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http://dx.doi.org/10.3807/KJOP.2003.14.4.406

The radio frequency excited slab waveguide CO2 laser  

김규식 (목원대학교 전자공학과)
이영우 (목원대학교 전자공학과)
우삼용 (한국표준과학연구원, 압력실)
최종운 (호남대학교 광전자공학과)
Publication Information
Korean Journal of Optics and Photonics / v.14, no.4, 2003 , pp. 406-412 More about this Journal
Abstract
We have developed a radio frequency excited slab waveguide $CO_2$ laser. The dimension of active volume is 2${\times}$40${\times}$400 mm. One concave and one convex mirror are used to make the unstable resonator of the positive branch. The radio frequency is 123 MHz and RF input power is varied from 100 to 900 W. The laser gas is set to a pressure of 10∼60 torr and the mixing ratio is $CO_2$:$N_2$:He=1:1:3. The laser output power of 70.7 W was obtained which corresponds to laser power to RF power conversion efficiency of 9.2%.
Keywords
slab waveguide; RF excited; $CO_2$ laser; unstable resonator;
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