100-Gb/s DQPSK Transmission: From Laboratory Experiments to Field Trials

We discuss the generation, detection, and long-haul transmission of single-polarization differential quadrature phase shift keying (DQPSK) signals at a line rate of 53.5 Gbaud to support a net information bit rate of 100 Gb/s. In the laboratory, we demonstrate 10-channel wavelength-division multiple...

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Bibliographic Details
Published in:Journal of lightwave technology 2008-10, Vol.26 (20), p.3388-3402
Main Authors: Winzer, P.J., Raybon, G., Haoyu Song, Adamiecki, A., Corteselli, S., Gnauck, A.H., Fishman, D.A., Doerr, C.R., Chandrasekhar, S., Buhl, L.L., Xia, T.J., Wellbrock, G., Lee, W., Basch, B., Kawanishi, T., Higuma, K., Painchaud, Y.
Format: Article
Language:English
Subjects:
100G Ethernet
Add-drop multiplexers
Bit rate
Computer programs
Differential quadrature phase shift keying
Encoding
Field programmable gate arrays
Laboratories
Multiplexing
Noise levels
Optical add-drop multiplexers
Optical fiber networks
optical networking
Phase detection
phase modulation
Quadrature phase shift keying
Signal generators
Traffic engineering
Traffic flow
transmission
Wavelength division multiplexing
wavelength-division multiplexing (WDM)
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Summary:We discuss the generation, detection, and long-haul transmission of single-polarization differential quadrature phase shift keying (DQPSK) signals at a line rate of 53.5 Gbaud to support a net information bit rate of 100 Gb/s. In the laboratory, we demonstrate 10-channel wavelength-division multiplexed (WDM) point-to-point transmission over 2000 km on a 150-GHz WDM grid, and 1200-km optically routed networking including 6 reconfigurable optical add/drop multiplexers (ROADMs) on a 100-GHz grid. We then report transmission over the commercial, 50-GHz spaced long-haul optical transport platform LambdaXtreme reg . In a straight-line laboratory testbed, we demonstrate single-channel 700-km transmission, including an intermediate ROADM. On a field-deployed, live traffic bearing Verizon installation between Tampa and Miami, Florida, we achieve 500-km transmission, with no changes to the commercial system hardware or software and with 6 dB system margin. On the same operational system, we finally demonstrate 100-Gb/s DQPSK encoding on a field-programmable gate array (FPGA) and the transmission of real-time video traffic.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2008.925710