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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 17 — Aug. 20, 2007
  • pp: 10814–10821

Simple technique to achieve fast light in gain regime using Brillouin scattering

Sanghoon Chin, Miguel Gonzalez-Herraez, and Luc Thévenaz  »View Author Affiliations

Optics Express, Vol. 15, Issue 17, pp. 10814-10821 (2007)

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We describe a novel technique based on stimulated Brillouin scattering for propagating fast light (signal advancement) with low distortion in optical fibers. The essence of the technique relies on the presence of two separate gain resonances in the Brillouin gain spectrum generated by cascading two different fiber segments showing distinct Brillouin shifts. It can be shown that in between these two gain spectra, a reduced group index can be obtained. To further optimize our results, we broadened the pump spectrum by introducing a modulation of the current driving the pump laser to achieve a delay-bandwidth product close to the optimum conditions. This scheme eliminates the need of an external optical modulator and offers the advantage of a much reduced signal distortion.

© 2007 Optical Society of America

OCIS Codes
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(290.5900) Scattering : Scattering, stimulated Brillouin
(350.5500) Other areas of optics : Propagation

ToC Category:
Slow and Fast Light

Original Manuscript: May 31, 2007
Revised Manuscript: August 7, 2007
Manuscript Accepted: August 8, 2007
Published: August 13, 2007

Sanghoon Chin, Miguel Gonzalez-Herraez, and Luc Thévenaz, "Simple technique to achieve fast light in gain regime using Brillouin scattering," Opt. Express 15, 10814-10821 (2007)

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