| 后向泵浦高功率掺镱光纤放大器的非弹性散射效应 |
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| 引用本文： | 冯杰, 周晓军, 张旨遥, 等. 后向泵浦高功率掺镱光纤放大器的非弹性散射效应[J]. 强激光与粒子束, 2009, 21(08). |
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| 作者姓名： | 冯杰 周晓军 张旨遥 秦祖军 刘永 |
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| 作者单位： | 1.电子科技大学 光电信息学院, 成都 61 0054;;;2.宽带光纤传输与通信网技术教育部重点实验室, 成都 61 0054 |
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| 摘 要： | 在考虑受激布里渊散射和受激喇曼散射效应的基础上，数值求解了双包层掺镱光纤放大器的速率-传输方程，分析了后向泵浦高功率掺镱光纤放大器在不同信号光线宽、光纤长度和纤芯直径下的输出特性，研究了受激布里渊散射和受激喇曼散射的抑制条件。计算结果表明:在后向泵浦方式下，若掺镱光纤长度小于0.68 m,纤芯直径大于26 μm,信号光线宽大于0.04 nm，则放大过程中的受激布里渊散射和受激喇曼散射能同时得到有效抑制。
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| 关 键 词： | 掺镱光纤放大器 后向泵浦 受激布里渊散射 受激喇曼散射 高功率 |
Inelastic scatterings in high-power back-pumped ytterbium-doped double-clad fiber amplifiers |
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| feng jie, zhou xiaojun, zhang zhiyao, et al. Inelastic scatterings in high-power back-pumped ytterbium-doped double-clad fiber amplifiers[J]. High Power Laser and Particle Beams, 2009, 21. |
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| Authors: | feng jie zhou xiaojun zhang zhiyao qin zujun liu yong |
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| Affiliation: | 1. School of Optoelectronic Information,University of Electronic Science and Technology of China,Chengdu 610054,China;;;2. Key Laboratory of Broadband Optical Fiber Transmission and Communication Networks,Ministry of Education,Chengdu 610054,China |
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| Abstract: | Based on the numerical modeling including stimulated Brillouin scattering and stimulated Raman scattering, the propagation-rate equations of ytterbium-doped double-clad fiber amplifiers are solved. The output characteristics of the high-power backward-pumped ytterbium-doped double-clad fiber amplifiers are studied at different signal linewidths, fiber lengths and fiber-core diameters. The methods of suppressing the stimulated Brillouin scattering and stimulated Raman scattering are also investigated. Calculated results show that the two-scatterings can be suppressed simultaneously by using an ytterbium-doped fiber with the length shorter than 0.68 m and the fiber-core diameter larger than 26 μm, or broadening the signal linewidth to more than 0.04 nm. |
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| Keywords: | ytterbium-doped fiber amplifier backward pump stimulated brillouin scattering stimulated raman scattering high power |
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