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Invention Application
US20030184848A1 Raman fiber amplification stage, optical system and method to control the Raman amplification 审中-公开
拉曼光纤放大级，光学系统和控制拉曼放大的方法

  • Patent Title: Raman fiber amplification stage, optical system and method to control the Raman amplification
  • Patent Title (中): 拉曼光纤放大级，光学系统和控制拉曼放大的方法
  • Application No.: US10359150
    Application Date: 2003-02-06
  • Publication No.: US20030184848A1
    Publication Date: 2003-10-02
  • Inventor: Dominique Bayart , Florence Leplingard
  • Applicant: Alcatel
  • Applicant Address: null
  • Assignee: Alcatel
  • Current Assignee: Alcatel
  • Current Assignee Address: null
  • Priority: EP02360105.7 20020327
  • Main IPC: H01S003/00
  • IPC: H01S003/00
Raman fiber amplification stage, optical system and method to control the Raman amplification
Abstract:
The present invention relates to a cascaded multi-wavelength Raman fiber amplification stage with a length of optical fiber having input (15) and output (16) sections, pump laser means (11) for introducing pump radiation of wavelength nullp into said length of optical fiber (13), at least two pairs of reflector means (151,161; . . . ;159, 169), spaced-apart the length of optical fiber (13), at least one of said pairs of reflector means has an output reflector mean (161, 162, 163), with a reflectivity lower than 100% and a feed back loop with: a tap coupler (20) for deriving a low percentage of the optical output signal as a optical monitor signal (28), at least one wavelength selecting element (21, 25,26, 27) for the optical monitor signal (28), at least one opto-electrical converter (23, 231,232,233) generating a electrical signal and a control circuit (27) for the electrical signal connected to adjustment means (181, 182, 183) adjusting the reflectivity of the output reflector means (161, 162, 163).
Abstract(Chinese):

本发明涉及具有输入（15）和输出（16）部分的具有一定长度的光纤的级联多波长拉曼光纤放大级，泵浦激光装置（11）用于将波长兰普的泵浦辐射引入所述光学长度 光纤（13），至少两对反射器装置（151,161; ...，159,169），其间隔开所述长度的光纤（13），所述反射器对中的至少一个具有输出反射器平均值 （161,162,163），具有低于100％的反射率和反馈回路，具有：用于导出低百分比的光输出信号作为光监视信号的抽头耦合器（20），至少一个 用于所述光学监视信号（28）的波长选择元件（21,25,26,27），至少一个产生电信号的光电转换器（23,231,232,233）和用于所述电信号的控制电路（27），所述电信号连接到 调整所述输出反射器装置的反射率的调节装置（181,182,183） （161,162,163）。

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