Photorefractive Optics At Near-Infrared Wavelengths

P. H. Beckwith; W R Christian; I. C. McMichael; P. A. Yeh

doi:10.1117/12.951733

8 August 1989 Photorefractive Optics At Near-Infrared Wavelengths

P. H. Beckwith, W R Christian, I. C. McMichael, P. A. Yeh

Proceedings Volume 1060, Nonlinear Optical Beam Manipulation and High Energy Beam Propagation Through the Atmosphere; (1989) https://doi.org/10.1117/12.951733
Event: OE/LASE '89, 1989, Los Angeles, CA, United States

Abstract

Measurements of two-wave mixing gain and phase-conjugate response in barium titanate using GaAlAs diode laser sources emitting at 830 nm are discussed. Gain coefficients as large as 18 cm-1 have been obtained with optimized mixing geometries. With an optically isolated barium titanate ring passive phase-conjugate mirror we have obtained phase-conjugate reflectivities as large as 56% (uncorrected for Fresnel reflection losses) and response times on the order of tens of seconds. These results represent significant improvements over corresponding values previously reported in the literature.

Citation Download Citation

P. H. Beckwith, W R Christian, I. C. McMichael, and P. A. Yeh "Photorefractive Optics At Near-Infrared Wavelengths", Proc. SPIE 1060, Nonlinear Optical Beam Manipulation and High Energy Beam Propagation Through the Atmosphere, (8 August 1989); https://doi.org/10.1117/12.951733

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