Experimental demonstration of the maximum likelihood-based chromatic dispersion estimator for coherent receivers
Journal article, 2014

We perform an experimental investigation of a maximum likelihood-based (ML-based) algorithm for bulk chromatic dispersion estimation for digital coherent receivers operating in uncompensated optical networks. We demonstrate the robustness of the method at low optical signal-to-noise ratio (OSNR) and against differential group delay (DGD) in an experiment involving 112 Gbit/s polarization-division multiplexed (PDM) 16-ary quadrature amplitude modulation (16 QAM) and quaternary phase-shift keying (QPSK).

Digital signals

Chromatic dispersion

Optical performance monitoring


R. Borkowski

Technical University of Denmark (DTU)

Pontus Johannisson

Chalmers, Microtechnology and Nanoscience (MC2), Photonics

Henk Wymeersch

Chalmers, Signals and Systems, Communication and Antenna Systems, Communication Systems

V. Arlunno

Technical University of Denmark (DTU)

A. Caballero

Technical University of Denmark (DTU)

D. Zibar

Technical University of Denmark (DTU)

I. T. Monroy

Technical University of Denmark (DTU)

Optical Fiber Technology

1068-5200 (ISSN) 1095-9912 (eISSN)

Vol. 20 2 158-162

Subject Categories

Atom and Molecular Physics and Optics

Signal Processing



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