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arXiv · 0812.2118

Collision and fusion of counterpropagating micron-sized optical beams in non-uniformly biased photorefractive crystals

A. Ciattoni·A. Marini·C. Rizza·E. DelRe
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Abstract

We theoretically investigate collision of optical beams travelling in opposite directions through a centrosymmetric photorefractive crystal biased by a spatially non-uniform voltage. We analytically predict the fusion of counterpropagating solitons in conditions in which the applied voltage is rapidly modulated along the propagation axis, so that self-bending is suppressed by the "restoring symmetry" mechanism. Moreover, when the applied voltage is slowly modulated, we predict that the modified self-bending allows conditions in which the two beams fuse together, forming a curved light-channel splice.

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A. Ciattoni, A. Marini, C. Rizza, E. DelRe. 2008-12-11. Collision and fusion of counterpropagating micron-sized optical beams in non-uniformly biased photorefractive crystals. https://doi.org/10.1364/ol.34.000911

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