发明授权
- 专利标题: Optical amplifier for use in optical communications equipment
- 专利标题(中): 用于光通信设备的光放大器
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申请号: US09677759申请日: 2000-10-03
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公开(公告)号: US06373623B1公开(公告)日: 2002-04-16
- 发明人: Chihiro Ohshima , Susumu Kinoshita , Terumi Chikama
- 申请人: Chihiro Ohshima , Susumu Kinoshita , Terumi Chikama
- 优先权: JP9-285905 19971017
- 主分类号: H01S300
- IPC分类号: H01S300
摘要:
The output level of pumping light supplied from a pumping light source is varied using a variable attenuator, which is controlled by a variable attenuator driver circuit. By separating a portion containing the pumping light source from a portion containing an amplification medium, it becomes possible to prevent heat emitted by the pumping light source from adversely affecting the amplification medium. By arranging the portion containing the pumping light source such that a pumping light source or sources can be added when necessary, optical transmission system requirements of having more pumping light sources for system upgrade can be accommodated readily. By packaging portions containing amplification media, an optical amplifier can be made small.