Brillouin nonlinearity as a mechanism of dynamic holography

Oleg Kotiaevy; Shigeaki Uchida; Hiroshi Sawada

doi:10.1117/12.417745

2 March 2001 Brillouin nonlinearity as a mechanism of dynamic holography

Oleg Kotiaevy, Shigeaki Uchida, Hiroshi Sawada

Proceedings Volume 4353, Laser Optics 2000: Control of Laser Beam Characteristics and Nonlinear Methods for Wavefront Control; (2001) https://doi.org/10.1117/12.417745
Event: Laser Optics 2000, 2000, St. Petersburg, Russian Federation

Abstract

The dynamic holography is considered as the most perspective technique of correction for dynamic aberrations of large- aperture optical elements when operating in near IR range. The use of fluorocarbon Flourinert FC-72, characterized by Brillouin nonlinearity, for recording the dynamic hologram has been demonstrated experimentally. Resonant enhancement of the hologram's diffraction efficiency resulting in 10 times growth has been shown. Diffraction efficiency over 50% has been obtained. Different behavior of diffraction efficiency in dependence on intensity of recording beams and length of nonlinear medium has been shown. Capability of correction of laser beam distortions as well as dynamic behavior of recorded hologram have been tested. The random phase distortions bringing about 20 times increase of the laser beam divergence have been corrected resulting in near-diffraction quality of a point object image. It has been shown that lifetime of the hologram does not exceed 10^-9 sec. Perspective of the use of Brillouin enhanced dynamic holography for nonlinear compensation of optical aberrations has been presented.

Citation Download Citation

Oleg Kotiaevy, Shigeaki Uchida, and Hiroshi Sawada "Brillouin nonlinearity as a mechanism of dynamic holography", Proc. SPIE 4353, Laser Optics 2000: Control of Laser Beam Characteristics and Nonlinear Methods for Wavefront Control, (2 March 2001); https://doi.org/10.1117/12.417745

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