| 同向抽运光纤拉曼放大器功率转换效率的理论分析 |
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| 引用本文： | 龙青云,胡素梅. 同向抽运光纤拉曼放大器功率转换效率的理论分析[J]. 量子电子学报, 2015, 32(3): 301-305 |
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| 作者姓名： | 龙青云 胡素梅 |
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| 作者单位： | 1.广东石油化工学院 计算机与电子信息学院，广东 茂名 525000 2.广东石油化工学院 理学院，广东 茂名 525000 |
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| 基金项目： | 国家自然科学基金项目(61272382);广东省自然科学基金项目(s2013010012844);茂名市科技计划项目(2014033) |
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| 摘 要： | 为了对同向抽运光纤拉曼放大器的功率转换效率进行研究，由耦合方程出发，首先理论推导出功率转换效率的解析解，然后采用数值计算的方法详细分析不同物理因素对功率转换效率的影响。结果表明：功率转换效率先随着光纤长度和单位面积的拉曼增益系数增加而增加，当增加到最大值时保持数值不变；小信号时，初始信号光功率对功率转换效率的影响较小；大信号时，功率转换效率随着初始信号光功率增加而快速增加；功率转换效率和初始抽运光功率呈抛物线曲线关系；抽运光与信号光的频率比增加时，功率转换效率减小。
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| 关 键 词： | 光通信 功率转换效率 理论推导 光纤拉曼放大器 同向抽运 |
| 收稿时间： | 2014-10-21 |
| 修稿时间： | 2015-01-06 |
Theoretical analysis of power conversion efficiency of forward pumped fibre Raman amplifier |
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| LONG Qingyun , HU Sumei. Theoretical analysis of power conversion efficiency of forward pumped fibre Raman amplifier[J]. Chinese Journal of Quantum Electronics, 2015, 32(3): 301-305 |
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| Authors: | LONG Qingyun HU Sumei |
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| Affiliation: | 1 College of Computer and Electronic Information, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000; 2 College of Science, Guangdong University of Petrochemical Technology, Maoming, Guangdong 525000 |
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| Abstract: | In order to analyze power conversion efficiency of forward pumped fibre Raman amplifier(FRA), by theoretical derivation method for solving differential coupling equations of forward pumped FRA, the theoretical expression of power conversion efficiency is presented. then, the effect of different parameter on forward pumped FRA’s power conversion efficiency has been detailedly investigated. It is found that: power conversion efficiency will increase when the fibre length or Raman gain coefficient per unit area increase, until it has reached the maximum; initial signal power has a little influence on power conversion efficiency when it is small, and power conversion efficiency increase quickly when initial signal power is larger; the relation between power conversion efficiency and initial pump power is para-curve; power conversion efficiency decrease when the frequency rate of pump and signal is larger. |
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| Keywords: | optical communication power conversion efficiency theoretical derivation fibre Raman amplifier forward pumping |
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