DocumentCode
1108327
Title
A compact wide-aperture single-mode TE-CO2 laser with a low chirp rate
Author
Lavigne, Pierre ; Parent, André ; Pascale, Danny ; McCarthy, Nathalie
Author_Institution
INRS-Energie, Varennes, P.Q., JOL 2PO, Canada
Volume
22
Issue
12
fYear
1986
fDate
12/1/1986 12:00:00 AM
Firstpage
2200
Lastpage
2203
Abstract
Single mode operation of a TE-CO2 laser was obtained using a 
cm gain module in a Cassegrain resonator with a Gaussian reflectivity convex mirror to produce a fundamental mode of large cross sectional area, and reducing the pressure to 375 torr in a 50 cm long cavity to limit the oscillation to a single longitudinal mode. The 70 ns gain switched pulse (FWHM) had an energy of 175 mJ, a peak power of 2.0 MW, a diffraction limited far-field, and a frequency chirp rate lower than 60 kHz/μs2.
cm gain module in a Cassegrain resonator with a Gaussian reflectivity convex mirror to produce a fundamental mode of large cross sectional area, and reducing the pressure to 375 torr in a 50 cm long cavity to limit the oscillation to a single longitudinal mode. The 70 ns gain switched pulse (FWHM) had an energy of 175 mJ, a peak power of 2.0 MW, a diffraction limited far-field, and a frequency chirp rate lower than 60 kHz/μs2.Keywords
Carbon dioxide lasers; Chirp modulation; Laser modes; Apertures; Chirp; Gas lasers; Germanium; Laser modes; Mirrors; Optical pulses; Optical resonators; Pulse measurements; Reflectivity;
fLanguage
English
Journal_Title
Quantum Electronics, IEEE Journal of
Publisher
ieee
ISSN
0018-9197
Type
jour
DOI
10.1109/JQE.1986.1072942
Filename
1072942
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