Abstract

The design and operation of a multidimensional photorefractive correlator is described. With a photorefractive medium as the integrator, this system effects the correlation of up to four time-evolving signals. The holographic correlation volume is viewed by projection onto a two-dimensional detector. The correlator is designed for use with binary-phase signals, especially pseudorandom noise sequences.

© 1997 Optical Society of America

Radio-frequency matched filtering by photorefractive optical holography

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Two-dimensional measurement of the temporal correlation function of picosecond light pulses recorded in a photorefractive crystal

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