| Er3+-Yb3+共掺磷酸盐玻璃放大器的大信号增益与量子效率理论分析 |
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| 引用本文： | 陈海燕,戴基智,杨亚培,刘永智. Er3+-Yb3+共掺磷酸盐玻璃放大器的大信号增益与量子效率理论分析[J]. 光学学报, 2004, 24(3): 51-355 |
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| 作者姓名： | 陈海燕 戴基智 杨亚培 刘永智 |
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| 作者单位： | 1. 电子科技大学光电信息学院,宽带光纤传输与通信系统技术重点实验室,成都,610054;江汉石油学院理学院,荆州,434023
2. 电子科技大学光电信息学院,宽带光纤传输与通信系统技术重点实验室,成都,610054 |
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| 基金项目： | 国防预研基金 (5 14 0 2 0 4 0 30 3DZ0 2 )资助课题 |
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| 摘 要： | 研究大信号工作状态下的Er^3 -Yb^3 共掺磷酸盐玻璃波导放大器的增益与量子转换效率。从量子转换效率的定义出发，得出了增益、抽运光功率以及量子转换效率三者之间关系的解析表达式。通过数值求解大信号工作状态下的Er^3 -Yb^3 共掺系统的速率方程与光功率传输方程，讨论了Er^3 浓度、Yb^3 浓度、Yb^3 与Er^3 浓度比率、抽运光功率以及放大器长度等因素对量子转换效率的影响。结果表明提高Er^3 浓度与增加放大器长度均有助于提高量子转换效率，高Er^3 浓度掺杂需要相应的高Yb^3 浓度与之相匹配以减小由于高浓度Er^3 掺杂引起的上转换效应，Yb^3 浓度的提高将降低器件的量子转换效率，Yb^3 -Er^3 浓度之比取1～2较好。
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| 关 键 词： | 光放大器 铒离子-镱离子掺杂 磷酸盐玻璃波导放大器 量子转换效率 抽运光功率 上转换效应 |
| 收稿时间： | 2002-12-02 |
Gain and Quantum Conversion Efficiency of Er3+-Yb3+ Codoped Phosphate Glass Amplifier Operating at Large Signal |
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| Chen Haiyan , Dai Jizhi Yang Yapei Liu Yongzhi Key Laboratory of Broadband Optical Fiber Transmission and Communication Network Technology,College of Optoelectronic Information,University of Electronic Science and Technology of China,Chengdu School of Science,Jianghan Petroleum University,Jingzhou. Gain and Quantum Conversion Efficiency of Er3+-Yb3+ Codoped Phosphate Glass Amplifier Operating at Large Signal[J]. Acta Optica Sinica, 2004, 24(3): 51-355 |
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| Authors: | Chen Haiyan Dai Jizhi Yang Yapei Liu Yongzhi Key Laboratory of Broadband Optical Fiber Transmission Communication Network Technology College of Optoelectronic Information University of Electronic Science Technology of China Chengdu School of Science Jianghan Petroleum University Jingzhou |
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| Affiliation: | Chen Haiyan 1,2 Dai Jizhi 1 Yang Yapei 1 Liu Yongzhi 11 Key Laboratory of Broadband Optical Fiber Transmission and Communication Network Technology,College of Optoelectronic Information,University of Electronic Science and Technology of China,Chengdu 6100542 School of Science,Jianghan Petroleum University,Jingzhou 434023 |
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| Abstract: | Gain and quantum conversion efficiency(QCE) of Er3+-Yb3+ codoped phosphate glass waveguide amplifier at large signal operation are studied. From the definition of quantum conversion efficiency the analytical expression relating gain, pump power and quantum conversion efficiency is obtained. By solving the rate and optical power propagation equations describing the Er3+-Yb3+codoped system, the effects of Er3+-concentration, Yb3+-concentration, the ratio of Yb3+-to Er3+-concentration, pump power and amplifier length on quantum conversion efficiency are discussed. It is shown that increase of Er3+-concentration and of amplifier length can improve quantum conversion efficiency, in order to reduce up-conversion caused by high Er3+-concentration, high Er3+-concentration must match corresponding high Yb3+-concentration, improvement of Yb3+-concentration reduces quantum conversion efficiency, the rate of 1～2 of Er3+-Yb3+ codoped concentration is available. |
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| Keywords: | optical fiber communication technology optical amplifier Er 3+-Yb 3+ codoped phosphate glass waveguide amplifier large signal quantum conversion efficiency (QCE) |
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