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Journal of the Optical Society of America B

Journal of the Optical Society of America B

| OPTICAL PHYSICS

  • Vol. 15, Iss. 12 — Dec. 1, 1998
  • pp: 2861–2867

Pulse trapping and nonequilibrium spatiotemporal wave mixing in broad-area semiconductor lasers

E. Gehrig and O. Hess  »View Author Affiliations


JOSA B, Vol. 15, Issue 12, pp. 2861-2867 (1998)
http://dx.doi.org/10.1364/JOSAB.15.002861


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Abstract

The trapping and dynamic nonequilibrium spatiospectral mixing of two nonresonant picosecond pulses injected into the active area of a broad-area semiconductor laser are investigated on the basis of spatiotemporal numerical simulations. The spatiotemporal dynamics of the nonequilibrium Wigner distributions of the charge carriers and the interband polarization reveal the spatiospectral wave mixing and spatiospectral nature of self-focusing, propagation-induced hole burning, dynamic nonlinear waveguiding, and interference effects. This interplay of effects is identified as the origin of the pulse merging and of the subsequent formation of a trapped pulse that is reminiscent of a spatial optical soliton.

© 1998 Optical Society of America

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(140.3430) Lasers and laser optics : Laser theory
(140.5960) Lasers and laser optics : Semiconductor lasers
(190.0190) Nonlinear optics : Nonlinear optics
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons
(190.7070) Nonlinear optics : Two-wave mixing

Citation
E. Gehrig and O. Hess, "Pulse trapping and nonequilibrium spatiotemporal wave mixing in broad-area semiconductor lasers," J. Opt. Soc. Am. B 15, 2861-2867 (1998)
http://www.opticsinfobase.org/josab/abstract.cfm?URI=josab-15-12-2861


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References

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  17. Although the self-focusing processes may in general depend on the particular spatial shape of the input pulses and their power densities, the conditions assumed here can be considered typical; i.e., within a large variation of input intensities, only minor quantitative changes in the behavior have been observed in the simulations.

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