发明申请
- 专利标题： MULTI-WAVELENGTH LIGHT AMPLIFIER
- 专利标题（中）： 多波长光放大器
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申请号： US13177065申请日： 2011-07-06
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公开(公告)号： US20110262140A1公开(公告)日： 2011-10-27
- 发明人: Yasushi SUGAYA , Miki Takeda , Susumu Kinoshita , Terumi Chikama
- 申请人： Yasushi SUGAYA , Miki Takeda , Susumu Kinoshita , Terumi Chikama
- 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
- 主分类号： H04J14/02
- IPC分类号： H04J14/02
摘要：
A multi-wavelength light amplifier includes a first-stage light amplifier which has a first light amplifying optical fiber amplifying a light input, a second stage light amplifier which has a second light amplifying optical fiber amplifying a first light output from the first-stage light amplifier, and an optical system which maintains a second light output of the second-stage light amplifier at a constant power level. The first-stage and second-stage light amplifiers have different gain vs wavelength characteristics so that the multi-wavelength light amplifier has no wavelength-dependence of a gain thereof.
公开/授权文献
- US08320040B2 Multi-wavelength light amplifier 公开/授权日：2012-11-27