Lasing characteristics of the Ar - Xe and He - Ar - Xe mixtures pumped by fission fragments
- State Scientific Center of the Russian Federation 'A.I. Leipunski Institute for Physics and Power Engineering', Obninsk, Kaluga Region (Russian Federation)
The lasing characteristics of the Ar - Xe and He - Ar - Xe mixtures emitting at the transitions of the Xe atom at 1.73 and 2.026 mkm upon pumping by fission fragments in the BARS-6 pulsed reactor are studied. We describe an experimental setup and methods for measuring laser beam parameters and characteristics of the active medium of the nuclear-pumped laser in the free-running and master oscillator - amplifier regimes. The dependences of the laser pulse energy on the resonator parameters and the composition and pressure of the working mixture are studied in the free-running regime. A method of modulating the input signal of a single-pass amplifier is proposed for obtaining lasing characteristics of active mixtures. The lasing characteristics of the Ar - Xe and He - Ar - Xe mixtures (the unsaturated gain, saturation intensity, conversion efficiency, etc.) are determined from experiments in the amplifier - oscillator regime and compared with the results reported in other papers. (lasers)
- OSTI ID:
- 21471067
- Journal Information:
- Quantum Electronics (Woodbury, N.Y.), Journal Name: Quantum Electronics (Woodbury, N.Y.) Journal Issue: 1 Vol. 40; ISSN 1063-7818
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
BEAMS
EFFICIENCY
ELECTROMAGNETIC PULSES
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
ELEMENTS
EQUIPMENT
FISSION FRAGMENTS
FLUIDS
GAS LASERS
GASES
HELIUM
LASERS
NONMETALS
NUCLEAR FRAGMENTS
NUCLEAR PUMPING
OSCILLATORS
PHOTON BEAMS
PULSED REACTORS
PULSES
PUMPING
RADIATIONS
RARE GASES
REACTORS
RESONATORS
XENON