JP4299727B2 - 光増幅器安定化装置 - Google Patents
光増幅器安定化装置 Download PDFInfo
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- JP4299727B2 JP4299727B2 JP2004150109A JP2004150109A JP4299727B2 JP 4299727 B2 JP4299727 B2 JP 4299727B2 JP 2004150109 A JP2004150109 A JP 2004150109A JP 2004150109 A JP2004150109 A JP 2004150109A JP 4299727 B2 JP4299727 B2 JP 4299727B2
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- optical
- optical amplifier
- output
- signal
- light
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- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Description
内に配置したとしても、様々な条件変化によりブリルアン散乱発生条件が変化した場合には、固定的な(静的な)位相変調印加だけでは、ブリルアン散乱の抑制効果が充分でないという問題点があった。
2 位相変調器
3 信号変調形式変換器
4 PD
5 CPU
6 サーキュレータ
7 光ファイバ
Claims (4)
- 光増幅手段と、位相変調手段と、信号変調形式変換手段と、光増幅手段の出力端に接続された光伝送手段とを少なくとも備え、光ファイバ伝送システムの中継器において、固定的な位相変調印加で光増幅器の安定化を行う光増幅器安定化装置であって、
前記光伝送手段による後方散乱光をモニタする手段と、
モニタ値に基づいて、
前記光増幅手段の出力パワー、前記光増幅手段の利得、前記光増幅手段の入力端に配置した前記位相変調手段の変調周波数のうち少なくとも1つと、前記光増幅手段の入力端に配置した前記信号変調形式変換手段の動作と
を制御する手段とを備えたことを特徴とする光増幅器安定化装置。 - 光増幅手段と、位相変調手段と、信号変調形式変換手段とを少なくとも備え、光ファイバ伝送システムの中継器において、固定的な位相変調印加で光増幅器の安定化を行う光増幅器安定化装置であって、
前記光増幅手段の出力端における光信号出力をモニタする手段を備える場合、または、前記光増幅手段の入力端における後方散乱光をモニタする手段を備える場合、または、前記光増幅手段の出力端における光信号出力をモニタする手段、および、前記光増幅手段の入力端における後方散乱光をモニタする手段を備える場合において、
モニタ値に基づいて、
前記光増幅手段の出力パワー、前記光増幅手段の利得、前記光増幅手段の入力端に配置した前記位相変調手段の変調周波数のうち少なくとも1つと、前記光増幅手段の入力端に配置した前記信号変調形式変換手段の動作と
を制御する手段とを備えたことを特徴とする光増幅器安定化装置。 - 信号光波長の光周波数f(GHz)に対して、光周波数が(f−10)(GHz)におけるパワースペクトルをモニタすることを特徴とする請求項1または請求項2に記載の光増幅器安定化装置。
- 光周波数(f−10)(GHz)における一定時間、累積した電力をモニタし、その光電力を制御信号とすることを特徴とする請求項3に記載の光増幅器安定化装置。
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JP2004150109A JP4299727B2 (ja) | 2004-05-20 | 2004-05-20 | 光増幅器安定化装置 |
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JP2004150109A JP4299727B2 (ja) | 2004-05-20 | 2004-05-20 | 光増幅器安定化装置 |
Publications (2)
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JP2005332986A JP2005332986A (ja) | 2005-12-02 |
JP4299727B2 true JP4299727B2 (ja) | 2009-07-22 |
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JP2004150109A Expired - Fee Related JP4299727B2 (ja) | 2004-05-20 | 2004-05-20 | 光増幅器安定化装置 |
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Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008151384A1 (en) * | 2007-06-14 | 2008-12-18 | The University Of Sydney | Optical signal to noise monitor |
JP5119998B2 (ja) * | 2008-03-18 | 2013-01-16 | 富士通株式会社 | 光増幅装置および光増幅装置の駆動方法 |
US9837787B2 (en) * | 2013-11-28 | 2017-12-05 | Macquarie University | Method and a system for generating a Raman second Stokes light to a source light |
US10133014B2 (en) * | 2017-04-07 | 2018-11-20 | Elenion Technologies, Llc | Controlling back scattering in optical waveguide systems |
CN112697178A (zh) * | 2020-11-11 | 2021-04-23 | 浙江工业大学 | 一种基于压缩感知的布里渊光信号采集方法 |
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2004
- 2004-05-20 JP JP2004150109A patent/JP4299727B2/ja not_active Expired - Fee Related
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