›› 2016, Vol. 29 ›› Issue (6): 96-.

• 论文 • 上一篇    下一篇

基于ARM半导体激光器的驱动设计及测试

葛贤涛,瑚琦,高鹏飞,谈梦科   

  1. (上海理工大学 光电信息与计算机工程学院,上海 200093)
  • 出版日期:2016-06-15 发布日期:2016-06-22
  • 作者简介:葛贤涛(1991-),男,硕士研究生。研究方向:光电检测,嵌入式应用等。
  • 基金资助:

    国家自然科学基金资助项目(61178079);霍英东教育基金会青年教师基金资助项目(121010)

Semiconductor Laser Driver Design and Test Based on ARM

GE Xiantao,HU Qi,GAO Pengfei,TAN Mengke   

  1. (School of OpticalElectrical and Computer Engineering, University of Shanghai for Science and Techonlogy,
    Shanghai 20093, China)
  • Online:2016-06-15 Published:2016-06-22

摘要:

在半导体激光器的使用过程中,驱动电路直接影响着激光器的稳定性。对此文中提出了一种高效、稳定,宽功率输出范围的设计方案,采用采样电阻和恒流电路实现稳定的闭环控制,得到恒定的驱动电流;利用热敏电阻温度特性,温度控制电路结合单片机控制系统,实现温度的闭环控制,从而实现了稳定的温度控制要求;结合恒温,恒流控制以及单片机系统,设计功率闭环控制方案。实验结果表明,不同温度下,功率计测得功率与驱动电流成良好的线性关系,且功率范围宽、电路可靠工作时间长、激光器单色性稳定、系统稳定性好。

关键词: 激光器, 恒流, 恒温, 驱动电路

Abstract:

In the applications of the semiconductor laser , the driving circuit directly affects the stability of the laser . A design solution with high efficiency , stability , wide range of power  was put forward . In order to realize the stable closedloop control ,Sampling resistor and constant current circuit will be made use of , Then it gets a constant driving current . Using the themistor temperature properties and the control circuit of temperature with MCU control system , It obtains the temperature control of closedloop, which meets requirenment of stable temperature control.With the constant temperature , constant current and MCU system,a design solution of closedloop control will be realized. Experimental results show that the power measured by power meter has a good linear relationship with driving current and the range of power is wide. The circuit has a reliable long working time ; The laser has reliable monochromaticity ;System is reliable.

Key words: laser;constant current;constant temperature;driving circuit

中图分类号: 

  • TN248