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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 10 — May. 9, 2011
  • pp: 9445–9452

Novel synchronous DPSK optical regenerator based on a feed-forward based carrier extraction scheme

Selwan K. Ibrahim, Stylianos Sygletos, Danish Rafique, John A. O’Dowd, Ruwan Weerasuriya, and Andrew D. Ellis  »View Author Affiliations


Optics Express, Vol. 19, Issue 10, pp. 9445-9452 (2011)
http://dx.doi.org/10.1364/OE.19.009445


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Abstract

We experimentally demonstrate a novel synchronous 10.66Gbit/s DPSK OEO regenerator which uses a feed-forward carrier extraction scheme with an injection-locked laser to synchronize the regenerated signal wavelength to the incoming signal wavelength. After injection-locking, a low-cost DFB laser used at the regenerator exhibited the same linewidth characteristics as the narrow line-width transmitter laser. The phase regeneration properties of the regenerator were evaluated by emulating random Gaussian phase noise applied to the DPSK signal before the regenerator using a phase modulator driven by an arbitrary waveform generator. The overall performance was evaluated in terms of electrical eye-diagrams, BER measurements, and constellation diagrams.

© 2011 OSA

OCIS Codes
(060.2360) Fiber optics and optical communications : Fiber optics links and subsystems
(060.4510) Fiber optics and optical communications : Optical communications
(060.5060) Fiber optics and optical communications : Phase modulation

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: February 3, 2011
Revised Manuscript: March 23, 2011
Manuscript Accepted: March 25, 2011
Published: April 29, 2011

Citation
Selwan K. Ibrahim, Stylianos Sygletos, Danish Rafique, John A. O’Dowd, Ruwan Weerasuriya, and Andrew D. Ellis, "Novel synchronous DPSK optical regenerator based on a feed-forward based carrier extraction scheme," Opt. Express 19, 9445-9452 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-10-9445


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