Title :
Misalignment effects in a CO2 waveguide laser
Author :
Hill, Christopher A. ; Colley, Alan D.
Author_Institution :
R. Signals & Radar Establ., Malvern, UK
fDate :
2/1/1990 12:00:00 AM
Abstract :
A study is made of a CO2 waveguide resonator with a square bore and plane mirrors focusing on the theoretical and experimental effects of changing the mirror-guide distance and of tilting the mirror. It is found that it can be misleading to neglect typical mirror-guide distances z≃2-4 mm in favor of extreme-near-field (case I) simplifications. The results from a small (≃20 cm×1.3 mm×1.3 mm) RF-excited laser agree well with predictions (from an improved multimode matrix model) of output power, line-tuning behaviour, and CW (continuous wave) beat frequency
Keywords :
carbon compounds; gas lasers; laser accessories; laser modes; matrix algebra; mirrors; optical waveguides; 1.3 mm; 2 to 4 mm; 20 cm; CO2 waveguide laser; CW beat frequency; RF-excited laser; extreme-near-field; line-tuning behaviour; mirror tilting; mirror-guide distance; misalignment effects; multimode matrix model; output power; plane mirrors; square bore; waveguide resonator; Boring; Frequency; Laser modes; Mirrors; Planar waveguides; Power generation; Power lasers; Predictive models; Transmission line matrix methods; Waveguide theory;
Journal_Title :
Quantum Electronics, IEEE Journal of
