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Updated: Jun 11, 2026

Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
Published on: March 20, 2017
Simultaneous demodulation and demultiplexing of multi-rate WDM DPSK signals using a programmable wavelength-selective
Pegah Seddighian1, Victor Torres-Company, Lawrence R Chen
1Department of Electrical and Computer Engineering, McGill University, H3A 2A7 Montreal, Quebec, Canada.
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.

