Polarization-Insensitive Phase-Preserving Regenerator Based on a Fiber Optical Parametric Amplifier With Dual Orthogonal Pumps

Author

Xiaojie Guo ; Lei, Gordon K. P. ; Xuelei Fu ; Hon Ki Tsang ; Shu, Chester

Author_Institution

Dept. of Electron. Eng., Chinese Univ. of Hong Kong, Shatin, China

Volume

25

Issue

4

fYear

2013

fDate

Feb.15, 2013

Firstpage

362

Lastpage

364

Abstract

We investigate the gain-saturation characteristics of a dual-orthogonal-pump fiber optical parametric amplifier. Nearly uniform power transfer functions have been obtained for various input signal polarizations by adjusting the total pump power. Based on this physical behavior, we demonstrate polarization-insensitive phase-preserving amplitude regeneration of 40-Gb/s nonreturn-to-zero differential phase-shift keying signals. The receiver sensitivity has been improved by a maximum value of 4.7 dB.

Keywords

differential phase shift keying; optical fibre amplifiers; optical fibre networks; optical fibre polarisation; optical parametric amplifiers; optical pumping; optical repeaters; optical transfer function; bit rate 40 Gbit/s; dual-orthogonal-pump fiber optical parametric amplifier; gain-saturation characteristics; input signal polarization; nonreturn-to-zero differential phase-shift keying signal; physical behavior; polarization-insensitive phase-preserving amplitude regeneration; polarization-insensitive phase-preserving regenerator; power transfer functions; pump power; receiver sensitivity; Fiber nonlinear optics; Optical fiber amplifiers; Optical fiber communication; Optical fiber polarization; Optical polarization; All-optical signal regeneration; fiber optical parametric amplifier; nonlinear fiber optics; optical fiber communication;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2012.2236086

Filename

6392204