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Optical Engineering

Optimal design of ultrabroadband tellurite fiber Raman amplifier for wavelength-division multiplexing transmission systems
Author(s): Jing Ma; Chun Jiang; Jingquing Wu
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Paper Abstract

We present a complete analysis on improving the gain flatness of ultrabroadband tellurite fiber Raman amplifiers (TFRAs) by optimizing the parameters of multiwavelength pumps. Compared to conventional TFRAs, our amplifier has low gain ripple despite the ultrawide amplification bandwidth: well below 3.78% (5.66%, 11.98%) with respect to the average net gain 10 dB over a 120-nm (140-, 160-nm) bandwidth. In addition, we investigate the fractional gain contribution from each pump wavelength for the optimal 140-nm TFRA, and observe that the configuration is effective in equalizing the peculiar dual-peak gain spectra produced by multiple pumps. Finally, we calculate the noise figure for the 140-nm TFRA with a vibration less than 3 dB.

Paper Details

Date Published: 1 April 2008
PDF: 5 pages
Opt. Eng. 47(4) 045007 doi: 10.1117/1.2902420
Published in: Optical Engineering Volume 47, Issue 4
Show Author Affiliations
Jing Ma, Shanghai Jiao Tong Univ. (China)
Chun Jiang, Shanghai Jiao Tong Univ. (China)
Jingquing Wu, Shanghai Jiao Tong Univ. (China)

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