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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Editor: Henry van Driel
  • Vol. 28, Iss. 12 — Dec. 1, 2011
  • pp: 2947–2955

Nonlinear effects in random lasers

Jonathan Andreasen, Patrick Sebbah, and Christian Vanneste  »View Author Affiliations


JOSA B, Vol. 28, Issue 12, pp. 2947-2955 (2011)
http://dx.doi.org/10.1364/JOSAB.28.002947


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Abstract

Recent numerical and theoretical studies have demonstrated that the modes at threshold of a random laser are in direct correspondence with the resonances of the same system without gain, a feature which is well known in conventional lasers but not known until recently for random lasers. This paper presents numerical results of the multimode regime that takes place when the pumping rate is progressively increased above threshold. Behavior that is already known in standard lasers, such as mode competition and nonlinear wave mixing, are shown to also take place in random lasers thus reinforcing their recent modal description. However, due to the complexity of the laser modes and to the openness of such lasers, which require large external pumping to compensate for strong loss, one observes that these effects are systematic and can be more pronounced than in a conventional laser.

© 2011 Optical Society of America

OCIS Codes
(140.3460) Lasers and laser optics : Lasers
(290.4210) Scattering : Multiple scattering
(190.4223) Nonlinear optics : Nonlinear wave mixing
(260.2710) Physical optics : Inhomogeneous optical media

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: July 29, 2011
Revised Manuscript: September 14, 2011
Manuscript Accepted: September 30, 2011
Published: November 18, 2011

Citation
Jonathan Andreasen, Patrick Sebbah, and Christian Vanneste, "Nonlinear effects in random lasers," J. Opt. Soc. Am. B 28, 2947-2955 (2011)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-28-12-2947

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