发明授权
- 专利标题: Pumping light generator and fiber Raman amplifier
- 专利标题(中): 泵浦光发生器和光纤拉曼放大器
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申请号: US09882352申请日: 2001-06-15
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公开(公告)号: US06728437B2公开(公告)日: 2004-04-27
- 发明人: Noboru Edagawa , Masatoshi Suzuki
- 申请人: Noboru Edagawa , Masatoshi Suzuki
- 优先权: JP2000-182164 20000616
- 主分类号: G02B626
- IPC分类号: G02B626
摘要:
An object of the present invention is to prevent an increase of the degree of polarization of an output pumping light even if one of pumping light sources has a failure. Laser diodes (30a, 30b) are composed of FP-LDs made of InGaAsP to laser-oscillate at 1480 nm band. The outputs from the laser diodes (30a, 30b) enter a polarizing beam splitter (32) in orthogonal state of polarization and are combined there. The combined light by the polarizing beam splitter (32) enters a depolarizing element (34) and is depolarized there.
公开/授权文献
- US20010053264A1 Pumping light generator and fiber raman amplifier 公开/授权日:2001-12-20