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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 25 — Dec. 7, 2009
  • pp: 22639–22658

Regenerative properties of interferometric all-optical DPSK wavelength converters

Jin Wang, Ayan Maitra, Wolfgang Freude, and Juerg Leuthold  »View Author Affiliations

Optics Express, Vol. 17, Issue 25, pp. 22639-22658 (2009)

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We discuss an all-optical DPSK wavelength conversion scheme comprising a delay-interferometer demodulation stage followed by a Mach-Zehnder interferometer, the arms of which are formed by nonlinear waveguides. If operated properly, the configuration shows regenerative behaviour. This is true for nonlinear waveguides with a dominant cross-gain nonlinearity (e. g., for an electro-absorption amplitude modulator) as well as for the case of a dominant cross-phase nonlinearity (e. g., for Kerr effect based phase modulator). In addition, we show that nonlinear materials exhibiting cross-gain modulation properties can provide a binary phase response so far only known from the transfer functions of digital electronics.

© 2009 OSA

OCIS Codes
(060.5060) Fiber optics and optical communications : Phase modulation
(250.5980) Optoelectronics : Semiconductor optical amplifiers

ToC Category:

Original Manuscript: August 28, 2009
Revised Manuscript: October 29, 2009
Manuscript Accepted: November 19, 2009
Published: November 25, 2009

Jin Wang, Ayan Maitra, Wolfgang Freude, and Juerg Leuthold, "Regenerative properties of interferometric
all-optical DPSK wavelength converters," Opt. Express 17, 22639-22658 (2009)

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