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Analysis of bistable steady characteristics and dynamic stability of linearly tapered nonlinear Bragg gratings.
Opt Express ; 12(13): 2945-53, 2004 Jun 28.
Article em En | MEDLINE | ID: mdl-19483811
ABSTRACT
Based on the nonlinearly coupled mode equations (NLCME), the bistable steady characteristics and dynamic stability of linearly tapered nonlinear Bragg grating (LT-NLBG) have been investigated in detail. The results show that, when the device is tuned near an edge of "photonic band gap" (PBG), in contrast with the free-tapered grating, the negative-tapered grating enhances the switching-on threshold, but increases the on-off switching ratio, enlarges the stable regime, and strengthens the stability significantly. On the other hand, the positive-tapered grating decreases the switching-on threshold, but lower the on-off switching ratio, and worsen the stability remarkably.
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Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Opt Express Assunto da revista: OFTALMOLOGIA Ano de publicação: 2004 Tipo de documento: Article
Buscar no Google
Coleções: 01-internacional Base de dados: MEDLINE Idioma: En Revista: Opt Express Assunto da revista: OFTALMOLOGIA Ano de publicação: 2004 Tipo de documento: Article