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Conference Paper
Photorefractive Effects, Materials, and Devices
Sanya, Hainan China
July 19, 2005
ISBN: 1-55752-793-8
Solitons and Optical Lattices (SOL)

Secondary modulation instability of partially coherent beams in anisotropic media

Bjorn Gutlich, Cornelia Denz, Thomas Konig, Kristian Motzek, and Friedemann Kaiser

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We experimentally and numerically investigate the modulation instability of incoherent optical beams in photorefractive media. Due to material anisotropy the modulation instability occurs successively from formation of stripes at a first threshold to full two dimensional filaments at a second threshold. We study the dependence of these onsets on the coherence properties of the beam. We derive experimental thresholds for modulation instability from contrast measurements and compare experimental and numerical results.

© 2005 Optical Society of America

OCIS Codes
(190.4420) Nonlinear optics : Nonlinear optics, transverse effects in
(190.5330) Nonlinear optics : Photorefractive optics
(190.5530) Nonlinear optics : Pulse propagation and temporal solitons

B. Gutlich, C. Denz, T. Konig, K. Motzek, and F. Kaiser, "Secondary modulation instability of partially coherent beams in anisotropic media," in Photorefractive Effects, Materials, and Devices, G. Zhang, D. Kip, D. Nolte, and J. Xu, eds., Vol. 99 of OSA Trends in Optics and Photonics (Optical Society of America, 2005), paper 540.

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