发明申请
- 专利标题： OPTICAL SIGNAL TRANSMISSION DEVICE, OPTICAL AMPLIFICATION DEVICE, OPTICAL ATTENUATION DEVICE AND OPTICAL SIGNAL TRANSMISSION METHOD
- 专利标题（中）： 光信号传输装置，光放大装置，光衰减器件和光信号传输方法
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申请号： US13033786申请日： 2011-02-24
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公开(公告)号： US20120050844A1公开(公告)日： 2012-03-01
- 发明人: Masato Nishihara , Toshiki Tanaka
- 申请人： Masato Nishihara , Toshiki Tanaka
- 申请人地址： JP Kawasaki-shi
- 专利权人： FUJITSU LIMITED
- 当前专利权人： FUJITSU LIMITED
- 当前专利权人地址： JP Kawasaki-shi
- 优先权： JP2010-050949 20100308
- 主分类号： H01S5/00
- IPC分类号： H01S5/00 ; H01S3/13 ; H01S3/067
摘要：
A generation unit generates a polarization multiplexing signal in which two optical signals, each polarization of which is orthogonal to each other, are combined. A detector detects the powers of the two optical signals contained in the polarization multiplexing signal generated by the generation unit. An amplifier amplifies, according to each polarization of the two optical signals contained in the polarization multiplexing signal generated by the generation unit, the powers of the two optical signals. An controller controls a gain of the amplifier with respect to each polarization of the two optical signals so as to reduce difference in the powers of the two optical signals detected by the detector.
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