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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 13, Iss. 11 — May. 30, 2005
  • pp: 4296–4302

Optical quantizing and coding for ultrafast A/D conversion using nonlinear fiber-optic switches based on Sagnac interferometer

Kensuke Ikeda, Jalil Mohammad Abdul, Shu Namiki, and Ken-ichi Kitayama  »View Author Affiliations

Optics Express, Vol. 13, Issue 11, pp. 4296-4302 (2005)

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We propose a novel optical quantizing and coding for ultrafast analog-to-digital (A/D) conversion using nonlinear optical switches based on Sagnac interferometer. The feasibility of a 3-bit A/D conversion at 10-Giga-sample-per-second (Gsps) is experimentally demonstrated. Multi-period transfer function of the Sagnac interferometer type nonlinear fiber-optic switch, which is a key to the quantizing and coding, is experimentally realized for the first time to the authors’ knowledge. The proposed optical quantizing and coding, combined with existing optical sampling techniques, will enable ultrafast photonic A/D conversion without high-speed electronics, potentially in the frequency region of well over a few hundred Gsps.

© 2005 Optical Society of America

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

ToC Category:
Research Papers

Original Manuscript: April 5, 2005
Revised Manuscript: May 17, 2005
Published: May 30, 2005

Kensuke Ikeda, Jalil Abdul, Shu Namiki, and Ken-ichi Kitayama, "Optical quantizing and coding for ultrafast A/D conversion using nonlinear fiber-optic switches based on Sagnac interferometer," Opt. Express 13, 4296-4302 (2005)

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