发明授权
- 专利标题： Method and system for optical fiber transmission using raman amplification
- 专利标题（中）： 使用拉曼放大的光纤传输方法和系统
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申请号： US10273098申请日： 2002-10-18
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公开(公告)号： US06907157B2公开(公告)日： 2005-06-14
- 发明人: Shin-ichirou Harasawa
- 申请人： Shin-ichirou Harasawa
- 申请人地址： JP Kawasaki
- 专利权人： Fujitsu Limited
- 当前专利权人： Fujitsu Limited
- 当前专利权人地址： JP Kawasaki
- 代理机构： Staas & Halsey LLP
- 优先权： JP2002-121843 20020424
- 主分类号： G02F1/35
- IPC分类号： G02F1/35 ; H01S3/094 ; H01S3/0941 ; H01S3/10 ; H01S3/30 ; H04B10/07 ; H04B10/29 ; H04B10/296 ; H04B10/14 ; G02B6/28
摘要：
In the method according to the present invention, an optical fiber transmission line for transmitting signal light is first provided. A Raman repeater 16 having a pumping source for supplying pump light propagating in a direction opposite to the direction of propagation of the signal light to the optical fiber transmission line is provided in the middle of the optical fiber transmission line. A terminal device having a similar pumping source is provided at one end of the optical fiber transmission line. A control signal is transmitted to the Raman repeater 16 by the pump light from the terminal device. The Raman repeater is controlled by the control signal transmitted. According to this method, the Raman repeater is controlled by the pump light from the terminal device provided at the receiving end, thereby eliminating a problem arising in the case of control by signal light as in the prior art.
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