激光干涉仪光电检测电路的设计  

Design of a Photoeletric Detecting Circuit for Laser Interferometer

作　　者：刘日龙[1] 殷德奎[1] 

机构地区：[1]中国科学院上海技术物理研究所,上海200083

出　　处：《半导体光电》2010年第2期284-287,共4页Semiconductor Optoelectronics

摘　　要：依据大气垂直探测仪的设计要求,给出激光干涉信号光电检测电路的实现方法。通过选择合适的探测器,对前置放大级进行噪声分析,设计了低噪声光电转换前置放大电路。利用Multisim对2阶Butterworth低通滤波器进行仿真,验证了所设计的滤波器是可行的。简化设计了整形电路,从而获取脉冲输出信号。An implementation method of photoelectric detecting circuit for laser interferometry signals is provided according to the performance of the sounder. In order to design a low-noise preamplifier circuit, it is necessary to choose an appropriate photoelectric detector and to analyze the noise performance of preamplifer. A 2-step Butterworth low pass filter is designed and the simulation in Multisim environment proves that the filter is effective. A conditioning circuit is also designed for getting pulse output signals.

关 键 词：光电检测 放大器 滤波器 噪声 干涉 

分 类 号：TN247[电子电信—物理电子学]