Mini high-repetition frequency sealed-off TEA CO2 laser

Dong Jiang; Tianjin Hou; Chongzhong Zheng; Ge Lan; Dingfu Zhou; Xingbang Wang; Gang Zhao; Kunhong Qu; Jianxiu Liu; Qianhua Qu

doi:10.1117/12.253296

30 September 1996 Mini-high-repetition frequency sealed-off TEA CO₂ laser

Dong Jiang, Tianjin Hou, Chongzhong Zheng, Ge Lan, Dingfu Zhou, Xingbang Wang, Gang Zhao, Kunhong Qu, Jianxiu Liu, Qianhua Qu

Author Affiliations +

Proceedings Volume 2889, High-Power Lasers: Solid State, Gas, Excimer, and Other Advanced Lasers; (1996) https://doi.org/10.1117/12.253296
Event: Photonics China '96, 1996, Beijing, China

Abstract

This paper gives some results and curves from digital calculating about equations of TEA CO₂ laser. 3D Chang's electrode was precisely calculated and manufactured to gain well-distributed electric field in discharge space, which is necessary for TEA CO₂ laser. A pre-ionization technique used in this laser was described. A gas circulating system was designed to let the laser operate at high repetition frequency (HRF). It is a key technique to extend the operating life of mini high repetition frequency sealed-off TEA CO₂ laser. So, an efficient low temperature catalyst is used in this laser. Mini HRF sealed-off TEA CO₂ laser can be applied for the military such as rangefinder, tracing, designating, etc. The specifications of this laser are following: mode is TEM₀₀, divergence (whole angle) in far field is less than 4 mrad, pulse energy of TEM₀₀ mode is 87.8 mJ, FWHF is 36.5 ns, peak power of TEM₀₀ mode is more than 0.9 MW, operating frequency is 130 Hz (the maximum frequency is up to 255 Hz and it can operate continuously at 50 Hz), it's operating life is more than 1 X 10⁷ shots.

Citation Download Citation

Dong Jiang, Tianjin Hou, Chongzhong Zheng, Ge Lan, Dingfu Zhou, Xingbang Wang, Gang Zhao, Kunhong Qu, Jianxiu Liu, and Qianhua Qu "Mini-high-repetition frequency sealed-off TEA CO₂ laser", Proc. SPIE 2889, High-Power Lasers: Solid State, Gas, Excimer, and Other Advanced Lasers, (30 September 1996); https://doi.org/10.1117/12.253296

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KEYWORDS

Carbon dioxide lasers

Electrodes

Gas lasers

Gases

Carbon monoxide

Curium

Pulsed laser operation

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