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Proceedings Paper

DQPSK for metro networks
Author(s): Andy Stark; Yu-Ting Hsueh; Steven Searcy; Cheng Liu; Alan McCurdy; Robert Lingle Jr.; Mark Filer; Sorin Tibuleac; G.-K. Chang; Stephen E. Ralph
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Paper Abstract

This paper investigates DQPSK transport using both simulation and experimental results from our 100G testbed. We examine 56 Gb/s single polarization (single-pol) RZ-DQPSK and 112 Gb/s polarization multiplexing (POL-MUX) RZDQPSK with 12 Gb/s OOK aggressor channels and a variety of dispersion management maps using AllWave® zero water peak (ZWP) fiber. Although a number of studies of 40 Gb/s line rates within 10 Gb/s networks have been reported, there has been little with respect to 28 Gbaud DQPSK formats. We quantify the OSNR penalty due to nonlinearities of these hybrid optical links. Using a nominal span loss of 22 dB and different span lengths while keeping the dispersion compensation per span constant and the loss per span constant allows a direct examination of the impact of the residual dispersion per span (RDPS) on the nonlinear penalty in the DQPSK channel. We vary compensation from 90% - 110% (of total dispersion) across 8 spans (-119 ps/nm - +153 ps/nm). We report the required OSNR to achieve a non-FEC BER of 10-4 versus RDPS for both single- and dual-polarization (dual-pol) RZ-DQPSK. Experimental data is validated against RSoft OptSim simulations.

Paper Details

Date Published: 22 January 2010
PDF: 8 pages
Proc. SPIE 7621, Optical Metro Networks and Short-Haul Systems II, 76210L (22 January 2010); doi: 10.1117/12.842548
Show Author Affiliations
Andy Stark, Georgia Institute of Technology (United States)
Yu-Ting Hsueh, Georgia Institute of Technology (United States)
Steven Searcy, Georgia Institute of Technology (United States)
Cheng Liu, Georgia Institute of Technology (United States)
Alan McCurdy, OFS (United States)
Robert Lingle Jr., OFS (United States)
Mark Filer, ADVA Optical Networking (United States)
Sorin Tibuleac, ADVA Optical Networking (United States)
G.-K. Chang, Georgia Institute of Technology (United States)
Stephen E. Ralph, Georgia Institute of Technology (United States)


Published in SPIE Proceedings Vol. 7621:
Optical Metro Networks and Short-Haul Systems II
Werner Weiershausen; Benjamin Dingel; Achyut Kumar Dutta; Atul K. Srivastava, Editor(s)

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