| 基于微小孔径衍射的光纤耦合研究 |
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| 引用本文： | 常山,黄益宾,张坤鹏. 基于微小孔径衍射的光纤耦合研究[J]. 压电与声光, 2013, 35(3): 335-338 |
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| 作者姓名： | 常山 黄益宾 张坤鹏 |
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| 作者单位： | 上饶师范学院 物理与电子信息学院，江西 上饶 334001 |
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| 基金项目： | 江西省教育厅科技项目基金资助项目(GJJ11612)；上饶师范学院2007年科研课题基金资助项目 |
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| 摘 要： | 光纤耦合方式影响光纤耦合效率和信息的完整性，为此研究了基于微小孔径衍射的光纤耦合，从直接耦合、微小圆孔耦合、微小透镜耦合到畸变微小透镜耦合，通过考察束型、强度分布、光斑大小等改变，进而提出了鱼眼镜头光纤耦合方式，获得了平顶化聚焦光斑。计算机模拟实验表明，这种鱼眼镜头耦合方式改善了耦合效能。
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| 关 键 词： | 光纤耦合；微小孔径衍射；高斯光束；微小透镜；平顶化聚焦 |
Study on Fiber Coupling Based on Micro Aperture Diffraction |
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| CHANG Shan,HUANG Yibin and ZHANG Kunpeng. Study on Fiber Coupling Based on Micro Aperture Diffraction[J]. Piezoelectrics & Acoustooptics, 2013, 35(3): 335-338 |
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| Authors: | CHANG Shan HUANG Yibin ZHANG Kunpeng |
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| Affiliation: | School of Physics & Electronic Information, Shangrao Normal University, Shangrao 334001, China |
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| Abstract: | The fiber coupling modes will affect the fiber coupling efficiency and integrity of information, for this reason, the fiber coupling based on micro aperture diffraction has been studied from the direct coupling, micro circular aperture coupling, and micro lens coupling to micro distortion lens coupling. The changes of beam type, intensity distribution and spot size have been investigated, and then the fiber coupling based on fish eye lens is proposed to obtain the focused spot with a flat top. Computer simulations show that the coupling mode with fisheye lens is able to improve the coupling performance. |
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| Keywords: | fiber coupling micro aperture diffraction Gaussian beam micro lens focusing with a flat top |
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