激光技术2012，Vol.36Issue(6)：771-775,5.DOI:10.3969/j.issn.1001-3806.2012.06.015
基于半导体激光器高精度恒温系统设计
Design of high precision constant temperature control systems based on laser diodes
廖志烨 1邓洪峰 1吴凌华 2张恩华 1张宇1
作者信息
- 1. 西南技术物理研究所,成都610041
- 2. 海军驻成都地区航空军事代表室,成都610041
- 折叠
摘要
Abstract
In order to obtain stable output power and wavelength from a semiconductor laser in a large range of temperature, according to the characteristics of small volume, light weight and the high requirement of temperature stability of a semiconductor laser, with a negative-coefficient heat-sensitive resistance as a temperature sensor, a temperature control system was designed based on a micro control unit ( MCU) and direct proportion-integration-differentiation ( PID ) algorithm. Changing the width and amplitude of the pulse width modulation signal output from the MCU to adjust the driving current and direction of the thermoelectric cooler, the temperature of the semiconductor laser was controlled at about 25℃ ± 0. 1℃. Experimental results show that the temperature control system is with high precision and fast responsibility in a large range of temperature, it is better than other similar products.关键词
光电子学/温度控制/MOSFET H桥/PID算法Key words
optoelectronics/temperature control/MOSFET H bridge/PID algorithm分类
信息技术与安全科学引用本文复制引用
廖志烨,邓洪峰,吴凌华,张恩华,张宇..基于半导体激光器高精度恒温系统设计[J].激光技术,2012,36(6):771-775,5.
