光子学报, 2014, 43 (4): 0414001, 网络出版: 2014-05-04
高功率激光装置前端能量控制系统
High Power Laser Facility Front-end Energy Control System
激光物理 自动控制应用理论 闭环比例微分积分控制 脉冲激光能量 激光应用 激光脉冲 能量控制 控制设备 Laser physics Automation application theory Closed loop proportion integral derivative control Pulse laser energy Laser applications Laser pulses Energy control Control facilities
摘要
针对神光II高功率激光装置前端预放系统输出的能量设计了一种远程能量控制系统,包括半波片-偏振片组合衰减装置以及闭环负反馈控制系统的设计.在光学调整方案上,设计了半波片-偏振片组合衰减装置,对激光能量进行衰减控制.在控制算法上,实现了对能量控制的闭环比例积分微分调整.在调整准确度上,实现了调整准确度为1%,误差低于0.1%的精确控制.本文所设计的高功率激光装置前端能量控制系统利用能量计、步进电机与计算机软件之间的相互通信来实现对能量的闭环比例积分微分控制,适用范围广,可扩展性好,并具有简单易调整、控制精密、结果准确等特点.
Abstract
A remote energy control system for shengguang-II high power laser is designed, including a half-wave plate-polarizer combination attenuation device and a closed-loop negatinve feedback control method. For the optical adjustment programs, a half-wave plate-polarizer combination attenuation device is designed to control the laser energy. For the control algorithm, a closed-loop proportion integral derivative control adjustment of energy is realized. For the adjustment precision, it achieves a regulation accuracy of 1% and the ralative error is lower to 0.1%. The remote energy control system of high power pulsed laser in this article uses the communication of eneryg meter, stepper motor and computer software to achieve the closed-loop proportion intergral derivative control of the laser energy. It has the feature of widdly range of applications, easy adjustment, high control accuracy and good expansibility.
殷冰雨, 李国杨, 李学春, 范薇. 高功率激光装置前端能量控制系统[J]. 光子学报, 2014, 43(4): 0414001. YIN Bing-yu, LI Guo-yang, LI Xue-chun, FAN Wei. High Power Laser Facility Front-end Energy Control System[J]. ACTA PHOTONICA SINICA, 2014, 43(4): 0414001.