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Proceedings Paper

Raman fiber amplifier with signal-to-noise ratio enhancement using second Stokes control pulses and effect of double Rayleigh back-scattering
Author(s): Nam Seong Kim; R. Mahendra Prabhu; Cheng Li; Jie Song; Deyuan Shen; Ken-ichi Ueda
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Paper Abstract

A novel idea to reduce the noise level in Raman fiber amplifiers is theoretically proposed with help of Ge-doped Raman fiber amplifier and second Stokes control pulses in temporal domain. By removing an inter-pulse noise power in signal pulses at the first Stokes' wavelength that is amplified a lot normally during an optical amplification, signal-to-noise ratio for signal pulses after amplification can be enhanced. The noise power removal is performed by transferring the noise power to the second Stokes' one using the stimulated Raman scattering. In addition, we discuss several kinds of second Stokes control pulses and the effect of double Rayleigh back-scattering.

Paper Details

Date Published: 3 April 2000
PDF: 6 pages
Proc. SPIE 3889, Advanced High-Power Lasers, (3 April 2000); doi: 10.1117/12.380934
Show Author Affiliations
Nam Seong Kim, Univ. of Electro-Communications (United States)
R. Mahendra Prabhu, Univ. of Electro-Communications (Japan)
Cheng Li, Univ. of Electro-Communications (Japan)
Jie Song, Univ. of Electro-Communications (Japan)
Deyuan Shen, Fukui Univ. (Singapore)
Ken-ichi Ueda, Univ. of Electro-Communications (Japan)

Published in SPIE Proceedings Vol. 3889:
Advanced High-Power Lasers
Marek Osinski; Howard T. Powell; Koichi Toyoda, Editor(s)

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