All-optical intensity modulation of near infrared light in a liquid crystal channel waveguide

d'Alessandro, Antonio and Asquini, Rita and Trotta, Marco and Gilardi, Giovanni and Beccherelli, Romeo and Khoo, Iam Choon (2010) All-optical intensity modulation of near infrared light in a liquid crystal channel waveguide. Applied Physics Letters, 97 (9). pp. 1-3. ISSN 0003-6951

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Abstract

We demonstrate a nonlinear optical channel waveguide made of E7 nematic liquid crystal infiltrated in a silica on silicon groove. Near infrared light at the wavelength of 1560 nm fiber coupled to the core of the liquid crystal waveguide was optically modulated by an optical beam with power below 25 mW by exploiting the optical Freedericks transition. By modeling the optical molecular reorientation in the nematic liquid crystal confined in a waveguiding geometry we are able to reproduce the experimental results.

Item Type: Article
Subjects: 600 Tecnologia - Scienze applicate > 620 Ingegneria e attivita' affini
Depositing User: Matteo Viola
Date Deposited: 03 Jan 2013 16:43
Last Modified: 21 Mar 2013 15:42
URI: http://eprints.bice.rm.cnr.it/id/eprint/4472

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