Asynchronous Phase Modulation for the Suppression of IFWM

Author

Forzati, Marco ; Berntson, Anders ; Mårtensson, Jonas ; Djupsjöbacka, Anders

Author_Institution

Acreo AB, Stockholm

Volume

25

Issue

10

fYear

2007

Firstpage

2969

Lastpage

2975

Abstract

Intrachannel four-wave mixing (IFWM) represents main source of impairments in fiber transmission at 40 Gb/s. A number of phase modulation techniques have been proposed to suppress the IFWM. In this paper, we study a cost-effective way of increasing the nonlinear tolerance of a 40-Gb/s wavelength division multiplexing transmission system by asynchronous phase modulation (APM). This can be achieved with one phase modulator placed after the wavelength multiplexer so that cost is shared by all channels. We show, by means of numerical simulations and laboratory experiments, that APM greatly improves the performance of ON-OFF-keying transmission.

Keywords

amplitude shift keying; multiwave mixing; optical fibre communication; optical modulation; phase modulation; wavelength division multiplexing; IFWM; ON-OFF-keying transmission; asynchronous phase modulation techniques; bit rate 40 Gbit/s; fiber transmission; intrachannel four-wave mixing; nonlinear tolerance; phase modulator; wavelength division multiplexing transmission system; Bit rate; Costs; Four-wave mixing; Frequency; Numerical simulation; Optical fibers; Optical signal processing; Phase modulation; Polarization; Wavelength division multiplexing; Fiber optics communications; fibers; nonlinear optics;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2007.904414

Filename

4346613