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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 6 — Mar. 25, 2013
  • pp: 6718–6723

Single SOA based simultaneous amplitude regeneration for WDM-PDM RZ-PSK signals

Wenhan Wu, Yu Yu, Bingrong Zou, Weili Yang, and Xinliang Zhang  »View Author Affiliations


Optics Express, Vol. 21, Issue 6, pp. 6718-6723 (2013)
http://dx.doi.org/10.1364/OE.21.006718


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Abstract

We propose and demonstrate all-optical amplitude regeneration for the wavelength division multiplexing and polarization division multiplexing (WDM-PDM) return-to-zero phase shift keying (RZ-PSK) signals using a single semiconductor optical amplifier (SOA) and subsequent filtering. The regeneration is based on the cross phase modulation (XPM) effect in the saturated SOA and the subsequent narrow filtering. The spectrum of the distorted signal can be broadened due to the phase modulation induced by the synchronous optical clock signal. A narrow band pass filter is utilized to extract part of the broadened spectrum and remove the amplitude noise, while preserving the phase information. The working principle for multi-channel and polarization orthogonality preserving is analyzed. 4-channel dual polarization signals can be simultaneously amplitude regenerated without introducing wavelength and polarization demultiplexing. An average power penalty improvement of 1.75dB can be achieved for the WDM-PDM signals.

© 2013 OSA

OCIS Codes
(060.0060) Fiber optics and optical communications : Fiber optics and optical communications
(070.4560) Fourier optics and signal processing : Data processing by optical means
(230.1150) Optical devices : All-optical devices

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: November 28, 2012
Revised Manuscript: February 22, 2013
Manuscript Accepted: March 4, 2013
Published: March 11, 2013

Citation
Wenhan Wu, Yu Yu, Bingrong Zou, Weili Yang, and Xinliang Zhang, "Single SOA based simultaneous amplitude regeneration for WDM-PDM RZ-PSK signals," Opt. Express 21, 6718-6723 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-6-6718


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