Abstract

In a recent paper by Kovalev et al [Optics Express 17, 17317 (2009)] the coupled equations describing stimulated Brillouin scattering (SBS) were solved in the Fourier domain. The main conclusion driven by the authors was that SBS pump spectral broadening was not effective in increasing the interaction bandwidth. While the calculations are essentially correct, the interpretation of the results leads to erroneous conclusions.

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References

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  1. L. Thévenaz, “Slow and fast light in optical fibers,” Nat. Photonics 2(8), 474–481 (2008).
    [CrossRef]
  2. M. González Herráez, K. Y. Song, and L. Thévenaz, “Arbitrary-bandwidth Brillouin slow light in optical fibers,” Opt. Express 14(4), 1395–1400 (2006), http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-4-1395 .
    [CrossRef] [PubMed]
  3. V. I. Kovalev, N. E. Kotova, and R. G. Harrison, ““Slow Light” in stimulated Brillouin scattering: on the influence of the spectral width of pump radiation on the group index,” Opt. Express 17(20), 17317–17323 (2009), http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-20-17317 .
    [CrossRef] [PubMed]
  4. E. Lichtman, R. G. Waarts, and A. A. Friesem, “Stimulated Brillouin scattering excited by a modulated pump wave in single-mode fibers,” J. Lightwave Technol. 7(1), 171–174 (1989).
    [CrossRef]
  5. V. I. Kovalev, N. E. Kotova, and R. G. Harrison, “Effect of acoustic wave inertia and its implication to slow light via stimulated Brillouin scattering in an extended medium,” Opt. Express 17(4), 2826–2833 (2009), http://www.opticsinfobase.org/abstract.cfm?URI=oe-17-4-2826 .
    [CrossRef] [PubMed]

2009 (2)

2008 (1)

L. Thévenaz, “Slow and fast light in optical fibers,” Nat. Photonics 2(8), 474–481 (2008).
[CrossRef]

2006 (1)

1989 (1)

E. Lichtman, R. G. Waarts, and A. A. Friesem, “Stimulated Brillouin scattering excited by a modulated pump wave in single-mode fibers,” J. Lightwave Technol. 7(1), 171–174 (1989).
[CrossRef]

Friesem, A. A.

E. Lichtman, R. G. Waarts, and A. A. Friesem, “Stimulated Brillouin scattering excited by a modulated pump wave in single-mode fibers,” J. Lightwave Technol. 7(1), 171–174 (1989).
[CrossRef]

González Herráez, M.

Harrison, R. G.

Kotova, N. E.

Kovalev, V. I.

Lichtman, E.

E. Lichtman, R. G. Waarts, and A. A. Friesem, “Stimulated Brillouin scattering excited by a modulated pump wave in single-mode fibers,” J. Lightwave Technol. 7(1), 171–174 (1989).
[CrossRef]

Song, K. Y.

Thévenaz, L.

Waarts, R. G.

E. Lichtman, R. G. Waarts, and A. A. Friesem, “Stimulated Brillouin scattering excited by a modulated pump wave in single-mode fibers,” J. Lightwave Technol. 7(1), 171–174 (1989).
[CrossRef]

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Equations (2)

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| E ˜ S ( z , ω ) | = | e i ω n c z [ E ˜ S ( 0 , ω ) + k S 2 n c ρ 0 z E ˜ P ( ω ) ρ * ( x , ω ) e i ω n c x d x ] |
Ω B = 2 V A c / n ω P

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