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Journal of the Optical Society of Korea

Journal of the Optical Society of Korea


  • Vol. 8, Iss. 4 — Dec. 25, 2004
  • pp: 156–162

Spectroscopic Analysis of Gain Bandwidth in Raman Amplifier with Multiwavelength Pumping Scheme Using Actual Band Model

Georgii Felinskyi, Young-Geun Han, and Sang-Bae Lee  »View Author Affiliations

Journal of the Optical Society of Korea, Vol. 8, Issue 4, pp. 156-162 (2004)

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The spectroscopic model is proposed to analyze the gain bandwidth of a fiber Raman amplifier (FRA) with a multiple wavelength pumping scheme based on Raman gain theory. The oscillatory lineshape, which is the analytic function to analyze Raman gain spectra, allows us to estimate the gain bandwidth of the FRA. Based on the proposed theoretical modeling, we design and analyze the characteristics of the FRA using the combined multiwavelength pumping sources. We achieved the extended gain bandwidth of the FRA over 80 nm with the small gain ripple less than 0.5 dB. Threshold pumping power and effective noise figure for the FRA can be also analyzed by using the proposed model, which is also applicable for versatile fibers with other doping materials. The proposed analysis method can be useful for the design of FRA with the multiwavelength pumping scheme.

© 2004 Optical Society of Korea

OCIS Codes
(060.2320) Fiber optics and optical communications : Fiber optics amplifiers and oscillators
(170.5660) Medical optics and biotechnology : Raman spectroscopy

Original Manuscript: January 9, 2004
Published: December 1, 2004

Georgii Felinskyi, Young-Geun Han, and Sang-Bae Lee, "Spectroscopic Analysis of Gain Bandwidth in Raman Amplifier with Multiwavelength Pumping Scheme Using Actual Band Model," J. Opt. Soc. Korea 8, 156-162 (2004)

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