| 脉冲光布里渊散射信号的拉曼放大研究 |
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| 引用本文： | 龚华平,李小瑞,李书华,王剑锋,张在宣.脉冲光布里渊散射信号的拉曼放大研究[J].光电子．激光,2012(2):260-265. |
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| 作者姓名： | 龚华平 李小瑞 李书华 王剑锋 张在宣 |
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| 作者单位： | 中国计量学院光电子技术研究所;中国计量学院光电子技术研究所;中国计量学院光电子技术研究所;中国计量学院光电子技术研究所;中国计量学院光电子技术研究所 |
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| 基金项目： | 浙江省自然科学基金(Y5090150,Y1110687)资助项目 |
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| 摘 要： | 实验研究了前向拉曼泵浦方式下脉冲信号光产生的自发布里渊散射信号和受激布里渊散射(SBS)信号的拉曼放大规律。拉曼泵浦放大自发布里渊散射信号时,随泵浦功率增大会出现SBS现象,对散射信号的放大由拉曼放大和布里渊放大两部分引起,因此增益较大,当拉曼泵浦功率为1 000 mW时Stokes光增益可达54 dB。拉曼泵浦放大SBS信号时,放大过程中只存在拉曼放大。且当泵浦功率增大至600 mW时,会引起多级布里渊散射,致使一级Stokes和泵浦能量会转移到下一级布里渊散射,一级Stokes光增益饱和并下降。
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| 关 键 词： | 拉曼放大 自发布里渊散射 受激布里渊散射(SBS) |
Experimental research on Raman amplification of pulse light Brillouin scattering signal |
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| GONG Hua-ping,LI Xiao-rui,LI Shu-hu,WANG Jian-feng and ZHANG Zai-xuan.Experimental research on Raman amplification of pulse light Brillouin scattering signal[J].Journal of Optoelectronics·laser,2012(2):260-265. |
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| Authors: | GONG Hua-ping LI Xiao-rui LI Shu-hu WANG Jian-feng and ZHANG Zai-xuan |
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| Affiliation: | Institute of Optoelectronic Technology,China Jiliang University,Hangzhou 310018,China;Institute of Optoelectronic Technology,China Jiliang University,Hangzhou 310018,China;Institute of Optoelectronic Technology,China Jiliang University,Hangzhou 310018,China;Institute of Optoelectronic Technology,China Jiliang University,Hangzhou 310018,China;Institute of Optoelectronic Technology,China Jiliang University,Hangzhou 310018,China |
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| Abstract: | The influence of forward Raman amplification on the Brillouin scattering signal of pulse light is investigated by experiments,including the spontaneous Brillouin scattering and the stimulated Brillouin scattering(SBS).The results show that the spontaneous Brillouin scattering is amplified by the fiber Raman amplifier and the fiber Brillouin amplifier,and consequently the gain is high.For the amplification of SBS signal,it is only amplified by the Raman amplifier in the fiber.As the Raman pump power reaches 600 mW,it causes the multi-order Brillouin scattering,and then the gain of the first order Stokes SBS starts to saturate and decline. |
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| Keywords: | Raman amplification spontaneous Brillouin scattering stimulated Brillouin scattering(SBS) |
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