Optical suppression of a double-phase conjugation in a photorefractive Bi12TiO20 waveguide

Erik Raita; Alexei A. Kamshilin; Raimo Veil Johannes Silvennoinen; Timo Jaeaeskelaeinen

doi:10.1117/12.262650

27 December 1996 Optical suppression of a double-phase conjugation in a photorefractive Bi12TiO20 waveguide

Erik Raita, Alexei A. Kamshilin, Raimo Veil Johannes Silvennoinen, Timo Jaeaeskelaeinen

Author Affiliations +

Proceedings Volume 2969, Second International Conference on Optical Information Processing; (1996) https://doi.org/10.1117/12.262650
Event: Second International Conference on Optical Information Processing, 1996, St. Petersburg, Russian Federation

Abstract

Optical suppression of a double phase conjugation has been demonstrated in a photorefractive Bi₁₂TiO₂₀ waveguide-like crystal. A dynamic phase conjugation mirror was recorded by two mutually coherent He-Ne laser beams coming from the one side of the samples and the beam of an independent laser from the opposite side. In the absence of any one of coherent input beams the other one generates the phase-conjugate of the third beam. The situation changes when both coherent beams are simultaneously present. The phase conjugated beam, which was produced by one of the coherent pumps, could either be enhanced or almost completely suppressed by introducing the second pump beam into a system. The final intensity of a phase conjugated beam depends on the polarization angle of the second beam compared with the first one. Almost total suppression is observed when the input beams were orthogonally polarized.

Citation Download Citation

Erik Raita, Alexei A. Kamshilin, Raimo Veil Johannes Silvennoinen, and Timo Jaeaeskelaeinen "Optical suppression of a double-phase conjugation in a photorefractive Bi12TiO20 waveguide", Proc. SPIE 2969, Second International Conference on Optical Information Processing, (27 December 1996); https://doi.org/10.1117/12.262650

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