Gain saturation in cw 12-. mu. m NH/sub 3/ Raman lasers

Journal Article · Tue Jan 01 04:00:00 EST 1985 · Appl. Opt.; (United States)

DOI:https://doi.org/10.1364/AO.24.000013· OSTI ID:6101720

Rolland, C; Garside, B K; Reid, J

An oscillator-amplifier technique is used to study gain saturation in cw 12.08-..mu..m waveguide NH/sub 3/ lasers. Population transfer in the NH/sub 3/ ground state, rather than pump depletion, is shown to be the dominant mechanism for reduction of the Raman gain in this laser system. A model based on the density matrix formalism accounts for the main features of the experimental results and allows an effective rate to be determined for rotational relaxation in the ground state of NH/sub 3/.

• Research Organization: McMaster University, Hamilton, Ontario L8S 4M1
• OSTI ID: 6101720
• Journal Information: Appl. Opt.; (United States), Journal Name: Appl. Opt.; (United States) Journal Issue: 1 Vol. 24:1; ISSN APOPA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
AMMONIA
AMPLIFICATION
ELECTROMAGNETIC RADIATION
EMISSION
ENERGY LEVELS
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
GAIN
GAS LASERS
GROUND STATES
HYDRIDES
HYDROGEN COMPOUNDS
INFRARED RADIATION
LASERS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
OPTICAL PUMPING
POPULATION INVERSION
PUMPING
RADIATIONS
RAMAN EFFECT
RELAXATION
ROTATIONAL STATES
SATURATION
STIMULATED EMISSION