Acta Photonica Sinica, Volume. 43, Issue 4, 414001(2014)
High Power Laser Facility Front-end Energy Control System
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.
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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): 414001
Received: Jan. 1, 2013
Accepted: --
Published Online: May. 4, 2014
The Author Email: Bing-yu YIN (lanxue_1988@126.com)