Abstract
Holographic image storage in LiNbO3 fibers and reconstruction with a phase-conjugate mirror is investigated. The purpose of using a phase-conjugate mirror is to compensate for intrasignal photorefractive coupling, modal phase dispersion, and intermode scattering. The influence of intrasignal photorefractive coupling on the amplitude distortion of the reconstructed image is emphasized. It is shown both theoretically and experimentally that the reconstructed image is free from distortion caused by the intrasignal coupling when the formation of reflection gratings is avoided by using a light source of low coherence. The image reconstructed from a test LiNbO3 fiber with a 0.5-mm diameter is found to have a spatial resolution of 7 lines/mm. This resolution is close to the theoretical limit determined by the fiber diameter and the focal length of the Fourier lens.
© 1992 Optical Society of America
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