MOPA光纤激光器高效程控驱动电源的研究

量子电子学报

MOPA光纤激光器高效程控驱动电源的研究

钱娟1,2，贾先德1，董伟伟1

1 中国科学院安徽光学精密机械研究所，安徽光子器件与材料重点实验室，安徽合肥 230031； 2中国科学技术大学，安徽合肥 230026

出版日期:2019-05-28 发布日期:2019-05-14
通讯作者: 贾先德（1960-），湖北荆门人，副研究员，硕士生导师，主要从事光电子和激光加工应用技术方面的研究与开发。 E-mail:496004294@qq.com
作者简介:钱娟（1992-），安徽安庆人，研究生，主要从事脉冲光纤激光器应用方面的研究。E-mail: qianjuan@mail.ustc.edu.cn

High efficiency programmable driving power supply of MOPA fiber laser

QIAN Juan1,2, DONG Weiwei1,JIA Xiande2

1 AnHui Provincial Key Laboratory of Photonic Devices and Material, Anhui Institude of Optics and Fine Mechanics, Chinese Academy of Sciences，Hefei 230031, China; 2 University of Sciences and Technology of China,Hefei 230026, China

Published:2019-05-28 Online:2019-05-14

摘要/Abstract

摘要： 为了降低MOPA（master oscillator power amplifier）光纤激光器驱动系统的热耗散、提高其电光效率和单脉冲输出能量，提出了一种风冷恒温运行的技术和智能程控电源的方法。基于驱动电源的总体设计目标，从制冷方式、制冷器件的选择等方面均进行了研究，实现了对整个激光器系统温度的精确控制，系统运行温度误差为±0.5 ℃。研究了放大抽运源激光输出能量、输入电压随输入电流的关系，实现了抽运源恒流驱动电流大于 10 A，脉冲驱动电流大于20 A的设计要求。实验结果对MOPA光纤激光器的优化设计具有重要的参考作用。

关键词: master oscillator power amplifier, 驱动电源, 高效, 程控

Abstract: In order to reduce the thermal dissipation of master oscillator power amplifier fiber laser drive system, improve its electro-optical efficiency and output energy of single pulse, a method of air-cooled constant temperature operation and intelligent program-controlled power supply is proposed. Based on the overall design goal of the drive power, detailed research is done from aspects of the refrigeration mode and selection of the refrigerating device. The temperature control of whole laser system is realized, and temperature error of the system is ±0.5 ℃. The relationship between amplifier pump output energy, input voltage and input current is investigated. The design requirement of constant current driving current of pump source is larger than 10 A, and the driving current of pulse is larger than 20 A. Experimental results have a significant reference value.

Key words: master oscillator power amplifier, driver power, high efficiency, programme control

钱娟1,2，贾先德1，董伟伟1. MOPA光纤激光器高效程控驱动电源的研究[J]. 量子电子学报.

QIAN Juan1,2, DONG Weiwei1,JIA Xiande2. High efficiency programmable driving power supply of MOPA fiber laser[J]. Chinese Journal of Quantum Electronics.

参考文献

[1] Chen Miaohai. Research progress of high-power fiber lasers[J]. Laser and Infrared(激光与红外), 2007, 37(7): 589-592(in Chinese). [2] Yokoyama Y, Kan T, Kageyama T, et al. 1064-nm DFB laser diode modules applicable to seeder for pulse-on-demand fiber laser systems[J]. Optical Fiber Technology, 2014, 20(6):714-724. [3] Cui Z, Nie J, Chen W, et al. Design and implementation of programmable semiconductor pulse seed laser used in MOPA[J]. Science Technology and Engineering, 2012, 7987(1):180-181. [4] Hendow S T, Shakir S A, Sousa J M. MOPA fiber laser with controlled pulse width and peak power for optimizing micromachining applications[C]. Proceedings of SPIE， 2010, 7584: 7584-7542. [5] Lin Xiaohan, Su Guobin, Liu Jiansheng, et al. Research on large current and narrow pulse driving circuit of semiconductor laser [J]. Piezoelectric and Acoustooptic(压电与声光), 2000,22 (6): 414-417（in Chinese）. [6] Qiao H C, Zhao J B, Hao Y. Study and development of high peak power short pulse Nd:YAG laser for peening applications[J]. Science China Technological Sciences, 2015, 58(7): 1154-1161. [7] Zhang X, Diao W, Liu Y, et al. Single-frequency polarized eye-safe all-fiber laser with peak power over kilowatt[J]. Applied Physics B, 2014, 115(1):123-127. [8] Li Jianfeng, Chen Hao, Liu Yongzhi, et al. Optimization design of low repetition frequency high energy pulse multistage fiber MOPA system [J]. Infrared and Laser Engineering(红外与激光工程), 2010, 39 (1): 97-102（in Chinese）. [9] Gong Weijia. Digital DC/DC Converter Based on BUCK Circuit[Doctoral dissertation]. Sichuan: University of Electronic Science and technology of China,2013: 17-25. [10] Liu Songbin, Zhao Yu, Wang Wei, et al. TD LAS detection system laser drive circuit [J]. Chemical Automation and Instrumentation(化工自动化及仪表), 2017, 44 (3): 279-284（in Chinese）. [11] Lu Jie, Wu Yuguang. Design of a current mode DC/DC step-down PWM controller[J]. Modern Electronic Technology（现代电子技术）, 2008, 31 (18): 4-7（in Chinese）.