Study on cross-phase modulation (XPM) effect on amplitude and differentially phase-modulated multilevel signals in DWDM transmission

Author

Kikuchi, Nobuhiko ; Sekine, Kenro ; Sasaki, Shinya ; Sugawara, Toshiki

Author_Institution

Central Res. Lab., Hitachi Ltd., Tokyo, Japan

Volume

17

Issue

7

fYear

2005

fDate

7/1/2005 12:00:00 AM

Firstpage

1549

Lastpage

1551

Abstract

The characteristic degradation mechanism of the cross-phase modulation (XPM) effect on multilevel amplitude and differentially phase-shift keying (APSK) signals in dense wavelength-division-multiplexing (DWDM) transmissions is analyzed and experimentally investigated, for the first time. Based on the results, we successfully demonstrate a 0.48-Tb/s (30-Gb/s/ch) 50-GHz-spaced 16-channel DWDM 160-km unrepeatered transmission of eight-level APSK signals suppressing the XPM-induced degradation.

Keywords

amplitude shift keying; channel spacing; differential phase shift keying; optical distortion; optical fibre communication; optical modulation; phase modulation; wavelength division multiplexing; 0.48 Tbit/s; 160 km; 50 GHz; APSK; DWDM; XPM; amplitude differentially phase-modulated multilevel signals; amplitude differentially phase-shift keying; channel spacing; cross-phase modulation; Amplitude modulation; Amplitude shift keying; Degradation; Nonlinear distortion; Optical distortion; Optical modulation; Phase modulation; Phase shift keying; Scanning probe microscopy; Wavelength division multiplexing; Cross-modulation distortion; nonlinear distortion; optical fiber communication; optical modulation;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2005.850013

Filename

1453673