| 少模光纤干涉仪性能的数值仿真研究 |
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| 引用本文： | 阮德金, 邓路, 杨春,.少模光纤干涉仪性能的数值仿真研究[J].电子器件,2007,30(2):596-599. |
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| 作者姓名： | 阮德金 邓路 杨春 |
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| 作者单位： | 光子学与光通信研究室,东南大学电子科学与工程学院,南京,210096 |
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| 摘 要： | 本文用数值仿真的方法研究了基于LP01模和LP02模干涉的少模光纤干涉仪的性能与光纤参数的关系.用有限差分法数值求解少模光纤干涉仪中单模光纤和少模光纤的导模.在少模光纤的LP03模截止且LP02导通的参数范围内,计算了调制深度和耦合效率与少模光纤参数的关系.计算结果表明,在采用SMF-28作为输入输出单模光纤的情况下,通过优化设计少模光纤的参数,可以使得调制深度大于98%,耦合效率接近于0.5.
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| 关 键 词： | 少模光纤 干涉仪 可见度 耦合效率 有限差分法 |
| 文章编号： | 1005-9490(2007)02-0596-04 |
| 修稿时间： | 2006年9月22日 |
Simulation Study Namerically on Performance of Few-Mode Fiber Interferometer |
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| RUAN De-jin,DENG Lu,YANG Chun.Simulation Study Namerically on Performance of Few-Mode Fiber Interferometer[J].Journal of Electron Devices,2007,30(2):596-599. |
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| Authors: | RUAN De-jin DENG Lu YANG Chun |
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| Affiliation: | Lab Photonics and Optical Communication,Electronic Science and Engineering College,Southeast University,NanJing 210096,China |
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| Abstract: | Few-mode fiber interferometer(FMFI)which based on LP01 and LP02 modes interference is numerically studied in this paper.Scalar eigen-equations of few-mode fiber and single-mode input and output fiber were solved using finite difference method.Modulation depth and coupling efficiency were calculated in the range where LP03 mode are cut-off and LP02 mode are guided.It is indicated that by optimizing the parameter of few-mode fiber,the modulation depth of FMFI can be greater than 0.98 and coupling efficiency larger than 0.5,in case of SMF-28 input and output fiber. |
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| Keywords: | few-mode fiber interferometer visibility coupling efficiency finite difference method |
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