| Er与Yb共掺波导放大器的ADI-FDTD数值模拟 |
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| 引用本文： | 陈海燕,戴基智,黄绣江,刘永智.Er与Yb共掺波导放大器的ADI-FDTD数值模拟[J].计算物理,2003,20(5):443-446. |
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| 作者姓名： | 陈海燕 戴基智 黄绣江 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国家重点实验室, 四川 成都 610054;2. 江汉石油学院理学院, 湖北 荆州 434023 |
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| 摘 要： | 提出了一种新的简单的数值计算方法模拟Er与Yb共掺磷酸盐玻璃波导放大器(EYCDWA)的增益特性.该方法是基于交变隐式差分方向的时域有限差分法(ADI-FDTD)的迭代方法,用ADI-FDTD计算波导中的光场强度分布,用迭代法研究光波的传输方程.数值结果表明,增加光波导长度和提高Er3+浓度是提高EYCD WA增益的两种重要途径,Yb3+起能量传递的作用,Er/Yb的比率取1~4较好.
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| 关 键 词： | 光波导放大器 ADI-FDTD 数值模拟 |
| 文章编号： | 1001-246X(2003)05-0443-04 |
| 收稿时间： | 2002-09-10 |
| 修稿时间： | 2002年9月10日 |
Numerical Simulation of Erbium-Ytterbium Co-doped Waveguide Amplifiers by ADI-FDTD |
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| CHEN Hai-yan,DAI Ji-zhi,HUANG Xiu-jiang,LIU Yong-zhi.Numerical Simulation of Erbium-Ytterbium Co-doped Waveguide Amplifiers by ADI-FDTD[J].Chinese Journal of Computational Physics,2003,20(5):443-446. |
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| Authors: | CHEN Hai-yan DAI Ji-zhi HUANG Xiu-jiang LIU Yong-zhi |
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| Institution: | 1. National Key Laboratory of Broad-Band Optical Fiber Transmission and Communication Network Technology, College of Opto-electronic Information, University of Electronic Science and Technology of China, Chengdu 610054, China;2. School of Science, Jianghan Petroleum University, Jingzhou 434023, China |
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| Abstract: | A new and simple numerical computational method simulating the gain characteristics of erbium and ytterbium co-doped phosphate glass waveguide amplifier(EYCDWA)is presented. This algorithm is a combination of the iterative procedure and the Finite-Differences Time-Domain based on Alternating-direction Implicit Method(ADI-FDTD), using ADI-FDTD calculating the normalized field intensity distribution of pump and signal and an iterative procedure studying the power propagation equations of the pump and signal. Numerical results demonstrate that the increase of the length and Er3+ concentration is two main approaches to improve the gain of EYCDWA, Yb3+ plays an energy transform role and 1~4 ratio of Yb/Er is better. |
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| Keywords: | optical waveguide amplifier ADI-FDTD numerical simulation |
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