| 耦合模理论对光纤光栅的分析 |
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| 引用本文： | 王健刚,刘汉法. 耦合模理论对光纤光栅的分析[J]. 山东理工大学学报：自然科学版, 2007, 21(1): 84-87 |
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| 作者姓名： | 王健刚 刘汉法 |
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| 作者单位： | 莱阳农学院,机电工程学院,山东,青岛,266109;山东理工大学,物理与光电信息技术学院,山东,淄博,255049 |
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| 摘 要： | 从麦克斯韦方程组出发,基于光波导中的模式耦合理论,考虑到经紫外光照射后光纤纤芯折射率的直流增量,给出了新的光纤光栅耦合模方程,得到了较简洁的耦合系数表达式.通过求解耦合方程,得出了更严格的、与实验结果相符的布拉格波长表达式.
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| 关 键 词： | 耦合模理论 光纤布拉格光栅 布拉格波长 耦合系数 |
| 文章编号： | 23751577 |
| 修稿时间： | 2006-05-08 |
Analysis of fiber Bragg Grating by coupled-mode theory |
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| WANG Jian-gang,LIU Han-fa. Analysis of fiber Bragg Grating by coupled-mode theory[J]. Journal of Shandong University of Technology:Science and Technology, 2007, 21(1): 84-87 |
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| Authors: | WANG Jian-gang LIU Han-fa |
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| Affiliation: | 1. School of Electromechanical Engineering, Laiyang Agricultural University, Qingdao 265200, China; 2. School of Physics and photoelectric Information technology, Shandong University of Technology, Zibo 255049, China |
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| Abstract: | Principle and characteristics of Bragg grating are introduced briefly.New coupled-mode equations as well as a concise representation of coupling constant are derived and obtained,based on the Maxwell equations and using the coupled-mode theory of optical guidance and considering the direct increase of fiber refractive index of fiber core after UV exposure.When the new coupled-mode equations are solved,a more accurate result of the Bragg wavelength is obtained,which is coincided with experimental result. |
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| Keywords: | coupled-mode theory fiber bragg grating Bragg wavelength coupling constant |
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