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| 脊形掺铒Al2O3光波导放大器级联特性的模拟计算 | |
| 引用本文： | 李成仁,宋昌烈,李淑凤,宋琦,李建勇.脊形掺铒Al2O3光波导放大器级联特性的模拟计算[J].光子学报,2005,34(6):839-843. |
| 作者姓名： | 李成仁 宋昌烈 李淑凤 宋琦 李建勇 |
| 作者单位： | 1. 辽宁师范大学物理系,辽宁大连,116029;大连理工大学物理系,辽宁大连,116024 2. 大连理工大学物理系,辽宁大连,116024 |
| 基金项目： | 国家自然科学基金(No.69889701)、辽宁省科技厅(No.20022110)、辽宁省教育厅(No.202123198)资助项目 |
| 摘 要： | 利用有限元法分析了脊形掺铒Al2O3光波导放大器内信号光和抽运光的场模式分布、速率方程求解铒离子五能级系统的粒子数分布.数值模拟了光波导净增益与信号光功率的关系和多个放大器级联的净增益特性.结果表明：级联系统存在着净增益亏损.低掺铒浓度的光波导作前级放大器的组合方式,级联系统总净增益最大. |
| 关 键 词： | 脊形Er:Al2O3光波导放大器 模拟计算 级联 信号功率 净增益亏损 |
| 收稿时间： | 2004-04-07 |
| 修稿时间： | 2004年4月7日 |
Simulation for Net Gain Characteristics of Rib Er-doped Al2O3 |
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| Li Chengren,Song Changlie,LI Shufeng,SONG Qi,Li Jianyong.Simulation for Net Gain Characteristics of Rib Er-doped Al2O3[J].Acta Photonica Sinica,2005,34(6):839-843. | |
| Authors: | Li Chengren Song Changlie LI Shufeng SONG Qi Li Jianyong |
| Affiliation: | (1 Physics Department of Liaoning Normal University, Dalian, Liaoning 116029) (2 Physics Department of Dalian University of Technology, Dalian Liaoning 116024) |
| Abstract: | The modes configuration of the electromagnetic field of the signal light and the pump light within rib Er-doped Al_2O_3 waveguide amplifiers were analyzed using the finite element method. The population distribution of the five-levels system for Er 3+ with 980 nm pump was solved using its rate equations. The relationship between the net gain of the waveguide and the signal power, and net gain characteristics of two or three rib Er-doped Al_2O_3 waveguide amplifiers in series were numerically simulated. The results show that there are two kinds of net gain losses. In the series system, the better total amplification ability can be obtained when the waveguide amplifiers with low-concentration is taken as a preamplifier than it is taken as a post-amplifier. |
| Keywords: | Rib Er-doped Al_2O_3 waveguide amplifiers Numerical simulation Series Signal power Net gain loss |
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