射频激励扩散型冷却板条波导千瓦CO激光器

辛建国; 张旺; 焦文涛

光学学报, 2000, 20 (5): 714, 网络出版: 2006-08-09

射频激励扩散型冷却板条波导千瓦CO激光器

RF Excited Diffusively Cooled Kilowatts Carbon Monoxide Slab Waveguide Laser

论文大纲

辛建国张旺焦文涛

作者单位

北京理工大学光电工程系,北京 100081

板条波导激光器激光谐振腔射频激励。 slab waveguide laser laser resonator RF excitation.

摘要

报道了一种射频激励扩散型冷却千瓦CO板条波导激光器。其上下两电极均采用液氮冷却,射频气体放电激励频率为90 MHz,板条状波导增益区为178 mm(宽)×2 mm(高)×500 mm(长)。气体是配比为24:71:4:1的CO、He、Xe、O2混合气。所用的激光谐振腔由一个离轴虚焦非稳腔和一个平面后反馈镜构成。实验中,获得了1020瓦的CO激光功率输出。

Abstract

A RF excited diffusively cooled carbon monoxide kilowatts laser is reported.In this laser,the top electrode was cooled with the tap water and the bottom electrode was cooled with the liquid nitrogen to maintain the slab waveguide gas discharge region at a low temperature.In the experiments,a slab waveguide region was excited by a RF transverse gas discharge at a frequency of 90 MHz,a new type of optical resonator consisting of a conventional unstable resonator and a flat feedback mirror was employed.The maximum laser power output of over 1 kilowatts was obtained with a gas composition of P(CO):P(He):P(Xe):P(O2) at a ratio of 24:71:4:1.

参考文献

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辛建国, 张旺, 焦文涛. 射频激励扩散型冷却板条波导千瓦CO激光器[J]. 光学学报, 2000, 20(5): 714. 辛建国, 张旺, 焦文涛. RF Excited Diffusively Cooled Kilowatts Carbon Monoxide Slab Waveguide Laser[J]. Acta Optica Sinica, 2000, 20(5): 714.

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