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Threshold level and gain of forward stimulated Brillouin scattering in a forward pumped s-band discrete DCF fibers Raman amplifier
Authors:Jian-feng Wang  ZhangZai-xuan  Bi-zhi Dai  Chen-xia Li and Kim Insoo S
Affiliation:(1) Optoelectronics Technology Institute, China Jiliang University, 310018 Hangzhou, China;(2) College of Optical and Electronics, University of Shanghai for Science and Technology, 200093 Shanghai, China;(3) Optical Technology Research Group, Korea Electrotechnology Research Institute, 437-808 Seoul, Korea
Abstract:Amplification effect of forward stimulated Brillouin scattering (SBS) lines on the forward pumped s-band discrete DCF fiber Raman amplifier (FRA) has been studied. Pump threshold power of the forward first order Stokes SBS (FSB1-), second order Stokes SBS (FSB2-) and third order SBS (FSB3-) in the forward pumped FRA are 1.5 mW, 1.4 mW and 1.7 mW, respectively. The Stokes SBS lines are amplified by FRA and fiber Brillouin amplifier (FBA) at the same time. Gain of amplification is given as GA=GR · GB, where GR is Raman gain and GB is Brillouin gain. Saturation gain of FSB1-, FSB2- and FSB3- are about 52 dB, 65 dB and 65 dB, respectively. The saturation Raman gain of 10 km DCF forward FRA is about 14 dB, so Brillouin gain of FSB1-, FSB2- and FSB3- are about 38 dB, 51 dB and 51 dB, respectively. The forward cascaded SBS lines have been observed. Supported by the Great Scientific Research Project of Zhejiang Province, P. R. China under Grant No. 021101558
Keywords:CLC number" target="_blank">CLC number  TN929  11
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