| 分析布拉格光栅破坏的两纤芯不同的光纤耦合器 |
| |
| 引用本文： | 朱松林,章献民,陈抗生. 分析布拉格光栅破坏的两纤芯不同的光纤耦合器[J]. 光学学报, 2002, 22(7): 74-877 |
| |
| 作者姓名： | 朱松林 章献民 陈抗生 |
| |
| 作者单位： | 浙江大学信息与电子工程学系,杭州,310027 |
| |
| 基金项目： | 教育部科学技术研究重点项目 (990 6 6 )资助课题 |
| |
| 摘 要： | 进一步推广了描述纤芯不同光纤耦合器的耦合模理论，用于解释被布拉格光栅破坏的两纤芯不同光纤耦合器的耦合现象，理论分析的结果与已报道的实验结果相符，与单独的布拉格光栅所起的反射作用不同,这里布拉格光栅所起的作用主要是引入了强烈的色散，在光栅的频谱范围内使耦合器不再同步，在被布拉格光栅破坏的光纤耦合器的选择性频谱中，其边缘部分出现非常弱的波动，而在其阻带内出现非常强的凹陷。
|
| 关 键 词： | 布拉格光栅 光纤耦合器 耦合模公式 密集波分复用系统 波长分插复用器 |
| 收稿时间： | 2001-04-09 |
Analysis of Bragg Grating-Frustrated Dissimilar Two-Core Coupler |
| |
| Zhu Songlin Zhang Xianmin Chen Kangsheng. Analysis of Bragg Grating-Frustrated Dissimilar Two-Core Coupler[J]. Acta Optica Sinica, 2002, 22(7): 74-877 |
| |
| Authors: | Zhu Songlin Zhang Xianmin Chen Kangsheng |
| |
| Affiliation: | Zhu Songlin Zhang Xianmin Chen Kangsheng Department of Information and Electronic Engineering,Zhejiang University,Hangzhou 310027) |
| |
| Abstract: | The coupled mode theory for fiber coupler with dissimilar cores is extended to analyze the coupling phenomena in grating frustrated ones. The theoretical results are agreed well with the experimental results in references. Unlike the Bragg grating alone as reflective element, the main effect of the Bragg grating in the coupler is that it introduces a strong dispersion, making the coupler asynchronous in the spectral band of grating. It is also found that the selective spectra of the Bragg fiber coupler caused by the Bragg grating frustrated in the two dissimilar core fiber have not any sidelobe but have very weak jitters on the spectral side part and strong dips on the spectral stop band. |
| |
| Keywords: | Bragg grating optical fiber coupler coupled mode theory |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
