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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 22 — Nov. 4, 2013
  • pp: 25944–25953

Parametric amplification and phase preserving amplitude regeneration of a 640 Gbit/s RZ-DPSK signal

Zohreh Lali-Dastjerdi, Michael Galili, Hans Christian Hansen Mulvad, Hao Hu, Leif Katsuo Oxenløwe, Karsten Rottwitt, and Christophe Peucheret  »View Author Affiliations


Optics Express, Vol. 21, Issue 22, pp. 25944-25953 (2013)
http://dx.doi.org/10.1364/OE.21.025944


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Abstract

We report the first experimental demonstration of parametric amplification and all-optical phase-preserving amplitude regeneration for a 640 Gbit/s return-to-zero (RZ) differential phase-shift keying (DPSK) optical time division multiplexed (OTDM) signal. In the designed gain-flattened single-pump fiber optical parametric amplifier (FOPA), 620 fs short optical pulses are successfully amplified with 15 dB gain with error-free performance and less than 1 dB power penalty. Phase-preserving amplitude regeneration based on gain saturation in the FOPA is carried out for optical signals with degraded optical signal-to-noise ratio. An improvement of 2.2 dB in receiver sensitivity at a bit-error-ratio of 10−9 has been successfully achieved after regeneration, together with 13.3 dB net gain.

© 2013 OSA

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(190.4410) Nonlinear optics : Nonlinear optics, parametric processes
(190.4970) Nonlinear optics : Parametric oscillators and amplifiers

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: August 5, 2013
Revised Manuscript: October 15, 2013
Manuscript Accepted: October 16, 2013
Published: October 23, 2013

Citation
Zohreh Lali-Dastjerdi, Michael Galili, Hans Christian Hansen Mulvad, Hao Hu, Leif Katsuo Oxenløwe, Karsten Rottwitt, and Christophe Peucheret, "Parametric amplification and phase preserving amplitude regeneration of a 640 Gbit/s RZ-DPSK signal," Opt. Express 21, 25944-25953 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-22-25944


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