Calculation of the lens frequency shift of a He--Ne//sup 127/I/sub 2/ laser (lambda = 633 nm) stabilized by saturated absorption

Journal Article · Sun Mar 01 04:00:00 EST 1987 · Opt. Spectrosc. (Engl. Transl.); (United States)

OSTI ID:5415737

Mironov, A V

Curves of the shift of the mean frequency of a laser stabilized by saturated absorption vs the amplitude of frequency deviation, lasing power, and iodine vapor pressure coupled with the lens action of the absorbing iodine medium are calculated with the framework of the semiclassical theory of the laser with a nonlinear-absorbing cell (approximation of the rate equations). Comparison with known experimental data leads to the conclusion that in actual He--Ne//sup 127/I/sub 2/ lasers (lambda = 633 nm), frequency shift and asymmetry of the saturated absorption spike are due mainly not to the lens effect, but most likely to collisions in iodine vapor. The possible cause of linearity of the modulated frequency shift at small deviation amplitudes observed in experiment is also discussed.

• Research Organization: Fondazione Ugo Bordoni, Via B. Castiglione 59, 00142 Roma, Italy
• OSTI ID: 5415737
• Journal Information: Opt. Spectrosc. (Engl. Transl.); (United States), Journal Name: Opt. Spectrosc. (Engl. Transl.); (United States) Vol. 62:3; ISSN OPSUA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ELEMENTS
FLUIDS
GAS LASERS
GASES
HALOGENS
HELIUM
IODINE
LASERS
NEON
NONMETALS
RARE GASES
SPECTRAL SHIFT
STABILIZATION