Invention Grant
- Patent Title: Optical receiver for controlling wavelength of local oscillation light and local oscillation light control method
- Patent Title (中): 用于控制本地振荡光的波长的光接收器和本地振荡光控制方法
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Application No.: US12496274Application Date: 2009-07-01
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Publication No.: US08391725B2Publication Date: 2013-03-05
- Inventor: Shoichiro Oda , Takeshi Hoshida , Hisao Nakashima , Takahito Tanimura
- Applicant: Shoichiro Oda , Takeshi Hoshida , Hisao Nakashima , Takahito Tanimura
- Applicant Address: JP Kawasaki
- Assignee: Fujitsu Limited
- Current Assignee: Fujitsu Limited
- Current Assignee Address: JP Kawasaki
- Agency: Staas & Halsey LLP
- Priority: JP2008-281532 20081031
- Main IPC: H04B10/06
- IPC: H04B10/06
Abstract:
While altering a plurality of wavelength setting parameters according to a control sequence, a local oscillation light having a wavelength controlled by those wavelength setting parameters is generated. Further, the received signal light and the generated local oscillation light are mixed, and if an electric signal is generated by photoelectric conversion from the resulting light, then the wavelength control of the local oscillation light is terminated.
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