半导体激光器功率控制系统的研究Research on power control system of semiconductor laser
郭倩,朱耀麟,朱磊,刘秀平
摘要(Abstract)：
为了保障半导体激光器具有稳定的发射功率和良好的工作环境,设计完成了自动功率控制电路和自动温度控制电路。采用负反馈运算放大电路构成恒流源,光电反馈实现闭环控制,可稳定输出功率。同时,利用FPGA控制DRV593驱动半导体制冷器完成自动温度控制,将半导体激光器的工作温度控制在一定范围内。实验结果表明,系统工作时,温度控制精度可达±0.1℃,激光器功率稳定度优于0.74%,实现了精确的功率控制,满足实际应用需求。
关键词(KeyWords)： 自动功率控制;自动温度控制;光电反馈;半导体制冷器;激光器;恒流源
基金项目(Foundation): 陕西省教育厅自然科学专项计划(无线光正交频分复用系统高阶调制研究);; 西安市科技局科技创新计划(201805030YD8CG14(12))~~
作者(Author): 郭倩,朱耀麟,朱磊,刘秀平
DOI: 10.16652/j.issn.1004-373x.2018.18.034
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