Amplification effect on stimulated Brillouin scattering in the S-band forward G652 fiber Raman amplifier

查看全文 作　　者：[1]张在宣;[1]戴碧智;[1]李来晓;[2]徐海峰;[3]刘红林;[3]王剑锋;[4]李晨霞;Insoo [5]S.Kim 机构地区：[1]Optoelectronics Technology Institute China Jiliang University Hangzhou 310018;[2]Optoelectronics Technology Institute China, Jiliang University Hangzhou 310018 College of Optics and Electronics, University of Shanghai for Science and Technology, Shanghai 200093;[3]Optoelectronics Technology Institute China Jiliaag University Hangzhou 310018;[4]Optoelectronics Technology Institute China Jiliang University Hangzhou 310018 College of Optics and Electronics, University of Shanghai for Science and Technology, Shanghai 200093;[5]Optical Technology Research Group Korea Electrotechnology Research Institute, Seoul 437-808, Korea 出　　处：《Chinese Optics Letters》索引2005年第3卷第11期,共4页 基　　金：This work was supported by the Great Scientific Research Project of Zhejiang Province (No. 021101558) the Ministry of Science and Technology, and a part of project funds of the Korea-China Optical Technology Research Center. 摘　　要：The amplification effects on forward and backward stimulated Brillouin scattering (SBS) lines in the forward pumped S-band distributed G652 fiber Raman amplifier (FRA) have been studied. There is a pump threshold power of Stokes backward stimulated Brillouin scattering (B-SBS) line in the forward pumped G652 FRA, it is about 1 mW. The Stokes B-SBS lines are amplified by FRA and fiber Brillouin Brillouin gain. In experimental work, the saturation gain of the first order Stokes backward SBS line is about 58 dB and the saturation gain of 25-km G652 forward FRA is about 25 dB, so the gain of FBA is about 33 dB. The forward stimulated Brillouin scattering (F-SBS) is generated and amplified in S-band G652 FRA. The stimulated threshold powers of the forward first order Stokes SBS (SB1-), second order Stokes SBS (SB2-), and third order SBS (SB3-) in the forward pumped FRA are 2.3, 1.6, and 1.6 mW,respectively. In experimental work, the saturation gains of SB1-, SB2-, and SB3- are about 38, 62, and 60 dB, respectively. The saturation Raman gain of 25-km G652 forward FRA is about 8.8 dB, so the Brillouin gains of SB1-, SB2-, and SB3- are about 29.2, 53.2, and 51.2 dB, respectively. The forward and backward cascaded SBS lines have been observed. 关 键 词：布里渊散射 扩大效应 G652光纤 RAMAN放大器 饱和状态