Optical bistability and all-optical switching in novel waveguide junctions with localized optical nonlinearity

Author

Murata, Hiroshi ; Izutsu, Masayuki ; Sueta, Tadasi

Author_Institution

Graduate Sch. of Eng. Sci., Osaka Univ., Japan

Volume

16

Issue

5

fYear

1998

fDate

5/1/1998 12:00:00 AM

Firstpage

833

Lastpage

840

Abstract

We propose novel all-optical guided-wave devices using the structure with localized third-order optical nonlinearity where only a selected part of a waveguide both in a cross section and along a propagation direction is made from a Kerr-like nonlinear material and the rest are made from linear ones. Optical bistable devices and all-optical switching devices are realizable by utilizing bistable like nonlinear dispersion characteristics in selectively nonlinear guided-wave systems. Optical bistability and all-optical switching characteristics are analyzed in waveguide Y-junctions adopted the scheme by using a modified BPM combined with the normal mode analysis. The method to realize the guided-wave structure with localized nonlinearity is also discussed

Keywords

optical Kerr effect; optical bistability; optical couplers; optical switches; optical waveguide theory; optical waveguides; Kerr-like nonlinear material; all-optical guided-wave devices; all-optical switching; all-optical switching characteristics; all-optical switching devices; bistable like nonlinear dispersion characteristics; cross section; guided-wave structure; localized nonlinearity; localized optical nonlinearity; localized third-order optical nonlinearity; modified BPM; normal mode analysis; optical bistability; propagation direction; selectively nonlinear guided-wave systems; selectively nonlinear guided-wave systems.; waveguide Y-junctions; waveguide junctions; Nonlinear optical devices; Nonlinear optics; Optical bistability; Optical devices; Optical interferometry; Optical signal processing; Optical surface waves; Optical waveguides; Ultrafast optics; Waveguide junctions;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.669014

Filename

669014