基于谐振耦合现象的三芯光子晶体光纤带通滤波器

余学权, 刘明礼, 汪昊, 陈伟

余学权, 刘明礼, 汪昊, 陈伟. 基于谐振耦合现象的三芯光子晶体光纤带通滤波器[J]. 应用光学, 2010, 31(2): 305-308.
引用本文: 余学权, 刘明礼, 汪昊, 陈伟. 基于谐振耦合现象的三芯光子晶体光纤带通滤波器[J]. 应用光学, 2010, 31(2): 305-308.
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YU Xue-quan, LIU Ming-li, WANG Hao, CHEN Wei. Bandpass filter based on resonant tunneling phenomenon in three-core photonic crystal fibers[J]. Journal of Applied Optics, 2010, 31(2): 305-308.
Citation: YU Xue-quan, LIU Ming-li, WANG Hao, CHEN Wei. Bandpass filter based on resonant tunneling phenomenon in three-core photonic crystal fibers[J]. Journal of Applied Optics, 2010, 31(2): 305-308.
shu

基于谐振耦合现象的三芯光子晶体光纤带通滤波器

  • 江苏大学机械工程学院光信息科学与技术系,江苏镇江212013

详细信息
    通讯作者:

    余学权(1983-)，男，江苏涟水人，硕士研究生，主要从事光无源通信器件的研究工作。

  • 中图分类号: TN252

Bandpass filter based on resonant tunneling phenomenon in three-core photonic crystal fibers

  • Department of Optical Engineering,School of Mechanic Engineering,Jiangsu University,Zhenjiang 212013,China

摘要

    摘要
  • 摘要: 设计了一种三芯光子晶体光纤带通滤波器结构。利用纤芯间的谐振耦合，实现了滤波。当3个纤芯基模模式有效折射率在同一频率点实现匹配时，将产生谐振现象。通过合理选取光纤结构参数，可以使3个模式满足谐振条件。由于3个纤芯基模只在工作波长处实现有效折射率的匹配，因而纤芯间发生波长的选择性耦合。应用全矢量光束传播法(BPM)分析了这种光纤带通滤波器的性能。结果表明：在1.55m工作波长上，光纤耦合长度为22.8mm；在损耗低于-3dB前提下，通带带宽为8.9nm。
    Abstract: A bandpass filter based on resonant tunneling phenomenon in three-core photonic crystal fibers (PCFs) is presented. Resonance will occur if the effective refractive indices of the fundamental modes of three-core PCFs match at the same wavelength. By choosing the proper parameters of PCFs, all the three modes could meet the resonant condition. The effective refractive indices of the three-cores match only at the wavelength of 1.55m. As a result, wavelength-selective coupling is achieved. Full-vector beam propagation method (BPM) is employed to analyze the performance of the filter. Numerical investigation demonstrates that the coupling length is 22.8mm, and the bandwidth of the bandpass filter is 8.9nm with the loss of -3dB at 1.55m.
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    • 参考文献(1)
  • ［1］KITAYAMA K, ISHIDA Y. Wavelength-selective coupling of two-core optical fiber: application and design［J］. Journal of the Optical Society of America A, 1985,2(1):90-94.
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    ［8］SUN Xi-wen. Wavelength-selective coupling of dua-lcore photonic crystal fiber with a hybrid light-guiding mechanism［J］. Optics Letters,2007,32(17):2484-2486.
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  • 刊出日期:  2010-03-11

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