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Journal article

High phase noise tolerant pilot-tone-aided DP-QPSK optical communication systems

By Zhang, Xu1,2; Pang, Xiaodan1,2,3; Deng, Lei2; Zibar, Darko1,2; Tafur Monroy, Idelfonso1,2; Younce, Richard4

From

Department of Photonics Engineering, Technical University of Denmark1

Metro-Access and Short Range Systems, Department of Photonics Engineering, Technical University of Denmark2

Coding and Visual Communication, Department of Photonics Engineering, Technical University of Denmark3

Tellabs Inc.4

In this paper we experimentally demonstrate a novel, high phase-noise tolerant, optical dual polarization (DP) quadrature phase-shift keying (QPSK) communication system based on pilot-tone-aided phase noise cancellation (PNC) algorithm. Vertical cavity surface emitting lasers (VCSELs) with approximate 300 MHz linewidth are used as transmitters and local oscillators for coherent detection of optical DP-QPSK signals.

The proposed system, with central wavelength at 1540.68 nm, operates at 40 Gb/s over 80 km single mode fiber (SMF) as part of a passive optical network (PON). The deployment of pilot-tone-aided PNC algorithm guarantees a bit error rate (BER) performance below the forward error correction (FEC) threshold.

Moreover, we also evaluate a novel digital signal processing (DSP) algorithm for adaptive pilot tone detection.

Language: English
Year: 2012
Pages: 19990-19995
ISSN: 10944087
Types: Journal article
DOI: 10.1364/OE.20.019990
ORCIDs: Zibar, Darko and Tafur Monroy, Idelfonso
Keywords

Algorithms Computer Communication Networks Computer-Aided Design Equipment Design Equipment Failure Analysis Lasers Signal Processing, Computer-Assisted Signal-To-Noise Ratio Telecommunications

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