Simultaneous Binarisation And Amplification Of Optical Signals Through The Photorefractive Effect

V. Hornung-Lequeux; P. Lalanne; P. Chavel; G. Roosen

doi:10.1117/12.961428

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22 December 1989 Simultaneous Binarisation And Amplification Of Optical Signals Through The Photorefractive Effect

V. Hornung-Lequeux, P. Lalanne, P. Chavel, G. Roosen

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Proceedings Volume 1127, Nonlinear Optical Materials II; (1989) https://doi.org/10.1117/12.961428
Event: 1989 International Congress on Optical Science and Engineering, 1989, Paris, France

Abstract

We show how photorefractive two wave mixing allows a nonlinear input-output response providing compational abilities of decision. Particularly, we investigate the realization of a photo-refractive "optical neuron". Signal amplification with saturation is obtained and could compensate for losses due to holograhic connections. Moreover, the treatment of bipolar signals is allowed by preserving the phase of the wave in a coherent situation. Experimental evidence, using a crystal of BaTiO3 is presented.

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V. Hornung-Lequeux, P. Lalanne, P. Chavel, and G. Roosen "Simultaneous Binarisation And Amplification Of Optical Signals Through The Photorefractive Effect", Proc. SPIE 1127, Nonlinear Optical Materials II, (22 December 1989); https://doi.org/10.1117/12.961428

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