基于晶体振荡电路和分频电路的集成激光器

发布时间：2018-03-14 14:15

  本文选题：半导体激光器　切入点：集成电路　出处：《激光杂志》2017年08期 　论文类型：期刊论文

【摘要】：目前半导体激光器大都输出功率不稳定,而且瞬态电流或电压尖峰等许多因素都很容易损坏激光器。针对这一类问题,设计了由晶体振荡电路和分频电路组成的集成激光器调节电路,对光源进行调节以减小背景光的影响。利用电压负反馈原理设计恒流驱动电路,通过防止电、断电冲击保护电路、通过延时软启动电路、过流保护电路以及纹波抑制电路的方法,保证了稳定控制半导体激光器的集成电路。利用PID控制器取代传统模拟电路,缩短激光器反应时间。实验结果表明,本文方法能有效稳定半导体激光器输出功率,延长半导体激光器使用寿命,适合实际应用。
[Abstract]:At present, most semiconductor lasers have unstable output power, and many factors, such as transient current or voltage spike, can easily damage the laser. An integrated laser regulating circuit composed of crystal oscillation circuit and frequency divider circuit is designed to adjust the light source to reduce the influence of background light. The constant current driving circuit is designed by using the principle of negative voltage feedback. By means of time-delay soft-start circuit, over-current protection circuit and ripple suppression circuit, the IC which can control semiconductor laser stably is ensured. The conventional analog circuit is replaced by PID controller. The experimental results show that the proposed method can effectively stabilize the output power of the semiconductor laser, prolong the lifetime of the semiconductor laser, and be suitable for practical application.
【作者单位】： 郑州工业应用技术学院机电工程学院;
【基金】：河南省高等学校重点科研项目(15B520015)
【分类号】：TN248.4
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本文编号：1611568