Correlation-Based Carrier Phase Estimation for WDM DP-QPSK Transmission

Author

Piyawanno, Kittipong ; Kuschnerov, Maxim ; Hauske, Fabian N. ; Spinnler, Bernhard ; Schmidt, Ernst-Dieter ; Lankl, Berthold

Author_Institution

Inst. for Inf. & Commun. Technol., Univ. of the Fed. Armed Forces, Neubiberg

Volume

20

Issue

24

fYear

2008

Firstpage

2090

Lastpage

2092

Abstract

A novel algorithm for frequency offset compensation and carrier phase estimation in systems with 40 or 111 Gb/s coherent dual-polarization quadrature phase-shift keying (DP-QPSK) with on-off keying or DP-QPSK neighbors is demonstrated. The algorithm, which applies correlation phase adjustment embedded between digital differential demodulation and nonredundant error correction, leads to a significant performance improvement over standard algorithms.

Keywords

demodulation; differential phase shift keying; error correction; optical fibre communication; phase estimation; quadrature phase shift keying; wavelength division multiplexing; WDM DP-QPSK transmission; byte rate 111 GByte/s; byte rate 40 GByte/s; correlation-based carrier phase estimation; digital differential demodulation; dual-polarization quadrature phase-shift keying; frequency offset compensation; nonredundant error correction; Carrier phase estimation; coherent detection; cross-phase modulation (XPM); frequency offset compensation; optical fiber communication;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2008.2006761

Filename

4663577