大功率CO_2激光器尾镜取样功率测控的研究  

Power detection and control system for high power CO_2 laser

作　　者：柳娟[1] 贺昌玉[1] 李家镕[1] 

机构地区：[1]华中科技大学激光技术与工程研究院,武汉430074

出　　处：《激光技术》2003年第6期588-590,共3页Laser Technology

摘　　要：激光功率是激光器中最基本的参数 ,激光功率的稳定、准确将对激光加工等领域产生直接而巨大的影响。在大功率CO2 激光器功率测控系统中 ,采用尾镜即全反球面镜漏光进行激光功率采样 ,并通过西门子S7 2 0 0PLC实现对整个系统的激光功率测控 ,可以有效提高对激光器的控制精度和稳定性 。Power is a basic parameter of the laser. Its’ stabilization and accuracy will directly influence laser process and many other fields. The power detection and control system for high power CO 2 laser samples the laser power by the transmission light of the high reflective mirror. Furthermore,it can detect and monitor the laser power of the whole system by a S7-200 PLC. It greatly enhances the stabilization and accuracy of the control,and has no influence on the output.

关 键 词：激光功率 全反射镜漏光 薄膜探测器 PLC 测控系统 

分 类 号：TN248.2[电子电信—物理电子学] TP274.5[自动化与计算机技术—检测技术与自动化装置]