DSP-based compensation of non-linear impairments in 100 Gb/s PolMux QPSK

Author

Mussolin, Marco ; Forzati, Marco ; Mårtensson, Jonas ; Carena, Andrea ; Bosco, Gabriella

Author_Institution

Dept. of Inf. Eng., Univ. of Padova, Padova, Italy

fYear

2010

Firstpage

1

Lastpage

4

Abstract

PolMux QPSK has emerged as the solution of choice for the first commercial implementations of 100 Gb/s transmission systems. Thanks to coherent detection and digital signal processing (DSP), linear distortions such as chromatic dispersion (CD) and polarisation mode dispersion (PMD) can in principle be completely compensated for. And indeed, effective algorithms have been devised and extensively investigate that allow CD- and PMD-resilient transmission of 100 Gb/s over long distances, leaving optical noise accumulation and non-linear impairments as the factors ultimately limiting reach. In this paper, we present the evaluation of a simple algorithm to compensate for intra-channel Kerr non-linearity (both intra- and cross-polarisation) arising in the transmission of PolMux QPSK signals at 100 Gb/s.

Keywords

distortion; quadrature phase shift keying; signal processing; DSP based compensation; PolMux QPSK; bit rate 100 Gbit/s; chromatic dispersion; coherent detection; digital signal processing; linear distortion; nonlinear impairment; polarisation mode dispersion; Chromatic dispersion; Digital signal processing; Limiting; Nonlinear distortion; Optical distortion; Optical noise; Optical polarization; Polarization mode dispersion; Quadrature phase shift keying; Signal processing algorithms; 100 Gigabit Ethernet; DSP; PolMux QPSK; non-linear analysis; transmission;

fLanguage

English

Publisher

ieee

Conference_Titel

Transparent Optical Networks (ICTON), 2010 12th International Conference on

Conference_Location

Munich

Print_ISBN

978-1-4244-7799-9

Electronic_ISBN

978-1-4244-7797-5

Type

conf

DOI

10.1109/ICTON.2010.5549084

Filename

5549084