Switching Power Reduction of the Plasmonic Directional Coupler by XPM Nonlinear Effect

Author

Nozhat, Najmeh ; Granpayeh, Nosrat

Author_Institution

Fac. of Electr. & Comput. Eng., K.N. Toosi Univ. of Technol., Tehran, Iran

Volume

24

Issue

13

fYear

2012

fDate

7/1/2012 12:00:00 AM

Firstpage

1154

Lastpage

1156

Abstract

In this letter, the nonlinear plasmonic directional coupler (PDC) with 90ž waveguide bends based on Kerr nonlinear effect has been analyzed numerically by the finite-difference time-domain method. It has been shown that by utilizing the cross-phase modulation nonlinear effect, the required switching pump and signal power of the PDC is much lower than the signal power of the one with self-phase modulation effect.

Keywords

finite difference time-domain analysis; optical Kerr effect; optical directional couplers; optical modulation; optical switches; plasmonics; self-phase modulation; waveguide discontinuities; Kerr nonlinear effect; XPM nonlinear effect; cross-phase modulation; finite-difference time-domain method; plasmonic directional coupler; self-phase modulation effect; switching power reduction; switching pump; waveguide bends; Couplings; Directional couplers; Modulation; Optical switches; Optical waveguides; Plasmons; Cross-phase modulation; directional coupler; nonlinear Kerr effect; optical switch; surface plasmons;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2012.2197856

Filename

6208818