Operating characteristics of a frequency-stabilized ring laser with a methane cell

Journal Article · Tue May 01 04:00:00 EDT 1979 · Sov. J. Quant. Electron. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1070/QE1979v009n05ABEH009022· OSTI ID:6006745

Andronova, I A; Mamaev, Y A; Markelov, N A

An experimental and theoretical investigation is reported of the effect of the modulation frequency of the resonator perimeter on the operation of an He--Ne--CH/sub 4/ ring laser at lambda=3.39 ..mu... It is shown that at high modulation frequencies (F>5--7 kHz), the amplitude of the first intensity harmonic I/sub ..cap omega../ at the center of the methane ''reflecting'' power peak does not vanish in the general case and depends strongly on the pressure in the active medium. At a pressure corresponding to coincidence of the centers of the amplification and absorption lines, I/sub ..cap omega../ has a minimum at the peak extremum. This effect yields a simple and accurate method of matching the line centers of the active and absorbing media. A dependence of the stabilized laser frequency on the phase of the wave back reflections is also reported.

• Research Organization: Institute of Applied Physics, Academy of Sciences of the USSR, Gorki
• OSTI ID: 6006745
• Journal Information: Sov. J. Quant. Electron. (Engl. Transl.); (United States), Journal Name: Sov. J. Quant. Electron. (Engl. Transl.); (United States) Vol. 9:5; ISSN SJQEA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ABSORPTION
ALKANES
CRYOGENIC FLUIDS
FLUIDS
FREQUENCY CONTROL
GAS LASERS
HELIUM-NEON LASERS
HYDROCARBONS
LASERS
METHANE
ORGANIC COMPOUNDS
RINGS
STABILIZATION