量子电子学报2025，Vol.42Issue(6)：795-805,11.DOI:10.3969/j.issn.1007-5461.2025.06.007
基于数字PID的DFB激光器温度控制系统
Temperature control system for DFB lasers based on digital PID
摘要
Abstract
Distributed feedback(DFB)semiconductor lasers are core components of gas sensors based on tunable diode laser absorption spectroscopy technology,and their output wavelength stability is affected by the stability of operating temperature.In order to provide stable and reliable light source for DFB lasers,a high stability laser temperature control system based on an integral-separated proportional-integral-derivative(PID)algorithm has been developed in this work.Using the thermoelectric cooler(TEC)inside the laser as the temperature control element and the negative temperature coefficient thermistor as the temperature measurement element,we design a TEC driving circuit based on pulse width modulation technology and a high-precision temperature acquisition circuit for the system,Using the temperature control system,the temperature control test of 1654 nm DFB laser is carried out.The experimental results show that the temperature control range of the system is 15～35℃,the response time is lower than 13 s,the temperature control accuracy of the system reaches±0.002℃within 2 hours,and the temperature stability reaches 0.016%.Using this temperature control system,the DFB laser operates stably with an output wavelength standard deviation of 0.00011 nm.关键词
光电子学/分布式反馈半导体激光器/比例-积分-微分算法/高稳定性/温度控制Key words
optoelectronics/distributed feedback semiconductor laser/proportional-integral-derivative algorithm/high stability/temperature control分类
电子信息工程引用本文复制引用
余志超,姚路,阚瑞峰,孙方亮,许振宇,张先燚..基于数字PID的DFB激光器温度控制系统[J].量子电子学报,2025,42(6):795-805,11.基金项目
中国科学院合肥研究院院长基金(YZJJ202302-CX),中国科学院青年创新促进会(2022451) （YZJJ202302-CX）
