Design of laser diode stable output system

被引：0

作者：

Bo, Liu ^{[1
]}

Cao Rui-ming ^{[1
]}

机构：

[1] Harbin Univ Sci & Technol, Sch Measurement Control Tech & Commun Engn, Harbin 150040, Peoples R China

来源：

SEMICONDUCTOR LASERS AND APPLICATIONS III | 2008年 / 6824卷

关键词：

laser diode; semiconductor cooler; PWM driver; microprocessor;

D O I：

10.1117/12.756370

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

High-stability output's system of laser diode is introduced in this paper. The system which is based on the MCU of MSP430 has been designed light power feedback loop and coller of TEC. It includes stable current,protecting circuit, light power feedback loop, temperature controlling,power display and so on. It is also able to control and show the power at the real time. The power could be set by botton too. The software of slow start up,slow close and the protecting relay are adopted by MCU. DRV592 is introduced as PWM driver to control the current of TEC. The duty cycle is generate by MCU. In order to control temperature, it is changed to influence the current of TEC. The power that is sampled by photodiode which is integrated in the laser diode is controlled by the micro-processing. The laser is monitored by voltage control circuit and current control circuit at the real time.

引用

页数：6