Gain measurements on the sequence bands in a TEA-CO/sub 2/ amplifier

Journal Article · Sat Jul 01 00:00:00 EDT 1978 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.325413· OSTI ID:6938328

Lavigne, P; Lachambre, J; Otis, G

Small-signal gains as high as 1.5% cm/sup -/1 have been measured in a TEA-CO/sub 2/ amplifier on the 00/sup 0/2- (10/sup 0/1, 02/sup 0/1)/sub I,II/ sequence bands. The ratio of the gain coefficient of the sequence bands over the gain coefficient of the regular bands has been observed to be independent of either the CO/sub 2/ or He proportion in the gas mixture. It has also been found to increase with the electrical energy dumped into the active medium and to reach a value of 1/3 at an excitation density of 140 J/l. Gain on the sequence bands has been found to be responsible for the anomalously high gain coefficient that is measured at low J values of the R branch of the regular 9.4-..mu..m transition in TEA amplifiers.

• Research Organization: Defence Research Establishment, Valcartier, Quebec, G0A 1R0, Canada
• OSTI ID: 6938328
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 49:7; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
AMPLIFIERS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON DIOXIDE LASERS
CARBON OXIDES
CHALCOGENIDES
CONVERSION
CRYOGENIC FLUIDS
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
ELEMENTS
ENERGY CONVERSION
ENERGY-LEVEL TRANSITIONS
EXCITATION
FAR INFRARED RADIATION
FLUIDS
FREQUENCY SELECTION
GAIN
GAS LASERS
HELIUM
INFRARED RADIATION
LASER CAVITIES
LASERS
NITROGEN
NONMETALS
OXIDES
OXYGEN COMPOUNDS
RADIATIONS
RARE GASES