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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 25 — Dec. 10, 2007
  • pp: 17025–17031

All-optical M-ary ASK signal demultiplexer based on a photonic analog-to-digital conversion

Takashi Nishitani, Tsuyoshi Konishi, and Kazuyoshi Itoh  »View Author Affiliations

Optics Express, Vol. 15, Issue 25, pp. 17025-17031 (2007)

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An all-optical M-ary amplitude shift keying (ASK) signal demultiplexer is proposed and demonstrated. It allowed us to seamlessly demultiplex a high bit-rate optical M-ary ASK signal into on-off keying (OOK) signals without O/E conversion. It is composed of multilevel thresholding using self-frequency shift and OOK signal generation using optical interconnection. A level identification signal is provided as a result of multilevel thresholding and it is fed to an optical interconnection circuit which can generate corresponding OOK signals. We demonstrate the quadrature ASK signal demultiplexing at 100 Gsymbol/s and its error free operation at 10 Gb/s.

© 2007 Optical Society of America

OCIS Codes
(070.4340) Fourier optics and signal processing : Nonlinear optical signal processing
(190.4370) Nonlinear optics : Nonlinear optics, fibers
(320.7140) Ultrafast optics : Ultrafast processes in fibers

ToC Category:
Fourier optics and signal processing

Original Manuscript: October 2, 2007
Revised Manuscript: October 26, 2007
Manuscript Accepted: November 26, 2007
Published: December 5, 2007

Takashi Nishitani, Tsuyoshi Konishi, and Kazuyoshi Itoh, "All-optical M-ary ASK signal demultiplexer based on a photonic analog-to-digital conversion," Opt. Express 15, 17025-17031 (2007)

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