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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 15 — Jul. 18, 2011
  • pp: 14720–14725

All-optical parallel NRZ-DPSK to RZ-DPSK format conversion at 40 Gb/s based on XPM effect in a single SOA

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


Optics Express, Vol. 19, Issue 15, pp. 14720-14725 (2011)
http://dx.doi.org/10.1364/OE.19.014720


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Abstract

We propose and demonstrate multi-channel parallel format conversions from the non return-to-zero differential phase shift keying (NRZ-DPSK) to the return-to-zero DPSK (RZ-DPSK) using a single semiconductor optical amplifier (SOA). The simultaneous conversions are based on the cross phase modulation (XPM) effect, which is induced by a synchronous optical clock signal with high input power. The XPM adds an identical phase shift onto every input bit, resulting in the phase difference unchanged. The input spectra are broadened and a subsequent filter is utilized to extract the specific part to form a RZ pulse. 6-channel NRZ-DPSK signals at 40 Gb/s can be converted to the corresponding RZ-DPSK signals with ~-0.8 to −1 dB power penalty for all the channels.

© 2011 OSA

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(060.4080) Fiber optics and optical communications : Modulation
(070.4560) Fourier optics and signal processing : Data processing by optical means

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: May 24, 2011
Revised Manuscript: June 27, 2011
Manuscript Accepted: June 28, 2011
Published: July 15, 2011

Citation
Yu Yu, Bingrong Zou, Wenhan Wu, and Xinliang Zhang, "All-optical parallel NRZ-DPSK to RZ-DPSK format conversion at 40 Gb/s based on XPM effect in a single SOA," Opt. Express 19, 14720-14725 (2011)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-19-15-14720


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References

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