Optical spectral inversion without frequency shift by four-wave mixing using two pumps with orthogonal polarization

Author

Mecozzi, A. ; Contestabile, G. ; Martelli, F. ; Graziani, L. ; D´Ottavi, A. ; Spano, P. ; Dall´Ara, R. ; Eckner, J. ; Girardin, F. ; Guekos, G.

Author_Institution

Fondazione Ugo Bordoni, Rome, Italy

Volume

10

Issue

3

fYear

1998

fDate

3/1/1998 12:00:00 AM

Firstpage

355

Lastpage

357

Abstract

We propose a method to obtain spectral inversion of a signal without shifting its frequency. We use four-wave mixing (FWM) in a semiconductor optical amplifier (SOA) with two pumps of orthogonal polarization. A conjugate field is generated with a polarization orthogonal to that of the incoming signal and is selected at the amplifier output by a polarizer. Using a commercially available pig-tailed SOA of 1.5-mm length, we obtain after the polarizer 21.5 dB of intensity ratio between conjugate and amplified incoming signal.

Keywords

light polarisation; multiwave mixing; optical communication equipment; optical frequency conversion; optical polarisers; optical pumping; semiconductor lasers; 1.5 mm; amplified incoming signal; conjugate field; conjugate incoming signal; four-wave mixing; intensity ratio; optical spectral inversion without frequency shift; orthogonal polarization; pig-tailed SOA; semiconductor optical amplifier; spectral inversion; Four-wave mixing; Frequency; Nonlinear optics; Optical amplifiers; Optical mixing; Optical polarization; Optical pumping; Semiconductor optical amplifiers; Signal generators; Stimulated emission;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.661408

Filename

661408