title: Simultaneous demodulation and demultiplexing of multi-rate WDM DPSK signals using a programmable wavelength-selective switch.
abstract: 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.
authors.affiliation: Department of Electrical and Computer Engineering, McGill University, H3A 2A7 Montreal, Quebec, Canada.
authors.forename: Pegah
authors.initials: P
authors.lastname: Seddighian
authors.forename: Victor
authors.initials: V
authors.lastname: Torres-Company
authors.forename: Lawrence R
authors.initials: LR
authors.lastname: Chen
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D055096:Optical Devices; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D013685:Telecommunications / Q000295:instrumentation*