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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Vol. 25, Iss. 12 — Dec. 1, 2008
  • pp: 3059–3066

Design of a flat-gain multipumped distributed fiber Raman amplifier by particle swarm optimization

Alireza Mowla and Nosrat Granpayeh  »View Author Affiliations

JOSA A, Vol. 25, Issue 12, pp. 3059-3066 (2008)

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The pumping scheme of multipumped distributed fiber Raman amplifiers is optimized by a powerful method called particle swarm optimization. By use of particle swarm optimization, we optimize both pump powers and frequencies of multipumped Raman amplifiers with a high number of pumps. Particle swarm optimization is a fast and effective method, and it surpasses other optimization methods, such as the genetic algorithm, for optimizing fiber amplifiers. It is shown that the computational efficiency of particle swarm optimization is significantly better than that of the genetic algorithm, reducing the time of computation to one third, and its implementation is more straightforward. A gain bandwidth of 92.1 nm and a gain variation of 0.49 dB in the range of 1524.5 1616.6 nm are obtained by this method, using ten backward pumps in a 60 - km -long amplifier. The gain variation reduction is due to the inclusion of pump frequencies in the optimization process.

© 2008 Optical Society of America

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators

ToC Category:
Fiber Optics and Optical Communications

Original Manuscript: July 17, 2008
Revised Manuscript: October 11, 2008
Manuscript Accepted: October 16, 2008
Published: November 21, 2008

Alireza Mowla and Nosrat Granpayeh, "Design of a flat-gain multipumped distributed fiber Raman amplifier by particle swarm optimization," J. Opt. Soc. Am. A 25, 3059-3066 (2008)

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