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Journal of Optical Communications and Networking

Journal of Optical Communications and Networking

  • Editors: K. Bergman and O. Gerstel
  • Vol. 6, Iss. 3 — Mar. 1, 2014
  • pp: 282–290

Performance of a Semi-Nyquist NRZ-DQPSK System Employing a Flexible Gain-Switched Multicarrier Transmitter

Vidak Vujicic, Rui Zhou, Prince M. Anandarajah, John O’Carroll, and Liam P. Barry  »View Author Affiliations


Journal of Optical Communications and Networking, Vol. 6, Issue 3, pp. 282-290 (2014)
http://dx.doi.org/10.1364/JOCN.6.000282


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Abstract

The authors report on a strongly filtered direct detected non-return-to-zero differential quadrature phase shift keying (NRZ-DQPSK) system, based on a multicarrier transmitter with a tunable free spectral range. Transmission of a 7×21.4  Gb/s multichannel NRZ-DQPSK signal over a dispersion compensated optical link (legacy optical infrastructure) on a 15 GHz grid is investigated experimentally and by simulations. Further improvement of the spectral efficiency is demonstrated by simulating the same 7×21.4  Gb/s system on a 12.5 GHz grid. Finally, the scalability of the proposed system is investigated by simulating the transmission of a Tb superchannel, composed of a 10-carrier polarization division multiplexed NRZ-DQPSK operating at 28 GBaud on 33 GHz channel spacing, over 320 km standard single-mode fiber.

© 2014 Optical Society of America

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.2360) Fiber optics and optical communications : Fiber optics links and subsystems
(140.3520) Lasers and laser optics : Lasers, injection-locked

ToC Category:
Research Papers

History
Original Manuscript: October 21, 2013
Revised Manuscript: January 17, 2014
Manuscript Accepted: January 18, 2014
Published: February 20, 2014

Citation
Vidak Vujicic, Rui Zhou, Prince M. Anandarajah, John O’Carroll, and Liam P. Barry, "Performance of a Semi-Nyquist NRZ-DQPSK System Employing a Flexible Gain-Switched Multicarrier Transmitter," J. Opt. Commun. Netw. 6, 282-290 (2014)
http://www.opticsinfobase.org/jocn/abstract.cfm?URI=jocn-6-3-282

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