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Readdressable Interconnects With Spatial Soliton Waveguides in Liquid Crystal Light Valves

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5 Author(s)
Piccardi, Armando ; Nonlinear Opt. & Opto-Electron. Lab. (NooEL), Univ. Roma Tre, Rome, Italy ; Alberucci, Alessandro ; Bortolozzo, U. ; Residori, S.
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We excite spatial solitons by reorientational nonlinearity of the nematic liquid crystals, using a photoconductive light valve to implement an external light-driven control of their trajectories. Control spots provide deviations of the solitons and allow implementing various routing operations. We demonstrate 2-bit (4-output) and 3-bit (8-output) spatial demultiplexers and a continuously adjustable X/Y power-dependent junction.

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Photonics Technology Letters, IEEE  (Volume:22 ,  Issue: 10 )