基于WMS的可调谐半导体激光器驱动与温控电路设计  

Design of tunable semiconductor laser driver and temperature control circuit based on WMS

作　　者：彭燕 矫雷子 郑培超[1] 董大明[2] 邢振[2] PENG Yan;JIAO Leizi;ZHENG Peichao;DONG Daming;XING Zhen(School of Optoelectronic Engineering,Chongqing University of Posts and Telecommunications,Chongqing 400065,China;Research Center of Intelligent Equipment,Beijing Academy of Agricultural and Forestry Sciences,Beijing 100097,China)

机构地区：[1]重庆邮电大学光电工程学院,重庆400065 [2]北京市农林科学院智能装备技术研究中心,北京100097

出　　处：《激光杂志》2024年第7期29-35,共7页Laser Journal

基　　金：国家杰出青年科学基金(No.32225035)、国家自然科学基金(No.32101609)。

摘　　要：针对可调谐半导体激光器工作时,其工作电流和工作温度的波动导致激光器的输出的波长和功率不能保持恒定的问题,设计了一套基于STM32F407为主控芯片联合FPGA的半导体激光器小型化驱动与温控电路。通过与上位机交互,系统可实现激光器驱动电流和工作温度的连续可调,使半导体激光器的输出光的波长在最佳的范围内。经过测试,系统的驱动模块电流稳定度为0.075%,电流的实际值与理论值之间的相对误差平均值为0.538%;温度电路的稳定度在0.03℃,完全满足实际应用需求。A miniaturized semiconductor laser driver and temperature control circuit based on STM32F407 microcontroller combined with FPGA is designed to address the issue of the wavelength and power output of tunable semiconductor lasers being unable to remain constant due to fluctuations in their operating current and temperature.By interacting with the host computer,the system can achieve continuous adjustment of the laser driving current and operating temperature,ensuring that the wavelength of the output light of the semiconductor laser is within the optimal range.After testing,the current stability of the drive module of the system is 0.075%,and the average relative error between the actual and theoretical values of the current is 0.538%;The stability of the temperature circuit is 0.03℃,fully meeting the practical application requirements.

关 键 词：FPGA STM32F407 激光器驱动电路 可调谐半导体激光器 

分 类 号：TN248.4[电子电信—物理电子学]