Guided modes of nonlinear slot waveguides

Author

Fujisawa, T. ; Koshiba, M.

Author_Institution

Div. of Media & Network Technol., Hokkaido Univ., Sapporo, Japan

Volume

18

Issue

14

fYear

2006

fDate

7/1/2006 12:00:00 AM

Firstpage

1530

Lastpage

1532

Abstract

Guided modes of nonlinear slot waveguides are investigated for the first time and their unusual modal properties are demonstrated. Nonlinear phase shifts of slot waveguides induced by optical Kerr effect exhibit saturable behavior for strong optical intensity. This is because a self-localization effect of electromagnetic fields induced by optical Kerr effect is compensated with a field broadening originating from a unique confinement mechanism of slot waveguides. Nonlinear phase shifts on various structural parameters are thoroughly investigated. All the results presented in this letter are obtained by using a rigorous full-vector finite-element method to ensure accurate analysis.

Keywords

finite element analysis; optical Kerr effect; optical saturation; optical waveguide theory; finite-element method; guided modes; nonlinear phase shifts; nonlinear slot waveguides; optical Kerr effect; optical saturation; self-localization effect; Electromagnetic waveguides; Kerr effect; Nonlinear optical devices; Nonlinear optics; Optical interferometry; Optical refraction; Optical signal processing; Optical variables control; Optical waveguides; Ultrafast optics; Finite-element method (FEM); nonlinear optical waveguide; optical Kerr effect; slot waveguide;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2006.877593

Filename

1650270