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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 19 — Sep. 18, 2006
  • pp: 8498–8505

Extended delay of broadband signals in stimulated Brillouin scattering slow light using synthesized pump chirp

Avi Zadok, Avishay Eyal, and Moshe Tur  »View Author Affiliations


Optics Express, Vol. 14, Issue 19, pp. 8498-8505 (2006)
http://dx.doi.org/10.1364/OE.14.008498


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Abstract

Judicious chirping of a directly modulated pump laser is used to broaden the intrinsic linewidth of stimulated Brillouin scattering in an optical fiber. The modulation waveform is designed to obtain a spectrum with sharp edges, resulting in phase gradients stronger that those obtained for random pump modulation. The gain and phase frequency response of the slow light process are measured by a vector network analyzer, and the delays obtained for our tailored modulation are compared with the case of random direct modulation. For equal pump powers and gain bandwidths (FWHM), the tailored modulation waveform introduces 30–40% longer delays. Using this technique, pseudo random bit sequences of 5 Gb/s were successfully delayed by up to 120 ps (BER<10-5) and 80 ps (BER<10-9).

© 2006 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:
Fiber Optics and Optical Communications

History
Original Manuscript: July 21, 2006
Revised Manuscript: August 24, 2006
Manuscript Accepted: August 29, 2006
Published: September 18, 2006

Citation
Avi Zadok, Avishay Eyal, and Moshe Tur, "Extended delay of broadband signals in stimulated Brillouin scattering slow light using synthesized pump chirp," Opt. Express 14, 8498-8505 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-19-8498


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