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Electro-optic beam manipulation through photorefractive needles

Eugenio DelRe, Bruno Crosignani, Paolo Di Porto, Elia Palange, and Aharon J. Agranat

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Abstract

We demonstrate electro-optic spatial two-dimensional mode switching in a bulk sample of potassium lithium tantalate niobate. Spatial confinement, mode coupling, and electro-optic functionality are mediated by two photorefractive needle solitons of opposite electroholographic charges embedded together in their anisotropic lobular structure.

© 2002 Optical Society of America

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