兵工自动化Issue(9)：76-80,5.DOI:10.7690/bgzdh.2014.09.021
一种小型脉冲激光器能量和重复频率测量电路
A Small Laser Pulse Energy and Repetition Frequency Measurement Circuit
摘要
Abstract
A kind of circuit based on PIN photodiode is designed for measuring the frequency and power of laser pulse to solve the real-time detection problem of traditional laser power meter. The light intensity is decayed by the optical glass fixed in the front of the laser capsule. The photoelectric conversion is achieved by the PIN photodiode. After being processed through the conditioning circuit, the electricity signal is transferred to the microcontroller which calculates the pulse frequency in interrupt mode by counting the pulse amount and computes the pulse power by collecting the output voltage. This measuring system is able to monitor the state of high-power laser in real time. Results show that the frequency and power measurement precision of the circuit turns out to be less than 0.02% and 1% respectively. The sensitivity of this design is higher than 0.8 V/mW, while the response time is lower than 3 ns.关键词
激光脉冲频率/光电检测/PIN光电二极管/前置放大Key words
frequency of the laser pulse/photoelectric detection/PIN photodiode/pre-amplifier分类
信息技术与安全科学引用本文复制引用
侯宏录,辛光泽,郭淑玲..一种小型脉冲激光器能量和重复频率测量电路[J].兵工自动化,2014,(9):76-80,5.基金项目
国防科技重点实验室基金项目(9140C360302120C36136) （9140C360302120C36136）
