Donisi, Domenico and Bellini, Bob and Beccherelli, Romeo and Asquini, Rita and Gilardi, Giovanni and Trotta, Marco and d'Alessandro, Antonio (2010) A switchable liquid-crystal optical channel waveguide on silicon. IEEE Journal of Quantum Electronics , 46 (5). pp. 762-768. ISSN 0018-9197
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Abstract
An integrated optical switch based on liquid crystal on silicon is reported. The switch consists of an optical waveguide, whose core is made of nematic liquid crystal E7 infiltrated in a SiO Si V-groove. The electrooptic effect allows us to control the waveguide propagation condition by means of ITO and Si electrodes. A voltage as low as 2 V applied to the driving electrodes turns the waveguide on. Since the output intensity increases with voltage, the waveguide behaves also as a variable optical attenuator. A maximum ON–OFF extinction ratio in excess of 44 dB was measured.
| Item Type: | Article |
|---|---|
| Subjects: | 600 Tecnologia - Scienze applicate > 620 Ingegneria e attivita' affini |
| Depositing User: | Matteo Viola |
| Date Deposited: | 03 Jan 2013 14:56 |
| Last Modified: | 17 Apr 2014 08:21 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/4469 |
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