| Special Apodized Fiber Bragg Grating for Flat—top Band—pass Reflectivity Filter |
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| 引用本文： | LIUYu-min YUZhong-yuan YANGHong-bo YANGBo-jun YULi ZHANGXiao-guang. Special Apodized Fiber Bragg Grating for Flat—top Band—pass Reflectivity Filter[J]. 半导体光子学与技术, 2004, 10(4): 225-227,232 |
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| 作者姓名： | LIUYu-min YUZhong-yuan YANGHong-bo YANGBo-jun YULi ZHANGXiao-guang |
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| 作者单位： | SchoolofSciences,BeijingUniversityofPostsandTelecommunications,Beijing100876,CHN |
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| 基金项目： | 国家自然科学基金，国家高技术研究发展计划(863计划) |
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| 摘 要： | The characteristics of special apodized fiber Bragg grating (FBG) in flat--top pass--band as reflectivity filter are presented. This special apodized FBG was designed by the particle swarm optimization algorithm. Compared with conventional apodized FBG, the special apodized FBG presented was more robust in the flat—top pass——band characteristic even if the strength of grating is very week. This technology is very interesting in designing the filter for wavelength division multiplexing system.
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| 关 键 词： | 光纤布拉格光栅 带通滤波器 平顶滤波 光纤通信 波分复用 |
| 收稿时间： | 2003-12-29 |
Special Apodized Fiber Bragg Grating for Flat-top Band-pass Reflectivity Filter |
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| LIU Yu-min,YU Zhong-yuan,YANG Hong-bo,YANG Bo-jun,YU Li,ZHANG Xiao-guang. Special Apodized Fiber Bragg Grating for Flat-top Band-pass Reflectivity Filter[J]. Semiconductor Photonics and Technology, 2004, 10(4): 225-227,232 |
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| Authors: | LIU Yu-min YU Zhong-yuan YANG Hong-bo YANG Bo-jun YU Li ZHANG Xiao-guang |
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| Abstract: | The characteristics of special apodized fiber Bragg grating (FBG) in flat-top pass-band as reflectivity filter are presented. This special apodized FBG was designed by the particle swarm optimization algorithm. Compared with conventional apodized FBG, the special apodized FBG presented was more robust in the flat-top pass-band characteristic even if the strength of grating is very week. This technology is very interesting in designing the filter for wavelength division multiplexing system. |
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| Keywords: | Fiber Bragg grating Filter Flat-top and steep-edge |
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