| 高功率掺镱光纤放大器中频率上转换发光现象的研究 |
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| 引用本文： | 孙鑫鹏,赵长明,杨苏辉.高功率掺镱光纤放大器中频率上转换发光现象的研究[J].光学学报,2008,28(8):1441-1444. |
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| 作者姓名： | 孙鑫鹏 赵长明 杨苏辉 |
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| 作者单位： | 北京理工大学信息科学技术学院光电工程系,北京,100081 |
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| 基金项目： | 国家部委预研项目(41302010107)资助课题 |
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| 摘 要： | 建立了半导体抽运的高功率掺镱双包层光纤放大器实验系统,对放大器中的频率上转换发光现象进行了理论和实验研究,分析认为实验中由光纤侧面和两端观测到的绿色荧光是处于激发态的Yb2 相互作用,同时湮没而产生的合作荧光.分别对光纤放大器信号端和抽运端输出的荧光谱进行了测量.将实验谱线与理论计算得到的合作发光谱进行了对比分析.研究了信号光和放大自发辐射对上转换发光的影响,根据速率方程推导出荧光强度与抽运功率之问的理论关系表达式,同时通过实验获得了荧光强度与抽运功率的关系曲线.
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| 关 键 词： | 光纤放大器 掺镱 频率上转换 合作荧光 |
| 收稿时间： | 2007/12/20 |
Frequency-Upconversion Luminescence in High-Power Yb3+-Doped Fiber Amplifier |
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| Sun Xinpeng,Zhao Changming,Yang Suhui.Frequency-Upconversion Luminescence in High-Power Yb3+-Doped Fiber Amplifier[J].Acta Optica Sinica,2008,28(8):1441-1444. |
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| Authors: | Sun Xinpeng Zhao Changming Yang Suhui |
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| Abstract: | Experimental system of high power Yb3+-doped double-clad fiber amplifier pumped by diode laser was set up. Frequency upconversion luminescence in this fiber amplifier has been studied theoretically and experimentally. Analysis shows that the green fluorescence at fiber side and ends is due to cooperative luminescence. The cooperative fluorescence spectrum from pump side and signal side of fiber has been measured and compared with theoretical spectrum. The influence of signal and amplified spontaneous emission on frequency upconversion fluorescence has been discussed. The relational expression between the fluorescence intensity and pump power was described theoretically based on the rate equation and the relational curve was obtained by experiment. |
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| Keywords: | fiber amplifier Yb3+doped frequency upconversion cooperative fluorescence |
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