| 中心外缺陷对带隙型光子晶体光纤色散特性的影响 |
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| 引用本文： | 赵岩,施伟华,姜跃进.中心外缺陷对带隙型光子晶体光纤色散特性的影响[J].海洋学报,2010,32(9):6279-6283. |
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| 作者姓名： | 赵岩 施伟华 姜跃进 |
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| 作者单位： | 南京邮电大学光通信研究所 210003;南京邮电大学光通信研究所 210003;南京邮电大学光通信研究所 210003 |
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| 基金项目： | 国家自然科学基金 (批准号: 60707006),江苏省教育厅省属高校"青蓝工程"(批准号:TJ207015),南京邮电大学攀登计划(批准号:NY207054)资助的课题. |
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| 摘 要： | 利用时域有限差分法(FDTD)模拟仿真了在中心缺陷外出现点缺陷、空气柱位错和内层空气柱发生形变三种缺陷形态对光子带隙型光子晶体光纤(PBG-PCF)色散特性的影响.发现一方面缺陷的出现会使色散曲线趋于平坦,另一方面点缺陷和位错缺陷的出现会使零色散点向长波移动,内层空气柱的形变使零色散点向短波长移动.这对PBG-PCF的实际生产实践会有指导意义.
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| 关 键 词： | 带隙型光子晶体光纤 时域有限差分法 缺陷态 色散 |
Effect of defects outside the centre on dispersive properties of photonic band gap guiding photonic crystal fibers |
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| Zhao Yan,Shi Wei-Hua and Jiang Yue-Jin.Effect of defects outside the centre on dispersive properties of photonic band gap guiding photonic crystal fibers[J].Acta Oceanologica Sinica (in Chinese),2010,32(9):6279-6283. |
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| Authors: | Zhao Yan Shi Wei-Hua and Jiang Yue-Jin |
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| Institution: | Nanjing University of Posts & Telecommunication Optical Communications Research Institute Nanjing 210003, China;Nanjing University of Posts & Telecommunication Optical Communications Research Institute Nanjing 210003, China;Nanjing University of Posts & Telecommunication Optical Communications Research Institute Nanjing 210003, China |
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| Abstract: | The dispersion properties of optical wave in photonic band gap guiding photonic crystal fibers (PBG-PCF) were analyzed by the finite differential time domain method. The result demonstrates that: the point defects and the dislocation of air holes make the zero-dispersion-point move to the long-wavelength side, but the change of the shape of the air columm makes it move in the opposite direction. All kinds of defects make the dispersion curves flatten. |
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| Keywords: | PBG-PCF FDFD defect modes dispersion |
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