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Comparisons of waveguide folding geometries in a CO/sub 2/ z-fold laser

Journal Article · · Appl. Opt.; (United States)
DOI:https://doi.org/10.1364/AO.28.000935· OSTI ID:6415069
In this paper we compare three types of optical arrangement used for folding in a z-fold CO/sub 2/ waveguide laser excited by a transverse rf discharge. In particular, we present measured output power as a function of discharge conditions for folded resonators with plane mirrors, curved mirrors, and partial waveguiding. To date the laser has produced a maximum of 53.4 W from 115 cm of discharge, i.e., 0.46 W/cm. The folding losses predicted by scalar diffraction theory agree reasonably well with those derived from a fit between the experimental data and a Rigrod analysis.
Research Organization:
Heriot Watt University, Physics Department, Optoelectronics and Laser Engineering, Riccarton, Edinburgh EH14 4AS, U.K.
OSTI ID:
6415069
Journal Information:
Appl. Opt.; (United States), Journal Name: Appl. Opt.; (United States) Vol. 28:5; ISSN APOPA
Country of Publication:
United States
Language:
English

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