| 长周期光纤光栅的耦合模理论 |
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| 引用本文： | 关寿华,于清旭,宋世德. 长周期光纤光栅的耦合模理论[J]. 黑龙江科技学院学报, 2005, 15(4): 246-248 |
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| 作者姓名： | 关寿华 于清旭 宋世德 |
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| 作者单位： | 1. 大连民族学院,理学院,辽宁,大连,116600
2. 大连理工大学,物理系,辽宁,大连,116024 |
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| 基金项目： | 国家自然科学基金海外青年合作基金资助（69478005） |
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| 摘 要： | 为了分析长周期光纤光栅的耦合机制和光栅特性，基于耦合模理论，对长周期光纤光栅中纤芯导模与包层模间的模式耦合进行了研究，推导出长周期光纤光栅的传输率、耦合系数等多个公式；基于Matlab软件编程，研究得到比较可行的长周期光纤光栅传输谱仿真模拟方法，模拟结果与实验观测相符。
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| 关 键 词： | 长周期光纤光栅 耦合模理论 模拟 |
| 文章编号： | 1671-0118（2005）04-0246-03 |
| 收稿时间： | 2005-05-08 |
| 修稿时间： | 2005-05-08 |
Coupled-mode theory for long-period fiber grating |
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| GUAN Shouhua,YU Qingxu,SONG Shide. Coupled-mode theory for long-period fiber grating[J]. Journal of Heilongjiang Institute of Science and Technology, 2005, 15(4): 246-248 |
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| Authors: | GUAN Shouhua YU Qingxu SONG Shide |
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| Affiliation: | 1.College of Physics, Dalian Nationalities University, Dalian 116600, China; 2.Department of Sciences, Dalian University of Technology, Dalian 116024, China |
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| Abstract: | Devoted to analyzing the coupling mechanism and spectrum characteristics of long-period fibre grating (LPFG), this paper introduces the study of the mode coupling between guided core mode and cladding mode in LPFG, based on coupled-mode theory, and features resulting several formulas about LPFG, such as transmission rate, coupling coefficient, etc. The paper offers a simple method designed to simulate the spectrum through LPFG and through programming with Matlab software. The experimental result proves that the simulation result is right. |
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| Keywords: | LPFG coupled-mode theory simulation |
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