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Proceedings Paper

Experimental study of Raman amplification on stimulated Brillouin scattering in the G652 fibers at 1520nm
Author(s): Zaixuan Zhang; Bizhi Dai; Laixiao Li; Haifeng Xu; Dan Geng; Honglina Liu; Jianafeng Wang; Chenxia Li; Tiao Liu; Insoo S. Kim
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Paper Abstract

The forward and backward cascaded stimulated Brillouin scattering(SBS) in the backward pumped S band distributed G652 fiber Raman amplifier have been researched, pumped by the tunable power at 1428nm fiber Raman laser and signal source is a tunable power external cavity laser (ECL) with narrow spectral bandwidth (<100MHz). The threshold power of backward Stokes the first and second stimulated Brillouin scattering SB1- and SB2- in the backward pumped S band distributed fiber Raman amplifier is 5mW and 67.6mW, respectively. The Stokes stimulated Brillouin scattering lines is amplified by fiber Raman amplifier and fiber Brillouin amplifier. The total GA is production of the gain of Raman GR and the gain of Brillouin amplifier GB. GA=GR×GB. In experimental work, the saturation gain of SB1- and SB2- is about 50dB and 65dB respectively and the saturation gain of 25km G652 backward FRA is about 25dB, so the gain of backward fiber Brillouin amplifier SB1- and SB2- are about 25dB and 40dB, respectively. The forward SBS does not obey the common theory that only weakening backward-SBS lines existed, according to conservation of energy and momentum and wave vector selected rule. Because the wave-guide characters weaken the wave vector rule, but the forward transmit sound wave-guide forward Brillouin scattering lines are generated and amplified in S band G652 FRA. The stimulated threshold power of the forward first Stokes SBS (SB1- ) in the backward pumped FRA is 6.6mW. In experimental work, the saturation gain of SB1- is about 49dB and the saturation gain of 25km G652 backward FRA is about 10dB, so the gain of SB1- in the forward fiber Brillouin amplifier is about 39dB.

Paper Details

Date Published: 20 January 2006
PDF: 14 pages
Proc. SPIE 6027, ICO20: Optical Information Processing, 602742 (20 January 2006); doi: 10.1117/12.668393
Show Author Affiliations
Zaixuan Zhang, China Jiliang Univ. (China)
Bizhi Dai, China Jiliang Univ. (China)
Laixiao Li, China Jiliang Univ. (China)
Univ. of Shanghai for Science and Technology (China)
Haifeng Xu, China Jiliang Univ. (China)
Dan Geng, China Jiliang Univ. (China)
Univ. of Shanghai for Science and Technology (China)
Honglina Liu, China Jiliang Univ. (China)
Univ. of Shanghai for Science and Technology (China)
Jianafeng Wang, China Jiliang Univ. (China)
Chenxia Li, China Jiliang Univ. (China)
Tiao Liu, China Jiliang Univ. (China)
Insoo S. Kim, Korea Electrotechnology Research Institute (South Korea)


Published in SPIE Proceedings Vol. 6027:
ICO20: Optical Information Processing
Yunlong Sheng; Songlin Zhuang; Yimo Zhang, Editor(s)

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