u5931\u3084\u6a5f\u68b0\u7684\u640d\u50b7\u3092\u5b8c\u5168\u306b\u6392\u9664\u3067\u304d\u308b\u308f\u3051\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-0b1b5534\">ITU-T G.657\u3067\u306f\u3001\u30ab\u30c6\u30b4\u30ea\u30fcA\u306e\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u3092G.652.D\u306b\u6e96\u62e0\u3059\u308b\u3082\u306e\u3068\u3057\u3066\u5b9a\u7fa9\u3057\u3066\u304a\u308a\u3001G.657.A2\u306fA1\u3088\u308a\u3082\u5c0f\u3055\u3044\u8a2d\u8a08\u534a\u5f84\u306b\u9069\u3057\u3066\u3044\u308b\u3068\u898f\u5b9a\u3057\u3066\u3044\u307e\u3059\u3002\u307e\u305f\u3001\u3053\u306e\u898f\u683c\u3067\u306f\u3001\u5b9f\u74b0\u5883\u3067\u306e\u6027\u80fd\u306f\u30b1\u30fc\u30d6\u30eb\u306e\u69cb\u9020\u3084\u6577\u8a2d\u65b9\u6cd5\u306b\u4f9d\u5b58\u3059\u308b\u3053\u3068\u3082\u660e\u8a18\u3055\u308c\u3066\u3044\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-3189a516\">\u3053\u306e\u533a\u5225\u306f\u91cd\u8981\u3067\u3059\u3002\u300c\u88f8\u30d5\u30a1\u30a4\u30d0\u30fc\u300d\u3068\u3044\u3046\u5206\u985e\u3067\u3042\u3063\u3066\u3082\u3001\u5b8c\u6210\u3057\u305f\u30b1\u30fc\u30d6\u30eb\u3092\u6298\u308a\u66f2\u3052\u305f\u308a\u3001\u62bc\u3057\u3064\u3076\u3057\u305f\u308a\u3001\u30db\u30c1\u30ad\u30b9\u3067\u7559\u3081\u305f\u308a\u3001\u304d\u3064\u304f\u7e1b\u3063\u305f\u308a\u3059\u308b\u3053\u3068\u3092\u8a31\u5bb9\u3059\u308b\u3082\u306e\u3067\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u30b1\u30fc\u30d6\u30eb\u306e\u30b8\u30e3\u30b1\u30c3\u30c8\u3001\u88dc\u5f37\u6750\u3001\u30b3\u30cd\u30af\u30bf\u30d6\u30fc\u30c4\u3001\u63a5\u7740\u65b9\u6cd5\u3001\u304a\u3088\u3073\u9577\u671f\u7684\u306a\u3072\u305a\u307f\u306f\u3001\u3059\u3079\u3066\u8a2d\u7f6e\u5f8c\u306e\u4ed5\u4e0a\u304c\u308a\u72b6\u614b\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002.<\/p>\n\n\n\n<p class=\"wp-block-wd-paragraph wd-95f30b6a\">LuLeey\u2019s <a href=\"https:\/\/www.luleey.com\/ja\/product\/fttr-indoor-transparent-fiber-optic-cable\/\">G.657A2 FTTR \u900f\u660e\u5149\u30d5\u30a1\u30a4\u30d0\u30fc\u30b1\u30fc\u30d6\u30eb<\/a> \u3053\u306e\u30da\u30fc\u30b8\u306b\u306f\u3001SC\/APC\u3001SC\/UPC\u3001FC\/APC\u3001LC\/UPC\u3001\u304a\u3088\u3073\u30d8\u30c3\u30c9\u30ec\u30b9\u4ed5\u69d8\u306e\u30010.9mm\u306e\u5c4b\u5185\u7528\u900f\u660e\u30b1\u30fc\u30d6\u30eb\u304c\u63b2\u8f09\u3055\u308c\u3066\u3044\u307e\u3059\u3002 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