发明授权
- 专利标题： Bias circuit for a photodetector, and an optical receiver
- 专利标题（中）： 用于光电检测器的偏置电路和光接收器
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申请号： US10010565申请日： 2001-12-06
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公开(公告)号： US06707024B2公开(公告)日： 2004-03-16
- 发明人: Yoshinobu Miyamoto , Nobuaki Sato , Setsuo Misaizu , Hisaya Sakamoto , Akimitsu Miyazaki
- 申请人： Yoshinobu Miyamoto , Nobuaki Sato , Setsuo Misaizu , Hisaya Sakamoto , Akimitsu Miyazaki
- 主分类号： H01J4014
- IPC分类号： H01J4014
摘要：
A bias circuit for a photodetector by the present invention provides a bias voltage to the photodetector that performs electric current amplification according to the bias voltage supplied, and is characterized by comprising a power node and an auto-bias circuit that changes a time constant of the bias circuit for the photodetector according to an optical power received by the photodetector, the auto-bias circuit being connected between the power node and the photodetector, thereby reliability of operation of the photodetector is enhanced.
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