Slow light using photorefractive nonlinear optics

Nacera Bouldja; Marc Sciamanna; Delphine Wolfersberger

doi:10.1117/12.2559258

1 April 2020 Slow light using photorefractive nonlinear optics

Nacera Bouldja, Marc Sciamanna, Delphine Wolfersberger

Proceedings Volume 11358, Nonlinear Optics and its Applications 2020; 113580I (2020) https://doi.org/10.1117/12.2559258
Event: SPIE Photonics Europe, 2020, Online Only

Abstract

Slow and fast light are achieved in two experiments using SPS photorefractive crystal at room temperature. We report that the photorefractive gain achieved by the two wave mixing (TWM) method can control the group velocity of the transmitted light pulses at visible wavelength. It is shown theoretically and experimentally that the time delay and the shape of the output pulse change as a function of the photorefractive gain. The beam fanning has also been used to control the velocity propagation of a single light pulse in the same crystal at λ = 1064 nm. Depending on the orientation of the polar axis, it is possible to accelerate or decelerate a short pulse with duration of order of μs in the crystal.

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Citation Download Citation

Nacera Bouldja, Marc Sciamanna, and Delphine Wolfersberger "Slow light using photorefractive nonlinear optics", Proc. SPIE 11358, Nonlinear Optics and its Applications 2020, 113580I (1 April 2020); https://doi.org/10.1117/12.2559258

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