Real-time edge-enhanced optical correlation with a cerium-doped potassium sodium strontium barium niobate photorefractive crystal

Bao-Lai Liang, Zhao-Qi Wang, Guo-Guang Mu, Jiu-Hong Guan, Hong-Li Liu, Colin M. Cartwright

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The nonlinear diffraction property of a volume grating written by two-wave mixing in a cerium-doped potassium sodium strontium barium niobate crystal is applied in a coherent image processing system to obtain real-time image edge enhancement as well as edge-enhanced optical correlation. The theoretical analysis of the correlator is given, and the experimental results of optical correlation are presented, which are compared with the computer-simulated results.
Original languageEnglish
Pages (from-to)2925-2930
Number of pages6
JournalApplied Optics
Issue number17
Publication statusPublished - 2000


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