Laser beam self-channeling in a photorefractive waveguide

Alexei A. Kamshilin

doi:10.1117/12.2316076

1 September 1996 Laser beam self-channeling in a photorefractive waveguide

Alexei A. Kamshilin

Proceedings Volume 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology; 2778AR (1996) https://doi.org/10.1117/12.2316076
Event: 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 1996, Taejon, Korea, Republic of

Abstract

We report an experimental observation of the light beam self-channeling inside the photorefractive Bi₁₂TiO₂₀ waveguide-like sample. The phenomenon occurs when the strong fanning effect takes place. Total internal reflections of fanned beams from the waveguide surfaces and their coupling with the pump beam result in the light intensity redistribution inside the photorefractive waveguide. The self-induced channel of the increased light intensity speeds up the photorefractive energy exchange process.

Citation Download Citation

Alexei A. Kamshilin "Laser beam self-channeling in a photorefractive waveguide", Proc. SPIE 2778, 17th Congress of the International Commission for Optics: Optics for Science and New Technology, 2778AR (1 September 1996); https://doi.org/10.1117/12.2316076

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