Switching characteristics of variable coupling coefficient nonlinear directional coupler

Author

Liu, Gang Jun ; Liang, Bin Ming ; Jin, Guo Liang ; Li, Qu

Author_Institution

Dept. of Phys., Shanghai Jiao Tong Univ., China

Volume

22

Issue

6

fYear

2004

fDate

6/1/2004 12:00:00 AM

Firstpage

1591

Lastpage

1597

Abstract

This paper analyzes the characteristics of the variable coupling coefficient nonlinear directional coupler (VCC NLDC) in detail. The self-switching transmission curves of three types of NLDC with different coupler length are compared. Their phase-controlled transmission curves are compared, and these device acting as pump-controlled switches are analyzed. It is found that the VCC NLDCs show digital characteristics with the increase of the input power. As phase-controlled devices, the response of the VCC NLDC is binarylike when the input power is high. As pump-controlled devices, the transmission curves of the signal are similar to their self-switching transmission curves, except for some specific details.

Keywords

light transmission; optical directional couplers; optical switches; binarylike response; nonlinear directional coupler; phase-controlled transmission curves; pump-controlled switches; self-switching transmission curves; switching; variable coupling coefficient; Couplings; Difference equations; Directional couplers; Finishing; Gaussian processes; Helium; Nonlinear equations; Physics; Signal processing; Switches; All-optical switching; NLDC; VCC; nonlinear directional coupler; variable coupling coefficient;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2004.829228

Filename

1303736