Abstract

We develop a theoretical approach to describe stimulated Brillouin scattering (SBS) in Raman-pumped optical fibers. We derive the condition for the SBS threshold as a function of fiber parameters and the input power of forward and/or backward pump. A particular emphasis is given to the effect of the fiber length and unequal absorption coefficients for pump and signal wavelengths on the SBS threshold. Simple, yet accurate, analytical expressions for the SBS threshold in pumped fibers are also obtained. We show that in pumped fibers, the SBS threshold power is inversely proportional to the path-average integral of Raman gain. Validity ranges of derived formulas are considered in detail. The theoretical predictions are verified experimentally. The calculated values of the SBS threshold powers are in a good agreement with the measured threshold power in Raman-pumped dispersion-compensated fibers.

[IEEE ]

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  1. Y. Aoki, K. Tajima and I. Mito, "Input power limits of single-mode optical fibers due to stimulated Brillouin scattering in optical communication systems", J. Lightwave Technol., vol. 6, pp. 710-719, May 1988.
  2. D. A. Fishman and J. A. Nagel, "Degradations due to stimulated Brillouin scattering in multigigabit intensity-modulated fiber-optic systems", J. Lightwave Technol., vol. 11, pp. 1721-1728, Nov. 1993 .
  3. B. Foley, M. L. Dakss, R. W. Davies and P. Melman, "Gain saturation in fiber Raman amplifiers due to stimulated Brillouin scattering", J. Lightwave Technol., vol. 7, pp. 2024-2032, Dec. 1989.
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  5. K. Shiraki, M. Ohashi and M. Tateda, "SBS threshold of a fiber with a Brillouin frequency shift distribution", J. Lightwave Technol., vol. 14, pp. 50-57, Jan. 1996.
  6. M. F. Fereira, "Impact of stimulated Brillouin scattering in optical fibers with distributed gain", J. Lightwave Technol., vol. 13, pp. 1692-1697, Aug. 1995.
  7. M. O. Van Deventer and A. J. Boot, "Polarization properties of stimulated Brillouin scattering in single-mode fibers", J. Lightwave Technol., vol. 12, pp. 585-590, Apr. 1994.

Appl. Opt. (1)

J. Lightwave Technol. (6)

Y. Aoki, K. Tajima and I. Mito, "Input power limits of single-mode optical fibers due to stimulated Brillouin scattering in optical communication systems", J. Lightwave Technol., vol. 6, pp. 710-719, May 1988.

D. A. Fishman and J. A. Nagel, "Degradations due to stimulated Brillouin scattering in multigigabit intensity-modulated fiber-optic systems", J. Lightwave Technol., vol. 11, pp. 1721-1728, Nov. 1993 .

B. Foley, M. L. Dakss, R. W. Davies and P. Melman, "Gain saturation in fiber Raman amplifiers due to stimulated Brillouin scattering", J. Lightwave Technol., vol. 7, pp. 2024-2032, Dec. 1989.

K. Shiraki, M. Ohashi and M. Tateda, "SBS threshold of a fiber with a Brillouin frequency shift distribution", J. Lightwave Technol., vol. 14, pp. 50-57, Jan. 1996.

M. F. Fereira, "Impact of stimulated Brillouin scattering in optical fibers with distributed gain", J. Lightwave Technol., vol. 13, pp. 1692-1697, Aug. 1995.

M. O. Van Deventer and A. J. Boot, "Polarization properties of stimulated Brillouin scattering in single-mode fibers", J. Lightwave Technol., vol. 12, pp. 585-590, Apr. 1994.

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