Efficient tunable LiF:F/sub 2//sup -/ crystal lasers

Journal Article · Sun Aug 01 04:00:00 EDT 1982 · Sov. J. Quant. Electron. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1070/QE1982v012n08ABEH005821· OSTI ID:6875373

Basiev, T T; Voron'ko, Y K; Mirov, S B; Osiko, V V; Prokhorov, A M; Soskin, M S; Taranenko, V B

Optimization of the technology of preparation of active elements made of LiF crystals containing F/sup -//sub 2/ color centers ensured high values of the parameters of wide-band generation of light by the F/sup -//sub 2/ color centers in a nonselective resonator pumped with YAG:Nd/sup 3 +/ laser radiation (lambda/sub p/ = 1.064 ..mu..). The efficiency measured relative to the incident pump energy was 25%, the efficiency of energy absorption was 32%, and the differential efficiency was 50%. The lasing band had a maximum at lambda = 1.17 ..mu.. and the half-width was ..delta..lambda>1000 cm/sup -1/. Stimulated emission of radiation by the F/sup -//sub 2/ centers was observed when the pump laser was operated under free-running conditions (smooth pulses) and the efficiency measured relative to the incident pump energy was then 0.5%. An efficient LiF:F/sup -//sub 2/ laser with a spectrally narrow (<0.05 nm) and continuously tunable (within the 1.09--1.23 ..mu.. range) emission line was constructed. The efficiency at the maximum of the tuning curve (lambda = 1.17 ..mu..) was 10% measured relative to the incident energy and 12% measured relative to the absorbed energy; the differential efficiency was 23%. The operating temperature of the active elements of the laser was the room value and the repetition frequency of the output pulses was up to 100 Hz.

• Research Organization: P. N. Lebedev Physics Institute, Academy of Sciences of the USSR, Moscow
• OSTI ID: 6875373
• Journal Information: Sov. J. Quant. Electron. (Engl. Transl.); (United States), Journal Name: Sov. J. Quant. Electron. (Engl. Transl.); (United States) Journal Issue: 8 Vol. 12:8; ISSN SJQEA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ABSORPTION
ALKALI METAL COMPOUNDS
COLOR CENTERS
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
EFFICIENCY
ELECTROMAGNETIC RADIATION
EMISSION
ENERGY-LEVEL TRANSITIONS
F CENTERS
FABRICATION
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
INFRARED RADIATION
LASER RADIATION
LASERS
LINE WIDTHS
LITHIUM COMPOUNDS
LITHIUM FLUORIDES
LITHIUM HALIDES
MEDIUM TEMPERATURE
NEODYMIUM LASERS
OPERATION
OPTICAL PUMPING
OPTIMIZATION
POINT DEFECTS
PUMPING
RADIATIONS
SOLID STATE LASERS
STIMULATED EMISSION
TUNING
VACANCIES