Analytic Solution for Cascaded Long-Period Fiber Gratings

参考文献18件
  • HA LEE Byeong
    the Department of Information and Communications, Kwangju Institute of Science and Technology
  • KIM Young-Jae
    the Department of Information and Communications, Kwangju Institute of Science and Technology
  • CHUNG Youngjoo
    the Department of Information and Communications, Kwangju Institute of Science and Technology
  • HAN Won-Taek
    the Department of Information and Communications, Kwangju Institute of Science and Technology
  • PAEK Un-Chul
    the Department of Information and Communications, Kwangju Institute of Science and Technology

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説明

The analytic expression for the transmission spectrum of cascaded long-period fiber gratings is presented ina closed form. When several identical gratings are cascaded inseries with a regular distance, the transmission spectrum is revealed to have a series of regularly spaced peaks, suitable for multi-channel filters. The analytic solution is obtained by diagonalizing the transfer matrix of each grating unit that is composed of a single grating and a grating-free region between adjacent gratings. The spectrum of the device is simply described with the number of cascaded gratings and a single parameter that has the information of the phase difference between the modes. With the derived equation, the spectral behaviors of the proposed deviceare investigated. The intensity of each peak can be controlled by adjusting the strength of a single grating. The separation between adjacent gratings determines the spacing between the peaks. The finesse of the peaks can be increased by cascading more gratings. The derived analytic results are compared with the known results of paired gratings and phase-shifted gratings.

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詳細情報 詳細情報について

  • CRID
    1570854177488309888
  • NII論文ID
    110003219070
  • NII書誌ID
    AA10826261
  • ISSN
    09168516
  • 本文言語コード
    en
  • データソース種別
    • CiNii Articles

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