Izvestiya of Saratov University.

Physics

ISSN 1817-3020 (Print)
ISSN 2542-193X (Online)


For citation:

Plastun I. L., Derbov V. L. Resonant Self-Action and Non-Stationary Coherent Transients in Frequency-Modulated CW Laser Beams. Izvestiya of Sarat. Univ. Physics. , 2008, vol. 8, iss. 1, pp. 59-62. DOI: 10.18500/1817-3020-2008-8-1-59-62

This is an open access article distributed under the terms of Creative Commons Attribution 4.0 International License (CC-BY 4.0).
Full text:
(downloads: 40)
Language: 
Russian
Heading: 
UDC: 
535.345.1

Resonant Self-Action and Non-Stationary Coherent Transients in Frequency-Modulated CW Laser Beams

Autors: 
Plastun Inna L'vovna, Saratov State Technical University named after Yuri Gagarin
Derbov Vladimir Leonardovich , Saratov State University
Abstract: 

Periodical modulation of frequency, typical for spectroscopic pur poses, is numerically modelled in transversely limited, propagating through a saturable two-level absorber cw laser beams. At modula tion periods comparable with the atomic relaxation times the time and frequency dependence of the output intensity exhibits the manifesta tions of delayed medium response, including time-dependent lens and aperture effects that may be of importance in spectroscopy. Simultaneous manifestation and interaction of resonant self-action and non-stationary transients are analyzed in present wor

Reference: 
  1. Javan A., Kelley P. Possibility of self-focusing due to inten sity dependent anomalous dispersion // IEEE J. Quant. Elec tron. 1966. Vol.2, №9. P.470-473.
  2. Bjorkholm J.C., Ashkin A. CW self-focusing and self trapping of light in sodium vapor // Phys. Rev. Lett. 1974. Vol.32. P. 129-132.
  3. Dowell M.L., Hart R.C., Gallagher A., Cooper J. Self focused light propagation in fully saturable medium: experi ment//Phys. Rev. A. 1996. Vol.53, №3. P.1775-1781.
  4. Базаров Е.Н., Герасимов ГА., Губин В.П., Старостин НИ., Фомин ВВ. Динамическа самофокусировк гауссов све товог пучк пр насыщени неоднородно-уширенно лини поглощени // Квантова электроника. 1990. Т.17, №2. С.207-210.
  5. Derbov V.L., Plastun I.L., Serov V.V., Trofimov A.V. Influ ence of the resonant self-action and nonstationary coherent effects on the characteristics of a frequency-modulated laser beam//Proc. SPIE. 2007. Vol.6537. P.125-132.
  6. Шен И.Р. Принцип нелинейно оптики. М.: Наука, 1989.
  7. Melnikov L.A., Derbov V.L., Veshneva I.V., Konukhov A.I. Numerical studies of beam and pulse propagation in lasers and nonlinear media: transverse pattern dynamics and nonparaxial effects // Computers Math. Applic. 1997. Vol.34, №7/8. P.881-909