All-optical devices using nonlinear fiber couplers

Author

Rowland, David R.

Author_Institution

Opt. Sci. Centre, Australian Nat. Univ., Canberra, ACT, Australia

Volume

9

Issue

9

fYear

1991

fDate

9/1/1991 12:00:00 AM

Firstpage

1074

Lastpage

1082

Abstract

The coupler parameters for various all-optical devices using weakly-coupled nonlinear fibers are anticipated from a graphical method of representing extrema of core power called the power flow portrait. These devices are then analyzed in detail both analytically and numerically. Devices considered include a bandpass power filter, various schemes for logic gates, and a novel power-dependent switch utilizing saturation. By anticipating the mode portrait required to obtain the desired output characteristics, the required device and material parameters needed to achieve these portraits are determined, in the case of the bandpass power filter, from a catalog of nonlinear directional coupler mode portrait types, and by extrapolation in the case of the power-dependent switch

Keywords

band-pass filters; directional couplers; optical Kerr effect; optical couplers; optical fibres; optical filters; optical logic; optical saturation; optical switches; Kerr coefficients; all-optical devices; bandpass power filter; graphical method; logic gates; nonlinear directional coupler mode portrait types; nonlinear fiber couplers; output characteristics; power flow portrait; power-dependent switch; saturation; weakly-coupled nonlinear fibers; Australia; Couplings; Load flow; Logic devices; Logic gates; Optical fiber couplers; Optical fiber devices; Power filters; Propagation constant; Switches;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.85803

Filename

85803