Open AccessSimultaneous demodulation and demultiplexing of multi-rate WDM DPSK signals using a programmable wavelength-selective switch
Author(s) -
Pegah Seddighian,
Víctor Torres-Company,
Lawrence R. Chen
Publication year - 2010
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.011657
Subject(s) - demodulation , wavelength division multiplexing , optics , keying , multiplexing , interferometry , phase shift keying , channel spacing , differential phase , channel (broadcasting) , wavelength , phase modulation , computer science , physics , modulation (music) , dispersion (optics) , bit error rate , telecommunications , phase noise , acoustics
We show demodulation and demultiplexing of multi-channel WDM differential phase-shift-keying (DPSK) signals operating simultaneously at 10 Gb/s and 40 Gb/s using a 1x4 wavelength selective switch. We achieve error-free performance for four channels equally spaced by 100 GHz propagated over an 85 km dispersion-compensated link. We study the advantages and limitations of this new DPSK demodulator compared with the conventional delay-line interferometer.