放电激励重复频率HF激光器稳定输出实验研究

唐影; 黄珂; 易爱平; 朱峰; 马连英; 于力; 黄欣; 沈炎龙; 刘晶儒; 叶锡生

doi:doi:10.3788/cjl201239.0202004

中国激光, 2012, 39 (2): 0202004, 网络出版: 2012-01-19

放电激励重复频率HF激光器稳定输出实验研究

Experimental Study on Stable Output of Discharge-Pumped Repetition Rate HF Laser

论文大纲

唐影 ^*黄珂易爱平朱峰马连英于力黄欣沈炎龙刘晶儒叶锡生

作者单位

西北核技术研究所激光与物质相互作用国家重点实验室，陕西西安 710024

激光器放电激励重复频率稳定性 lasers discharge-pumped repetition rate stability

摘要

在放电激励重复频率气体激光研究中，激光器重复频率运行能量稳定输出是提高其输出平均功率及其实用化的基础。利用实验室已建立的单脉冲输出能量焦耳级的放电激励重复频率脉冲HF激光装置，通过调节气体介质循环速率及优化实验条件，开展激光器重复频率运行稳定输出实验研究，获得激光器重复频率运行时能量稳定输出的最佳工作条件。研究结果表明：随着运行频率的上升，激光输出能量衰减较快；增大气体介质循环速率有利于改善放电稳定性，提高激光器重复频率运行时输出能量稳定性。当混合气体工作介质以3.5 m/s的流速循环时，激光器可实现1~50 Hz重复频率激光输出，在重复频率50 Hz运行时稳定输出能量约130 mJ，能量波动约5%。

Abstract

In the investigation of gas laser pumped by electric discharge, the stability of laser output energy in repetition rate mode is the foundation of increasing its output average power and its application in practice. By adjusting the velocity of gas flow and optimizing the operating condition of laser, the output energy stability of laser in repetition rate mode is studied experimentally with joule level discharged-pumped pulsed HF laser, and the optimal operating condition of laser is obtained. The experimental results show that laser output energy decreases quickly with the repetition rate increasing; and increasing gas circulating velocity is beneficial to improve the discharge stability and the stability of laser output energy in repetition rate mode. When the gas mixture circulates at 3.5 m/s flowing velocity, laser can operate at repetition rate from 1 Hz to 50 Hz and operating stability keeps well. Under these conditions, each laser pulse of 130 mJ is obtained stably, and the fluctuation of output energy is about 5%.

参考文献

[1] V. V. Apollonov, K. N. Firsov, S. Y. Kazantsev et al.. High-power pulse and pulse-periodic nonchain HF(DF) lasers［C］. SPIE, 2002, 4747: 31～43

[2] B. Lacour, C. Gagnol, P. Prigent et al.. High average power HF/DF laser［C］. SPIE, 1998, 3574: 334～340

[3] H. Brent, M. Mabru, F. Voignier. High energy high average power pulsed HF/DF chemical laser［C］. SPIE, 1995, 2502: 388～392

[4] M. R. Harris, A. V. Morris, E. K. Gorton. Closed-cycle 1 kHz pulse repetition frequency HF(DF) laser［C］. SPIE, 1998, 3268: 247～251

[5] F. G. Goryunov, K. V. Gurkov, M. I. Lomaev et al.. Pulsed chemical electric discharge SF6-H2 laser［J］. Quantum Electron., 1994, 24(12): 1064～1066

[6] V. F. Taraskeo, E. H. Baksht, M. I. Lomaev et al.. Efficient non-chain chemical HF lasers initiated by e-beam and self-sustained discharge［C］. SPIE, 1998, 3268: 228～235

[7] 柯长军, 张阔海, 孙科等. 重复频率放电引发的脉冲HF(DF)激光器［J］. 红外与激光工程, 2007, 36(增刊): 36～38

Ke Changjun, Zhang Kuohai, Sun Ke et al.. A periodically pulsed HF/DF gas discharge laser［J］. Infrared and Laser Engineering, 2007, 36(suppl.): 36～38

[8] 柯常军, 万重怡. 放电引发非链式脉冲HF/DF激光器的研究进展［J］. 激光与红外, 2003, 33(4): 304～305

Ke Changjun, Wan Chongyi. Status and prospect of electric-discharge non-chain pulsed HF laser［J］. Laser & Infrared, 2003, 33(4): 304～305

[9] 黄珂, 易爱平, 于力等. 电激励脉冲HF激光SF6/C2H6工作气体的放电特性［J］. 强激光与粒子束, 2010, 22(10): 2353～2357

Huang Ke, Yi Aiping, Yu Li et al.. Discharge characteristics of SF6/C2H6 working mixture in electric-initiated pulsed HF laser［J］. High Power Laser and Particle Beams, 2010, 22(10): 2353～2357

[10] 唐影, 易爱平, 朱峰等. 用于HF激光器的气体火花开关特性研究［J］. 激光与红外, 2010, 40(8): 834～838

Tang Ying, Yi Aiping, Zhu Feng et al.. Study on characteristics of spark gap switch for HF laser［J］. Laser & Infrared, 2010, 40(8): 834～838

[11] 朱峰. 非链式HF激光器气体体放电和输出能量影响因素实验研究［D］. 西安: 西北核技术研究所, 2008. 19～24

Zhu Feng. Experimental Investigation on Influence Factors of Gas Discharge and Output Energy of Non-Chain HF Laser［D］. Xi′an: Northwest Institute of Nuclear Technology, 2008. 19～24

唐影, 黄珂, 易爱平, 朱峰, 马连英, 于力, 黄欣, 沈炎龙, 刘晶儒, 叶锡生. 放电激励重复频率HF激光器稳定输出实验研究[J]. 中国激光, 2012, 39(2): 0202004. Tang Ying, Huang Ke, Yi Aiping, Zhu Feng, Ma Lianying, Yu Li, Huang Xin, Shen Yanlong, Liu Jingru, Ye Xisheng. Experimental Study on Stable Output of Discharge-Pumped Repetition Rate HF Laser[J]. Chinese Journal of Lasers, 2012, 39(2): 0202004.

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