Waveguide CO/sub 2//OsO/sub 4/ laser with a frequency stability of 10/sup -13/

Journal Article · Mon Oct 31 23:00:00 EST 1983 · Sov. J. Quant. Electron. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1070/QE1983v013n11ABEH004961· OSTI ID:6898023

Bazarov, E N; Gerasimov, G A; Gubin, V P; Sazonov, A I; Starostin, N I; Fomin, V V

A high-pressure waveguide CO/sub 2/ laser was stabilized using the resonance frequency of saturated absorption due to the A/sup 2//sub 2/P(46) transition in the ..nu../sub 3/ band of /sup 192/OsO/sub 4/ (28.46 THz). The laser had a preliminary frequency stabilization system based on a transmission resonance of an external Fabry--Perot interferometer, narrowing the emission spectrum to 1 kHz. An external absorption cell was used: it contained OsO/sub 4/ vapor at a reduced pressure. The frequency instability was measured by comparison with the frequency of a low-pressure CO/sub 2//OsO/sub 4/ laser stabilized using a resonance located at the center of the CO/sub 2/ P(14) line. The relative instability of the frequencies of the lasers was 10/sup -13/(tau/sup -1/+2tau/sup 0/) for values of tau from 1 msec to 400 sec. The long-term stability (flicker limit) of approx.10/sup -13/ was probably governed by pulling effects arising, in particular, from parasitic reflections in the optical system.

• Research Organization: Institute of Radio Engineering and Electronics, Academy of Sciences of the USSR, Moscow
• OSTI ID: 6898023
• Journal Information: Sov. J. Quant. Electron. (Engl. Transl.); (United States), Journal Name: Sov. J. Quant. Electron. (Engl. Transl.); (United States) Vol. 13:11; ISSN SJQEA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ABSORPTION
CARBON DIOXIDE LASERS
CHALCOGENIDES
EMISSION SPECTRA
ENERGY-LEVEL TRANSITIONS
FREQUENCY MEASUREMENT
GAS LASERS
HIGH PRESSURE
LASERS
OSMIUM COMPOUNDS
OSMIUM OXIDES
OXIDES
OXYGEN COMPOUNDS
SPECTRA
STABILITY
TRANSITION ELEMENT COMPOUNDS
WAVEGUIDES