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Proceedings Paper

Experimental investigation of power output characteristics of RF excited all metal slab waveguide CO2 lasers
Author(s): Shuna Yao; Ning Su; Zhiming Li; Jianguo Xin
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Paper Abstract

In this paper, we have presented a new type of RF excited diffusively cooled all-metal slab waveguide CO2 laser. In this laser structure, the four side walls of the slab waveguide are all made of aluminum alloy instead of ceramic and metal sandwich waveguide structure in the past technique. In our approach, a low cost of slab waveguide CO2 laser can be achieved. By using the technique in this paper, over 100 watts of laser power has been achieved from a laser head with dimension of 150mm height, 150mm width and 450mm length, which has the slab waveguide gas discharge region of 2mm height, 20mm width and 386mm length. The electro-optic conversion efficiency is over 12%. In our experiment, a gas mixture of CO2: N2: He: Xe =1: 1: 3: 0.26 has been employed, and the gas pressure is in the range from 6.5 Kpa to 13.5 Kpa. The frequency of the RF power is 91.5 MHz, and the RF power is in the range from 500watts to 1000watts.

Paper Details

Date Published: 26 January 2005
PDF: 7 pages
Proc. SPIE 5627, High-Power Lasers and Applications III, (26 January 2005); doi: 10.1117/12.575692
Show Author Affiliations
Shuna Yao, Beijing Institute of Technology (China)
Ning Su, Beijing Institute of Technology (China)
Zhiming Li, Beijing Institute of Technology (China)
Jianguo Xin, Beijing Institute of Technology (China)

Published in SPIE Proceedings Vol. 5627:
High-Power Lasers and Applications III
Dianyuan Fan; Ken-ichi Ueda; Jongmin Lee, Editor(s)

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