Control system design of 515-nm high power laser

doi:10.37188/CO.2022-0133

CIOMP OpenIR

	Control system design of 515-nm high power laser
	Q.-R. Dong; Z.-D. Zhang; W.-G. Wang; T. Chen and F. Chen
	2022
发表期刊	Chinese Optics
ISSN	20971842
卷号	15 期号:5 页码:1013-1018
摘要	In order to realize the stable and safe output of lasers, a control system based on a 515-nm high-power laser is designed. Firstly, the pump drive module of the system is studied. The analog sampling of the module is completed by Field Programmable Gate Array (FPGA) and the calculation output is completed in Digital Signal Processing (DSP). The closed-loop control of the constant current source is completed by using the digital Proportion-Integral-Derivative (PID) algorithm. Secondly, a Thermo Electric Cooler (TEC) is used to achieve the stable temperature control of the frequency doubling crystal module, and the Negative Temperature Coefficient (NTC) is used as the feedback to realize the temperature control. Finally, the human-computer interaction system of the laser is designed, which realizes the real-time monitoring, judgment and storage of the internal state of the laser. In order to verify the effectiveness of the control system, a pump is selected for testing. The experimental results show that the pump drive module can work continuously and stably, and the control system can monitor the internal state of the laser in real time, which is safe and reliable. The laser output center wavelength after frequency doubling is 514.98 nm, the power can reach 170 W, and the optical power stability is 0.07 dB. All devices and equipment for the control system are made in China, meeting the system design requirements of 515-nm high-power laser. 2022 Editorial Office of Chinese Optics. All rights reserved.
DOI	10.37188/CO.2022-0133
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收录类别	ei
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/66491
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Q.-R. Dong,Z.-D. Zhang,W.-G. Wang,et al. Control system design of 515-nm high power laser[J]. Chinese Optics,2022,15(5):1013-1018.
APA	Q.-R. Dong,Z.-D. Zhang,W.-G. Wang,&T. Chen and F. Chen.(2022).Control system design of 515-nm high power laser.Chinese Optics,15(5),1013-1018.
MLA	Q.-R. Dong,et al."Control system design of 515-nm high power laser".Chinese Optics 15.5(2022):1013-1018.

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