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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 25, Iss. 1 — Jan. 1, 2007
  • pp: 201–206

Broadband SBS Slow Light in an Optical Fiber

Zhaoming Zhu, Andrew M. C. Dawes, Daniel J. Gauthier, Lin Zhang, and Alan E. Willner

Journal of Lightwave Technology, Vol. 25, Issue 1, pp. 201-206 (2007)


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Abstract

In this paper, we investigate slow light via stimulated Brillouin scattering (SBS) in a room temperature optical fiber that is pumped by a spectrally broadened laser. Broadening the spectrum of the pump field increases the linewidth ΔωP of the Stokes amplifying resonance, thereby increasing the slow-light bandwidth. One physical bandwidth limitation occurs when the linewidth becomes several times larger than the Brillouin frequency shift ΩB so that the anti-Stokes absorbing resonance substantially cancels out the Stokes amplifying resonance and, hence, the slow-light effect. We find that partial overlap of the Stokes and anti-Stokes resonances can actually lead to an enhancement of the slow-light delay-bandwidth product when ΔωP ~ or = 1.3 ΩB. Using this general approach, we increase the Brillouin slow-light bandwidth to over 12 GHz from its nominal linewidth of ~30 MHz obtained for monochromatic pumping. We controllably delay 75-ps-long pulses by up to 47 ps and study the data-pattern dependence of the broadband SBS slow-light system.

© 2007 IEEE

Citation
Zhaoming Zhu, Andrew M. C. Dawes, Daniel J. Gauthier, Lin Zhang, and Alan E. Willner, "Broadband SBS Slow Light in an Optical Fiber," J. Lightwave Technol. 25, 201-206 (2007)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-25-1-201

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