Analysis of the characteristics of a pulsed chemical DF--CO/sub 2/ laser under lasing and amplification conditions

Journal Article · Fri Mar 01 04:00:00 EST 1985 · Sov. J. Quant. Electron. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1070/QE1985v015n03ABEH006305· OSTI ID:5687895

Bravyi, B G; Vasil'ev, G K; Kir'yanov, V I

Experimental and calculated data are used in an analysis of the characteristics of a pulsed chemical DF--CO/sub 2/ laser under free-running and amplification regimes. A deviation of the distribution of the populations of the vibrational states of the CO/sub 2/ molecule from the Boltzmann law was observed in the course of amplification of a saturating 150-nsec pulse. The role of a ''hot'' R23 (01/sup 1/1--11/sup 1/0) transition and the influence of rotational relaxation on the kinetics of lasing of individual vibrational--rotational lines, on the output radiation pulse profile, and on the output energy were considered. The calculated and experimental values of the unsaturated gain and of the output energy in the free-running regime were in good agreement when the degree of initiation (dissociation) was far from the lasing threshold.

• Research Organization: Institute of Chemical Physics, Academy of Sciences of the USSR, Chernogolovka, Moscow Province
• OSTI ID: 5687895
• Journal Information: Sov. J. Quant. Electron. (Engl. Transl.); (United States), Journal Name: Sov. J. Quant. Electron. (Engl. Transl.); (United States) Vol. 15:3; ISSN SJQEA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL LASERS
ENERGY LEVELS
EXCITED STATES
HYDROFLUORIC ACID
HYDROGEN COMPOUNDS
INORGANIC ACIDS
KINETICS
LASERS
OXIDES
OXYGEN COMPOUNDS
PULSES
RELAXATION
ROTATIONAL STATES
VIBRATIONAL STATES