Signal processing by opto-optical interactions between self-localized and free propagating beams in liquid crystals

Details Signal processing by opto-optical interactions between self-localized and free propagating beams in liquid crystals Signal processing by opto-optical interactions between self-localized and free propagating beams in liquid crystals

2005-09-08

arxiv.org/abs/physics/0509063v1

Physics

Optics

Scientific paper

10.1063/1.2158026

The reorientational nonlinearity of nematic liquid crystals enables a self-localized spatial soliton and its waveguide to be deflected or destroyed by a control beam propagating across the cell. We demonstrate a simple all-optical readdressing scheme by exploiting the lens-like perturbation induced by an external beam on both a nematicon and a co-polarized guided signal of different wavelength. Angular steering as large as 2.2 degrees was obtained for control powers as low as 32mW in the near infrared.

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