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Optical Engineering

Optical image-combiner OR gate and optical AND gate using beam fanning effect in BaTiO3 crystals
Author(s): Hon-Fai Yau; Hsiao-Yi Lee; Peir-Jyh Wang
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Paper Abstract

Making use of the beam fanning effect in a BaTiO3 crystal, we propose two simple setups to perform the function of an optical image-combiner/OR-gate and an optical AND gate, respectively. The optical image combiner combines two patterns, mutually coherent or mutually incoherent, from two input channels into a single coherent one. Experimental results have shown that the response time of these devices ranges from 0.01 to 2.5 s. In the image-combiner/OR-gate device, three optical waves are involved. The first two carry the input signals into a 45-deg-cut BaTiO3 crystal; the third one brings the output out of the BaTiO3 crystal to the output plane. The AND-gate device, however, requires only two input beams.

Paper Details

Date Published: 1 December 1994
PDF: 4 pages
Opt. Eng. 33(12) doi: 10.1117/12.183392
Published in: Optical Engineering Volume 33, Issue 12
Show Author Affiliations
Hon-Fai Yau, National Central Univ. (Taiwan)
Hsiao-Yi Lee, National Central Univ. (Taiwan)
Peir-Jyh Wang, National Central Univ. (Taiwan)

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