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Proceedings Paper

Performance of 32-Gbaud PDM-QPSK in nonlinear transport regimes with different phase recovery methods
Author(s): Andrew Stark; Yu-Ting Hsueh; Thomas Detwiler; Cheng Liu; Kedar Mehta; Mark Filer; Sorin Tibuleac; Gee-Kung Chang; Stephen E. Ralph
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Paper Abstract

We experimentally investigate the performance of WDM coherent polarization-division multiplexed-return to zero-quadrature phase shift keying (PDM-RZ-QPSK) network in nonlinear transport regimes. Seven, 28 or 32-Gbaud PDM-RZ- QPSK channels are employed on a 50-GHz grid and transmitted over 1600-km fiber on an all-EDFA recirculating loop without any dispersion compensation module (DCM). The transmission link is configured entirely of either standard single-mode fiber (AllWave), medium dispersion fiber (TrueWave REACH), or ultra-large area fiber (ULAF). We sweep the launch power of the center channel and side channels together to measure the nonlinear effects of self-phase modulation (SPM), cross-phase modulation (XPM), and cross-polarization modulation (XPolM) on the center channel's BER performance. Furthermore, for all link configurations, we employ three different carrier phase recovery methods in the demodulation routine - Viterbi-Viterbi, Viterbi-Viterbi with a minimum mean-squared error (MMSE) filter, and the Optametra/Tektronix Weiner filter - to ascertain their relative performance in the presence of nonlinear effects.

Paper Details

Date Published: 25 January 2012
PDF: 7 pages
Proc. SPIE 8284, Next-Generation Optical Communication: Components, Sub-Systems, and Systems, 82840B (25 January 2012); doi: 10.1117/12.909907
Show Author Affiliations
Andrew Stark, Georgia Institute of Technology (United States)
Yu-Ting Hsueh, Georgia Institute of Technology (United States)
Thomas Detwiler, Georgia Institute of Technology (United States)
Cheng Liu, Georgia Institute of Technology (United States)
Kedar Mehta, Georgia Institute of Technology (United States)
Mark Filer, ADVA Optical Networking North America, Inc. (United States)
Sorin Tibuleac, ADVA Optical Networking North America, Inc. (United States)
Gee-Kung Chang, Georgia Institute of Technology (United States)
Stephen E. Ralph, Georgia Institute of Technology (United States)


Published in SPIE Proceedings Vol. 8284:
Next-Generation Optical Communication: Components, Sub-Systems, and Systems
Guifang Li; Dieter Stefan Jäger, Editor(s)

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