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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 5, Iss. 5 — May. 1, 1988
  • pp: 1063–1069

Q-switching bifurcation in a laser with a saturable absorber

Thomas Erneux  »View Author Affiliations


JOSA B, Vol. 5, Issue 5, pp. 1063-1069 (1988)
http://dx.doi.org/10.1364/JOSAB.5.001063


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Abstract

The passive Q-switching operation in a laser with a saturable absorber consists of an operation with high-intensity spikes in the output power. It is known that this particular regime corresponds mathematically to a large-amplitude time-periodic solution of the laser equations. In this paper we propose a new asymptotic method to construct this solution. We show how the time-periodic solution appears from an infinite-period solution (homo-clinic solution) and analyze the behavior of the maximum intensity and the period as a function of a control parameter. This asymptotic method is based on a recent evaluation of the parameters for CO2 lasers with different absorbers [ ArimondoE.CasagrandeF.LugiatoL. A.GlorieuxP., Appl. Phys. B 30, 57 ( 1983)]. The relative magnitudes obtained by Arimondo et al. suggest a new approximation of the laser equations.

© 1988 Optical Society of America

History
Original Manuscript: August 24, 1987
Manuscript Accepted: December 2, 1987
Published: May 1, 1988

Citation
Thomas Erneux, "Q-switching bifurcation in a laser with a saturable absorber," J. Opt. Soc. Am. B 5, 1063-1069 (1988)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-5-5-1063

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