JP2015011354A - 自己自動利得制御分散型ラマン増幅器及び自動利得制御方法 - Google Patents
自己自動利得制御分散型ラマン増幅器及び自動利得制御方法 Download PDFInfo
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- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/094003—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
- H01S3/1301—Stabilisation of laser output parameters, e.g. frequency or amplitude in optical amplifiers
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/30—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects
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- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
- H01S3/0941—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a laser diode
- H01S3/09415—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light of a laser diode the pumping beam being parallel to the lasing mode of the pumped medium, e.g. end-pumping
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
- H01S3/16—Solid materials
- H01S3/1601—Solid materials characterised by an active (lasing) ion
- H01S3/1603—Solid materials characterised by an active (lasing) ion rare earth
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- H01S3/23—Arrangements of two or more lasers not provided for in groups H01S3/02 - H01S3/22, e.g. tandem arrangements of separate active media
- H01S3/2375—Hybrid lasers
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
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- General Physics & Mathematics (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Abstract
Description
(例えば特許文献1参照。)
120 セルフ−AGCモニター
140 ラマンポンプレーザーモジュール
150 RFA制御回路
160 セルフAGCファームウエア
170 ASCII通信部
Claims (6)
- 伝送ファイバーで発生する信号損失を補償するためにポンプ光を発生するラマンポンプレーザーモジュールと、
前記ポンプ光を伝送ファイバーに入力するポンプ/信号結合器と、
セルフ−AGC状態をモニターして光信号を電気信号に変換して出力するセルフ−AGCモニターと、
前記セルフ−AGCモニターで出力された電気信号を用いて前記ラマンポンプレーザーモジュールを制御するための電気信号を発生するRFA制御回路と、
前記RFA制御回路を通じて受信したモニター信号を用いてターゲットポンプレーザー値を発生し、前記RFA制御回路に制御信号を伝送するセルフAGCファームウエアと、
外部ユーザーにモニター及び制御情報を送受信するASCII通信部と、を含むことを特徴とする自己自動利得制御分散型ラマン光増幅器。 - 前記セルフ−AGCモニターは第1フィルターと第2フィルター、及びタップカプラーと、から構成され、前記第1フィルターと第2フィルター、及びタップカプラーはBPD、RPD、及びOPDにそれぞれ連結され、
前記ラマンポンプレーザーモジュールはB−ポンプ、R−ポンプ、及びポンプ結合器と、から構成され、
前記RFA制御回路はポンプLDバイアス、TEC制御回路、低パワーモニター回路部、及び広ダイナミックレンジモニター回路と、から構成され、
前記セルフAGCファームウエアはポンプLD APCアルゴリズム、EDFA ASE補償アルゴリズム、及び総パワー変換ソフトウェアを含むことを特徴とする請求項1に記載の自己自動利得制御分散型ラマン光増幅器。 - 前記第1フィルターは信号光波長と重ならない短波長帯域のうち、一部の波長をフィルターし、前記第1フィルターでフィルターする前記一部の波長は、1515〜1525nmの波長帯域であることを特徴とする請求項2に記載の自己自動利得制御分散型ラマン光増幅器。
- 前記第2フィルターは信号光波長と重ならない長波長帯域のうち、一部の波長をフィルターし、前記第1フィルターでフィルターする前記一部の波長は、1567〜1575nmの波長帯域であることを特徴とする請求項2に記載の自己自動利得制御分散型ラマン光増幅器。
- ユーザーのラマン利得をセットする段階と、
入力アラーム、反射アラームの安全度チェックを行う段階と、
ポンプ用LDによりファイバーの形態の分析を行う段階と、
ファイバーの形態及びEDFA ASEの決定を行う段階と、
基準RPD及びBPD値を計算する段階と、
前記基準RPD及びBPDとセルフAGCモニターにより読み取られた現在動作中のBPD、RPD、OPDの値を比較する段階と、
B−ポンプを制御し、前記基準BPDとセルフAGCモニターにより読み取られた現在動作中のBPDの値を比較して同一であるか否かを判断する段階と、
R−ポンプを制御し、前記基準RPDとセルフAGCモニターにより読み取られた現在動作中のRPDの値を比較して同一であるか否かを判断する段階と、を含む自己自動利得制御分散型ラマン光増幅器の自動利得制御方法。 - 前記ファイバーの形態及びEDFA ASEを決定する段階は、
初期バイアスの印加を開始する段階と、
n種類の目標OPD読み取り値と現在OPD読み取り値の比較をn回行ってn個のファイバー形態を決定する段階と、
