Laser power and gain measurements on the sequence bands of CO/sub 2/

Journal Article · Fri Jul 01 04:00:00 EDT 1977 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.324122· OSTI ID:7311186

Reid, J; Siemsen, K

An experimental technique is reported which converts a conventional cw CO/sub 2/ laser into one which lases on a series of new laser bands. These bands are identified as the (00/sup 0/2--(10/sup 0/1,02/sup 0/1)/sub I,/) and the (00/sup 0/3--(10/sup 0/2,02/sup 0/2)/sub I,/) sequence bands of CO/sub 2/, and lie in the 10-..mu..m wavelength region. The technique involves placing a cell containing hot CO/sub 2/ in the laser cavity to suppress the regular 00/sup 0/1 bands. We report the first detailed power and gain measurements on the new laser bands. More than 80 laser lines have been observed in the 00/sup 0/2 bands, with cw output powers as high as 10 W. Gain measurements are reported for a variety of discharge conditions, and gain coefficients greater than 0.3%/cm have been obtained. We have also observed several laser lines in the 00/sup 0/3 sequence band of CO/sub 2/. Possible applications of the new laser lines are discussed, particularly their use in determining vibrational temperatures in CO/sub 2/ discharges.

• Research Organization: National Research Council of Canada, Ottawa, Ontario K1A OR6, Canada
• OSTI ID: 7311186
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 48:7; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
CARBON DIOXIDE LASERS
ELECTRIC DISCHARGES
EMISSION SPECTRA
ENERGY-LEVEL TRANSITIONS
FREQUENCY CONTROL
FREQUENCY CONVERTERS
FREQUENCY SELECTION
GAIN
GAS LASERS
LASER CAVITIES
LASERS
MODULATION
POWER
SPECTRA
SPECTROSCOPY