公开(公告)号：US08190034B2

公开(公告)日：2012-05-29

申请号：US12362836

申请日：2009-01-30

申请人： Moriyasu Ichino ,  Junichi Kataoka ,  Seiichi Ishikura

发明人： Moriyasu Ichino ,  Junichi Kataoka ,  Seiichi Ishikura

IPC分类号： H04B10/06 ,  G01J1/44

CPC分类号： H04J14/0226 ,  H04B10/6911 ,  H04J14/0232 ,  H04J14/0247 ,  H04J14/0252

摘要： An optical receiver is disclosed, in which no additional photodiode to monitor the optical input level and no temperature control unit are necessary. The receiver of the invention provides an avalanche photodiode (APD) to receiver the first optical signal with the first wavelength and a PIN-PD to receive the second optical signal with the second wavelength. The optical input level for the APD is indirectly determined through the photocurrent generated by the PIN-PD and the bias voltage for the APD is so adjusted that the APD shows an optimum multiplication factor for the optical input level.

摘要翻译： 公开了一种光接收器，其中不需要额外的光电二极管来监视光输入电平并且不需要温度控制单元。 本发明的接收机提供雪崩光电二极管（APD）以接收具有第一波长的第一光信号和PIN-PD以接收具有第二波长的第二光信号。 通过由PIN-PD产生的光电流间接地确定APD的光输入电平，并且对APD的偏置电压进行如此调整，使得APD显示用于光输入电平的最佳乘法因子。