d'Alessandro, Antonio and Donisi, Domenico and De Sio , Luciano and Beccherelli, Romeo and Asquini , Rita and Caputo, Roberto and Umeton, Cesare (2008) Tunable integrated optical filter made of a glass ion-exchanged waveguide and an electro-optic composite holographic grating. Optics Express, 16 (13). pp. 9254-9260.
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Abstract
We report the fabrication and the optical characterization of a hybrid tunable integrated optical filter. It consists of a diffused ionexchanged channel waveguide on a borosilicate glass substrate with a cover of the same glass to form a gap filled with a holographic grating. The grating morphology, called POLICRYPS (POlymer LIquid CRYstal Polymer Slices), is made of alternating stripes of polymer and liquid crystal acting as overlayer for the underneath waveguide. The filter structure includes aluminum coplanar electrodes to electrically control the grating properties, allowing the tunability of the filter. The electric driving power required to tune the filter obtained was in the range of submilliwatts due to the efficient liquid crystal electro-optic effect.
| Item Type: | Article |
|---|---|
| Subjects: | 600 Tecnologia - Scienze applicate > 620 Ingegneria e attivita' affini |
| Depositing User: | Matteo Viola |
| Date Deposited: | 21 Dec 2012 11:49 |
| Last Modified: | 06 Feb 2013 17:02 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/4433 |
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