Joint-Polarization Carrier Phase Estimation for PS-QPSK Signals

Author

Alreesh, Saleem ; Fischer, Johannes Karl ; Nölle, Markus ; Schubert, Colja

Author_Institution

Inst. fur Telekommunikationssysteme, Tech. Univ. Berlin, Berlin, Germany

Volume

24

Issue

15

fYear

2012

Firstpage

1282

Lastpage

1284

Abstract

We investigate a carrier phase estimation algorithm for the polarization-switched quadrature phase-shift-keying modulation format. The algorithm, which is based on the conventional block M^th power feed-forward scheme, works jointly on both polarizations and shows a significant performance improvement compared with a polarization-independent scheme. We evaluate the tolerance to laser phase noise in numerical simulations and the tolerance to nonlinear distortions in single-channel and Nyquist wavelength-division-multiplexing transmission experiments over up to 17000 km of ultralarge-effective-area fiber.

Keywords

laser noise; optical communication; optical fibre polarisation; phase estimation; phase noise; quadrature phase shift keying; wavelength division multiplexing; Nyquist wavelength-division-multiplexing transmission; PS-QPSK signals; carrier phase estimation; laser phase noise; nonlinear distortions; numerical simulations; polarization-switched quadrature phase-shift-keying modulation; power feed-forward scheme; single-channel; ultralarge-effective-area fiber; Couplings; Optimized production technology; Phase noise; Phase shift keying; Q factor; Signal processing algorithms; Digital signal processing; optical fiber communication; phase noise; phase-shift-keying;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2012.2201933

Filename

6208815