ファイバー形態の決定及び前記基準RPDと基準BPDの計算を完了する段階と、を含むことを特徴とする請求項5に記載の自己自動利得制御分散型ラマン光増幅器の自動利得制御方法。
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KR20130074145A KR101489279B1 (ko) | 2013-06-27 | 2013-06-27 | 자기 자동이득제어 분산형 라만증폭기의 자동이득제어방법 |
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KR102298972B1 (ko) * | 2014-10-21 | 2021-09-07 | 삼성전자 주식회사 | 전자 장치의 엣지에서 수행되는 제스처를 기반으로 하는 동작 수행 |
CN105207719B (zh) * | 2015-08-25 | 2017-06-27 | 武汉光迅科技股份有限公司 | 级联Hybrid放大器的控制方法及系统 |
CN107437721B (zh) * | 2017-08-31 | 2019-05-31 | 武汉光迅科技股份有限公司 | 一种分布式拉曼光纤放大器的增益瞬态控制系统和方法 |
CN108458814B (zh) * | 2018-07-09 | 2019-10-08 | 太原理工大学 | 面向光纤拉曼温度传感系统的自校准检测装置及温度解调方法 |
CN110601766B (zh) * | 2019-09-10 | 2020-11-13 | 武汉光迅科技股份有限公司 | 一种控制方法及光纤放大器 |
US11588295B2 (en) | 2019-11-01 | 2023-02-21 | Ii-Vi Delaware, Inc. | Pump modulation for optical amplifier link communication |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001109025A (ja) * | 1999-10-05 | 2001-04-20 | Nippon Telegr & Teleph Corp <Ntt> | ラマン増幅器及び光通信システム |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999040695A1 (fr) * | 1998-02-06 | 1999-08-12 | Fujitsu Limited | Amplificateur optique, procede de commande de la source de lumiere d'excitation dans un amplificateur optique et procede de commande de l'amplificateur optique |
JP3844902B2 (ja) * | 1999-03-02 | 2006-11-15 | 富士通株式会社 | 波長多重用光増幅器及び光通信システム |
EP1128504B8 (en) * | 2000-02-23 | 2009-08-12 | Fujitsu Limited | Optical amplifier |
WO2002021204A1 (en) * | 2000-09-07 | 2002-03-14 | Fujitsu Limited | Optical amplifier using raman amplification |
WO2002021203A1 (en) * | 2000-09-07 | 2002-03-14 | Fujitsu Limited | Optical amplifier and optical communication system |
KR20030028661A (ko) * | 2001-09-25 | 2003-04-10 | 주식회사 머큐리 | 광대역용 광섬유 증폭기 |
US6697397B2 (en) * | 2001-11-15 | 2004-02-24 | Alcatel | Wavelength compensated ALC loop |
US7064890B2 (en) * | 2001-12-10 | 2006-06-20 | Sumitomo Electric Industries, Ltd. | Optical amplifier and optical communication system including the same |
US7525725B2 (en) * | 2002-03-05 | 2009-04-28 | Sumitomo Electric Industries, Ltd. | Optical amplification module, optical amplifier, optical communication system, and white light source |
JP3992565B2 (ja) * | 2002-08-27 | 2007-10-17 | 富士通株式会社 | 光伝送システム |
US7164527B2 (en) * | 2002-11-12 | 2007-01-16 | Lucent Technologies Inc. | Method, apparatus and system for controlling the effects of power transients in optical transmission systems |
US7554721B2 (en) * | 2003-08-01 | 2009-06-30 | Fujitsu Limited | Raman amplifier and Raman amplifier adjustment method |
JP4198082B2 (ja) * | 2004-03-24 | 2008-12-17 | 富士通株式会社 | 光増幅器の利得モニタ方法および装置 |
KR20060046888A (ko) * | 2004-11-12 | 2006-05-18 | 한국전자통신연구원 | 광섬유 라만 증폭기의 이득 제어 장치 및 방법 |
JP4929664B2 (ja) * | 2005-03-14 | 2012-05-09 | 富士通株式会社 | 光増幅器の制御装置、光増幅器の制御方法、光伝送装置、光増幅器、帯域単位利得等化器を用いた光増幅器及び帯域単位利得等化器を用いた波長多重伝送システム |
KR100714102B1 (ko) * | 2005-09-13 | 2007-05-02 | 한국전자통신연구원 | 채널 출력 평탄화 기능을 가지는 광증폭 장치 |
JP5842438B2 (ja) * | 2011-07-28 | 2016-01-13 | 富士通株式会社 | 中継装置、中継方法及び光伝送システム |
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