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Type: Artigo de periódico
Title: Optical bistability in nonlinear waveguides with photonic crystals
Author: Nobrega, KZ
Hernandez-Figueroa, HE
Abstract: A new way to reduce the critical power of the bistable behavior in nonlinear optical waveguides is presented. This is achieved by embedding circular photonic crystals (PCs), satisfying the Bragg condition, along a channel waveguide. Three different schemes are anaylzed: PCs in the core region only. PCs in the cladding region only, and a partial fulfillment of the core with PCs. All cases presented a decreasing of the critical or threshold power. Our numerical simulations, using the finite-element method, show the possibility to reduce up to three times the critical power, as compared to a conventional nonlinear channel waveguide. Threshold powers as low as 30 muW can be achieved. (C) 2004 Wiley Periodicals. Inc.
Subject: optical bistability
finite-element method
nonlinear optical waveguides
photonic crystals
Country: EUA
Editor: John Wiley & Sons Inc
Rights: fechado
Identifier DOI: 10.1002/mop.20040
Date Issue: 2004
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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