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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 23 — Nov. 18, 2013
  • pp: 28743–28750
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QPSK-to-2×BPSK wavelength and modulation format conversion through phase-sensitive four-wave mixing in a highly nonlinear optical fiber

Francesco Da Ros, Kjeld Dalgaard, Lei Lei, Jing Xu, and Christophe Peucheret  »View Author Affiliations


Optics Express, Vol. 21, Issue 23, pp. 28743-28750 (2013)
http://dx.doi.org/10.1364/OE.21.028743


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Abstract

A phase-sensitive four-wave mixing (FWM) scheme enabling the simultaneous conversion of the two orthogonal quadratures of an optical signal to different wavelengths is demonstrated for the first time under dynamic operation using a highly nonlinear optical fiber (HNLF) as the nonlinear medium. The scheme is first optimized with respect to the power levels and phases of the four phase-coherent pumps. The successful modulation and wavelength conversion of the two complex quadratures of a quadrature phase-shift keying (QPSK) signal to two binary phase-shift keying (BPSK) signals is then demonstrated experimentally with no power penalty at a bit-error-ratio (BER) of 10−9 compared to direct interferometric demodulation of the QPSK signal.

© 2013 Optical Society of America

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OCIS Codes
(060.5060) Fiber optics and optical communications : Phase modulation
(070.4340) Fourier optics and signal processing : Nonlinear optical signal processing
(190.4380) Nonlinear optics : Nonlinear optics, four-wave mixing

ToC Category:
Nonlinear Optics

History
Original Manuscript: August 14, 2013
Revised Manuscript: October 24, 2013
Manuscript Accepted: October 31, 2013
Published: November 14, 2013

Citation
Francesco Da Ros, Kjeld Dalgaard, Lei Lei, Jing Xu, and Christophe Peucheret, "QPSK-to-2×BPSK wavelength and modulation format conversion through phase-sensitive four-wave mixing in a highly nonlinear optical fiber," Opt. Express 21, 28743-28750 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-23-28743


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References

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