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
Link To Document :
