Variable coupling coefficient nonlinear directional couplers with self-focusing and self-defocusing nonlinearity

Gang J. Liu, Bin M. Liang, Qu Li, Guo L. Jin

Research output: Contribution to journalArticle

8 Scopus citations

Abstract

Nonlinear directional couplers (NLDCs) with a variable coupling coefficient (VCC) in self-focusing and self-defocusing materials are investigated. Specifically, the Gaussian type VCC NLDCs are studied in detail. The results show that the responses of the VCC NLDCs on self-focusing and self-defocusing materials are different, especially when input power is high. The coupled-mode theory can also be used to predict the characteristics of the VCC NLDC on self-focusing material, even when input power is high.

Original languageEnglish (US)
Pages (from-to)4315-4319
Number of pages5
JournalApplied Optics
Volume42
Issue number21
DOIs
StatePublished - Jul 20 2003

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering

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