All-optical switching in phase-shifted fiber Bragg grating

Author

Melloni, A. ; Chinello, M. ; Martinelli, M.

Author_Institution

Dipt. di Elettronica e Inf., Politecnico di Milano, Italy

Volume

12

Issue

1

fYear

2000

Firstpage

42

Lastpage

44

Abstract

A low-power all-optical-switching in a phase-shifted grating has been experimentally demonstrated at 1.55 μm. The grating is written in a standard fiber for communication and the switching is based on the cross-phase modulation induced by an intense pump pulse on a low intensity probe. An extinction ratio of more than 6 dB has been achieved for 1 kW pulse peak power. The strong enhancement of the nonlinear effect due to the group velocity reduction and the switching polarization dependence have been theoretically investigated and experimentally confirmed.

Keywords

Bragg gratings; nonlinear optics; optical fibre communication; optical modulation; optical pumping; optical switches; phase modulation; 1 kW; 1.55 mum; all-optical switching; cross-phase modulation; extinction ratio; group velocity reduction; intense pump pulse; kW pulse peak power; low intensity probe; low-power all-optical-switching; nonlinear effect; phase-shifted fiber Bragg grating; standard fiber; strong enhancement; switching polarization dependence; Communication switching; Extinction ratio; Fiber gratings; Fiber nonlinear optics; Nonlinear optical devices; Nonlinear optics; Optical fiber communication; Optical fiber polarization; Optical refraction; Probes;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.817464

Filename

817464