JP4016953B2 - 光伝送システム - Google Patents
光伝送システム Download PDFInfo
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- JP4016953B2 JP4016953B2 JP2004025775A JP2004025775A JP4016953B2 JP 4016953 B2 JP4016953 B2 JP 4016953B2 JP 2004025775 A JP2004025775 A JP 2004025775A JP 2004025775 A JP2004025775 A JP 2004025775A JP 4016953 B2 JP4016953 B2 JP 4016953B2
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- Japan
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- optical
- output
- transmission
- signal light
- optical transmission
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Description
そこで、超高速光信号伝送を実現する一つの手段として、伝送路品質に応じて伝送レートや変調方式を動的に操作することが考えられる。伝送レートを動的に制御する技術が、特許文献1〜4に記載されている。
12:電気スイッチ
14:データ識別子付加装置
20:光送信装置
22(221〜228):位相変調器
24:パルス光源
26:分波器
28,30:OTDM多重装置
32:直交偏波多重装置
40:光ファイバ伝送路
50:光受信装置
52:分波器
54:クロック再生装置
56:偏波分離装置
58,60:OTDM分離装置
70(701〜708):位相復調器
72(721〜728):受光器
80:経路切替え装置
82(821〜828):データ識別子判別装置
84:電気スイッチ
90:パフォーマンスモニタ
92:制御ネットワーク
94:ネットワーク管理サーバ
Claims (1)
- 4つの入力ポート、当該4つの入力ポートからの入力信号をそれぞれ変調する第1〜第4チャネルの光変調器(22)、第1及び第2チャネルの光変調器の出力信号光を時分割多重する第1の多重装置(28)、第3及び第4チャネルの光変調器の出力信号光を時分割多重する第2の多重装置(30)、並びに、当該第1及び第2の多重装置(28,30)の出力信号光を互いに直交する偏波で多重する偏波多重装置(32)を具備する光送信装置(20)と、
当該光送信装置(20)から出力され光伝送路(40)を伝搬した信号を受信し、複数チャネルの受信信号を出力する光受信装置(50)と、
複数の信号を任意のチャネルに切り替え可能であり、データ識別子を付加して当該4つの入力ポートに出力する第1の経路切替え装置(10)と、
当該光受信装置(50)による複数チャネルの受信信号を切り替える第2の経路切替え装置(80)と、
当該光伝送路(40)上での信号品質を監視するパフォーマンスモニタ(90)と、
当該パフォーマンスモニタ(90)の監視結果に従い、当該第1の経路切替え装置(10)及び当該第2の経路切替え装置(80)を制御する制御装置(94)
とを具備することを特徴とする光伝送システム。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004025775A JP4016953B2 (ja) | 2004-02-02 | 2004-02-02 | 光伝送システム |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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JP2004025775A JP4016953B2 (ja) | 2004-02-02 | 2004-02-02 | 光伝送システム |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005218047A JP2005218047A (ja) | 2005-08-11 |
JP4016953B2 true JP4016953B2 (ja) | 2007-12-05 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2004025775A Expired - Fee Related JP4016953B2 (ja) | 2004-02-02 | 2004-02-02 | 光伝送システム |
Country Status (1)
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JP (1) | JP4016953B2 (ja) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5644375B2 (ja) * | 2010-10-28 | 2014-12-24 | 富士通株式会社 | 光伝送装置および光伝送システム |
JP5994294B2 (ja) * | 2012-03-06 | 2016-09-21 | 富士通株式会社 | 光伝送装置および光伝送方法 |
US10020878B2 (en) * | 2015-04-17 | 2018-07-10 | Fujitsu Limited | Optical signal-to-noise ratio monitor and method for measuring optical signal to-noise ratio |
CN109716827B (zh) * | 2016-12-16 | 2021-07-23 | 松下电器(美国)知识产权公司 | 终端及通信方法 |
-
2004
- 2004-02-02 JP JP2004025775A patent/JP4016953B2/ja not_active Expired - Fee Related
Also Published As
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JP2005218047A (ja) | 2005-08-11 |
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