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Photorefractive nonlinear propagation of single beams in undoped LiNbO3: Self-defocusing and beam break-up

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Beam propagation in photorefractive LiNbO3 planar waveguides has been studied at different beam intensities and propagation lengths. Self-defocusing and beam break-up have been observed and explained using BPM simulations under a 2-centre band transport model.

© 2010 Optical Society of America

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