Integrated Optics

Nanophotonic interferometer realizing all-optical exclusive or gate on a silicon chip

[+] Author Affiliations
Ofer Limon, Zeev Zalevsky

Bar-Ilan University, School of Engineering, Ramat-Gan, 52900, Israel

Opt. Eng. 48(6), 064601 (June 24, 2009). doi:10.1117/1.3156021
History: Received November 21, 2008; Revised April 30, 2009; Accepted May 04, 2009; Published June 24, 2009
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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 π 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 <1.8μm.

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© 2009 Society of Photo-Optical Instrumentation Engineers

Citation

Ofer Limon and Zeev Zalevsky
"Nanophotonic interferometer realizing all-optical exclusive or gate on a silicon chip", Opt. Eng. 48(6), 064601 (June 24, 2009). ; http://dx.doi.org/10.1117/1.3156021


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