Transmission of Mixed 224-Gb/s and 112-Gb/s PDM-QPSK at 50-GHz Channel Spacing Over 1200-km Dispersion-Managed LEAF® Spans and Three ROADMs

Author

Xie, Chongjin ; Raybon, Gregory ; Winzer, Peter J.

Author_Institution

Bell Labs., Alcatel-Lucent, Holmdel, NJ, USA

Volume

30

Issue

4

fYear

2012

Firstpage

547

Lastpage

552

Abstract

By using asymmetric interleavers, carrier-suppressed polarization-division-multiplexed quadrature-phase-shift-keying (CSRZ-PDM-QPSK), and coherent detection, we successfully transmit a mix of 224-Gb/s and 112-Gb/s PDM-QPSK channels at a 50-GHz channel spacing and 3-b/s/Hz spectral efficiency over 1200-km dispersion-managed LEAF® spans with three ROADMs and over 2000 km without ROADMs.

Keywords

channel spacing; interleaved codes; multiplexing; optical fibre communication; optical fibre dispersion; optical modulation; quadrature phase shift keying; CSRZ-PDM-QPSK; PDM-QPSK; ROADM; asymmetric interleavers; bit rate 112 Gbit/s; bit rate 224 Gbit/s; carrier-suppressed polarization-division-multiplexed quadrature-phase-shift-keying; channel spacing; coherent detection; dispersion-managed LEAF spans; distance 1200 km; frequency 50 GHz; spectral efficiency; Bandwidth; Optical add-drop multiplexers; Optical fiber amplifiers; Optical fiber dispersion; Phase shift keying; Stimulated emission; Coherent detection; ROADM; fiber nonlinearities; filtering; modulation formats; optical communications;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2011.2176313

Filename

6095303