A Low-Complexity Detector for Memoryless Polarization-Multiplexed Fiber-Optical Channels

Author

Hager, Christian ; Beygi, Lotfollah ; Agrell, Erik ; Johannisson, Pontus ; Karlsson, Magnus ; Graell i Amat, Alexandre

Author_Institution

Chalmers Univ. of Technol., Gothenburg, Sweden

Volume

18

Issue

2

fYear

2014

fDate

Feb-14

Firstpage

368

Lastpage

371

Abstract

A low-complexity detector is introduced for polarization-multiplexed M-ary phase shift keying modulation in a fiber-optical channel impaired by nonlinear phase noise, generalizing a previous result by Lau and Kahn for single-polarization signals. The proposed detector uses phase compensation based on both received signal amplitudes in conjunction with simple straight-line rather than four-dimensional maximum-likelihood decision boundaries.

Keywords

maximum likelihood decoding; optical fibre communication; optical noise; optical signal detection; phase noise; phase shift keying; wavelength division multiplexing; 4D maximum likelihood decision boundaries; M-ary phase shift keying modulation; low-complexity detector; memoryless polarization-multiplexed fiber-optical channels; nonlinear phase noise; phase compensation; Detectors; Nonlinear optics; Optical fibers; Optical noise; Optical polarization; Phase noise; Low-complexity detector; four-dimensional decoding; nonlinear phase noise; polarization-multiplexed fiber-optical channels;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2013.122713.132200

Filename

6714628