, Volume 70, Issue 3, pp 379-383

Photorefractive fixed optical correlator

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A photorefractive optical correlator stored and fixed in lithium niobate is presented. The device shows good correlation characteristics together with very high output efficiency and insensitivity to optical erasure during read-out.

Received: 10 May 1999 / Revised version: 21 June 1999 / Published online: 16 September 1999