| 超宽带Er,Tm共掺石英光纤放大器稳态研究 |
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| 引用本文： | 郑光威,赵尚弘,李玉江,胥杰,张虎,樊国丽,杨庆华. 超宽带Er,Tm共掺石英光纤放大器稳态研究[J]. 激光技术, 2006, 30(2): 198-201 |
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| 作者姓名： | 郑光威 赵尚弘 李玉江 胥杰 张虎 樊国丽 杨庆华 |
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| 作者单位： | 空军工程大学,电讯工程学院,西安,710077;空军工程大学,电讯工程学院,西安,710077;空军工程大学,电讯工程学院,西安,710077;空军工程大学,电讯工程学院,西安,710077;空军工程大学,电讯工程学院,西安,710077;空军工程大学,电讯工程学院,西安,710077;空军工程大学,电讯工程学院,西安,710077 |
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| 摘 要： | 分析了波长为980nm激光抽运下的Er3+,Tm3+共掺石英光纤放大器的工作原理,并根据此工作原理,建立了Er3+与Tm3+之间能量转移过程的数学模型。基于速率方程和功率传输方程,数值模拟了此种光纤放大器稳态工作特性,给出了不同光纤长度、不同输入抽运功率以及不同掺Tm3+浓度下多路光信号放大时输出信号功率谱的变化规律。仿真结果表明,当输入抽运功率为400mW时,Er,Tm共掺石英光纤放大器的3dB带宽可达90nm(比传统掺Er3+光纤放大器的增益带宽大两倍以上),平均增益可达10dB,可用于未来密集复用系统(DWDM)中的宽带放大器件。
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| 关 键 词： | 光纤光学 Er Tm共掺石英光纤放大器 速率方程和功率传输方程 密集波分复用(DWDM) |
| 文章编号： | 1001-3806(2006)02-0198-04 |
| 收稿时间： | 2005-03-13 |
| 修稿时间： | 2005-04-20 |
Analysis of steady state operation of ultra-wide band Er, Tm co-doped silica fiber amplifier |
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| ZHENG Guang-wei,ZHAO Shang-hong,LI Yu-jiang,XU Jie,ZHANG Hu,FAN Guo-li,YANG Qing-hua. Analysis of steady state operation of ultra-wide band Er, Tm co-doped silica fiber amplifier[J]. Laser Technology, 2006, 30(2): 198-201 |
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| Authors: | ZHENG Guang-wei ZHAO Shang-hong LI Yu-jiang XU Jie ZHANG Hu FAN Guo-li YANG Qing-hua |
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| Abstract: | The operation principal of Er~(3 ),Tm~(3 ) co-doped silica fiber amplifier is presented when pumped at 980nm.Depending on the principal,the mathematical model of energy transfer process between Er~(3 ) and Tm~(3 ) ions is established.Based on the rate and propagation equations,numerical simulation of its steady state operation properties is performed and the simulation of output power spectrum of several channel signals as a function of different factors,(such as different fiber length,different pump power,and different Tm~(3 ) ions concentration) is also given.The simulation results show that the amplifying bandwidth of this fiber is up to 90nm(twice larger than the traditional Er-doped fiber amplifier) and the average gain is up to 10dB when the pump power is just 400mW.Its characteristic of ultra-wide band amplifying is useful for DWDM in the near future. |
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| Keywords: | fiber optics Er Tm co-doped silica fiber amplifier rate equations and propagation equations dense wavelength division multiplexing(DWDM) |
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