PID参数整定的半导体激光器温度控制
发布时间：2018-07-13 09:11
【摘要】：为了降低环境温度对近红外分布反馈式激光器(DFB)的输出光功率以及中心波长波动的影响,采用PID控制方案设计了一种DFB激光器温度控制系统.PID系统通过硬件电路调整比例(K_p)、积分(K_i)及微分(K_d)参数来寻求动态平衡建立时间和最大振荡幅度的最佳值.结果表明,该温度控制系统的控制精度为±0.05℃,温度控制范围为10~50℃.通过较长时间的监测,DFB激光器的温度始终处于稳定状态,输出的中心波长没有出现漂移,能够满足气体浓度高检测精度的要求.
[Abstract]:In order to reduce the influence of ambient temperature on the output power and central wavelength fluctuation of near-infrared distributed feedback laser (DFB), A temperature control system of DFB laser. Pid system is designed by using pid control scheme to find the best value of dynamic balance setting time and maximum oscillatory amplitude by adjusting the parameters of hardware circuit such as Kapp, integral and Kd. The results show that the control precision of the temperature control system is 卤0.05 鈩，
本文编号：2118872
[Abstract]:In order to reduce the influence of ambient temperature on the output power and central wavelength fluctuation of near-infrared distributed feedback laser (DFB), A temperature control system of DFB laser. Pid system is designed by using pid control scheme to find the best value of dynamic balance setting time and maximum oscillatory amplitude by adjusting the parameters of hardware circuit such as Kapp, integral and Kd. The results show that the control precision of the temperature control system is 卤0.05 鈩，
本文编号：2118872
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