【摘要】 介绍了一种利用单片机控制的大功率半导体激光驱动电源。系统采用恒流源、光功率反馈、继电保护、慢启动、慢关闭等软保护措施,实现对半导体激光器输出光功率的软调整及有效保护。同时,采用半导体温度控制技术,对半导体激光器进行恒温控制,从而实现了半导体激光器光功率稳定、可靠、准确输出。经实验证明,在0℃-40℃的环境温度下,该驱动电源可使激光器的光功率稳定度优于0.5%;温度控制精度优于±0.3℃。更多还原

【Abstract】 A high-power diode laser power supply controlled by microprocessor is presented. To achieve the effective soft protection, soft start-up,soft adjustment and soft close of semiconductor laser, the protection of relay,slow start-up, slow close, slow adjusting and the protection of over pressure and over current etc. measure are adopted. In the same time, to make diode laser working temperature invariant, the temperature control technology of semiconductor is applied. It is implemented that exports of optics power and wavelength of semiconductor laser are accurate, steady and reliable, and stronger ability in noise restraint are provided by controlling the temperature and the working current of semiconductor laser. Having been proved by the experiment, under environment temperature of 0℃-40℃, the diode laser power supply can make the stability of optics power export of semiconductor laser better than 0. 5%; Temperature control accuracy is better than +0. 3℃.更多还原