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Optical Engineering

Nanophotonic interferometer realizing all-optical exclusive or gate on a silicon chip
Author(s): Ofer Limon; Zeev Zalevsky
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Paper Abstract

We present an all optical approach allowing the realization of microscale logic exclusive or (XOR) gate based on special interferometer configuration. The operation device includes two close optical waveguides realized on a silicon chip. A thin metallic layer of a few nanometers that separates the two waveguides causes a relative phase shift of between them. The structure performs interference of the two input beams while demonstrating XOR logic gate operation at the amplitude of the resulted output. The logic operation is realized after small propagation distance of <1.8 μm.

Paper Details

Date Published: 1 June 2009
PDF: 4 pages
Opt. Eng. 48(6) 064601 doi: 10.1117/1.3156021
Published in: Optical Engineering Volume 48, Issue 6
Show Author Affiliations
Ofer Limon, Bar-Ilan Univ. (Israel)
Zeev Zalevsky, Bar-Ilan Univ. (Israel)

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