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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 16, Iss. 7 — Jul. 1, 1999
  • pp: 1049–1058

Nonlinear dynamics of an optically pumped laser with pump polarization modulation:stabilization of unstable steady states

A. Kul'minskii, R. Vilaseca, and R. Corbalán  »View Author Affiliations


JOSA B, Vol. 16, Issue 7, pp. 1049-1058 (1999)
http://dx.doi.org/10.1364/JOSAB.16.001049


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Abstract

We study theoretically the dynamic behavior of a J=1→J=0 laser (J is the angular momentum quantum number) optically pumped by means of a linearly polarized coherent field (coupled to an adjacent transition J=0→J=1) when the pump field polarization is rotated at a constant angular velocity Ω and the laser field polarization either is fixed by the cavity or is free (isotropic cavity). Because of a strong pump-induced gain anisotropy, the dynamic behavior is completely different in each case. In the case of fixed laser field polarization, rich amplitude dynamics, which depend on the pump field strength, are found. At slow modulation frequencies (with respect to the molecular and the cavity relaxation rates), the system does not always follow the sequence of stationary and dynamic solutions that correspond to the autonomous laser as a function of the relative orientation angle between the polarizations of the pump and the laser fields. Phenomena such as delayed switching and suppression of chaos and stabilization of unstable steady states are found. In the case of an isotropic cavity, the pump field vector rotation is transferred to the laser field vector and amplitude unstable regimes are also strongly inhibited.

© 1999 Optical Society of America

Citation
A. Kul'minskii, R. Vilaseca, and R. Corbalán, "Nonlinear dynamics of an optically pumped laser with pump polarization modulation:stabilization of unstable steady states," J. Opt. Soc. Am. B 16, 1049-1058 (1999)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-16-7-1049


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