Share Email Print

Proceedings Paper

Switches and tunable filters based on ring resonators and liquid crystals
Author(s): Carmen Vázquez; Pedro Contreras; Julio Montalvo; José Manuel Sánchez Pena; Antonio d'Alessandro; Domenico Donisi
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

In this paper, different optical configurations, simple and compound, based on ring resonators and using liquid crystals as the tuning or controlling block, are reported. Specific attention is given to their application as tunable filters and wavelength switches, in this last case as part of complex matrix fabrics for all optical switching. Simulations of integrated optics ring resonators are developed using FullWave by R-Soft. In the compound configurations that use serial micro ring resonators it is implemented a 3 port reconfigurable demultiplexer in a compact cross-grid configuration. Theoretical 10 nm tuning is reported on SOI substrate with nematic liquid crystals. Optimization of the critical coupling condition by changing the evanescent coupling length is also reported. Theoretical analysis is presented to identify and emphasize the design parameters of each configuration as regards its application of interest. The reported structures can be developed in integrated optic technologies; all designs corresponds to state of the art integrated optics technology. A revision of photonics circuits with equivalent components already developed is reported.

Paper Details

Date Published: 12 June 2007
PDF: 10 pages
Proc. SPIE 6593, Photonic Materials, Devices, and Applications II, 65931F (12 June 2007); doi: 10.1117/12.722058
Show Author Affiliations
Carmen Vázquez, Carlos III Univ. of Madrid (Spain)
Pedro Contreras, Carlos III Univ. of Madrid (Spain)
Julio Montalvo, Carlos III Univ. of Madrid (Spain)
José Manuel Sánchez Pena, Carlos III Univ. of Madrid (Spain)
Antonio d'Alessandro, Univ. degli Studi di Roma La Sapienza (Italy)
Domenico Donisi, Univ. degli Studi di Roma La Sapienza (Italy)

Published in SPIE Proceedings Vol. 6593:
Photonic Materials, Devices, and Applications II
Ali Serpengüzel; Gonçal Badenes; Giancarlo C. Righini, Editor(s)

© SPIE. Terms of Use
Back to Top