公开(公告)号：US5036519A

公开(公告)日：1991-07-30

申请号：US446583

申请日：1989-12-05

申请人： Hidetoshi Ema ,  Hiroshi Takahashi

发明人： Hidetoshi Ema ,  Hiroshi Takahashi

IPC分类号： G11B7/125 ,  H01S5/0683

CPC分类号： G11B7/126 ,  H01S5/0683 ,  H01S5/06832

摘要： A semiconductor laser controller converts the light output of the driven laser to a photovoltaic current proportional to that light output and separates the current into high and low frequency components. A negative feedback loop controls the forward current of the laser such that the sum of these high and low frequency components of the photovoltaic current equal a reference signal current defining the light output of the laser. A control unit controls the reference current such that a voltage proportional to the low frequency component of the photovoltaic current equals a reference voltage corresponding to the reference current.

摘要翻译： 半导体激光器控制器将驱动激光器的光输出转换成与该光输出成比例的光电流，并将电流分离成高频和低频分量。 负反馈环路控制激光器的正向电流，使得光电流电流的这些高频和低频分量的总和等于限定激光器的光输出的参考信号电流。 控制单元控制参考电流，使得与光伏电流的低频分量成比例的电压等于对应于参考电流的参考电压。