FIBER BRAGG GRATING ELEMENT
    1.
    发明公开
    FIBER BRAGG GRATING ELEMENT 审中-公开
    FASER - 布拉格GITTERELEMENT

    公开(公告)号:EP1860472A1

    公开(公告)日:2007-11-28

    申请号:EP06713887.5

    申请日:2006-02-16

    IPC分类号: G02B6/02

    摘要: The present invention provides a fiber Bragg grating element which is simply configured and capable of obtaining a high cut-off amount exceeding 40 dB in a wide range.
    A fiber Bragg grating element of the present invention has a plurality of gratings formed in an optical waveguide having a core and a cladding around the core thereby to perform high rejection filtering on an input optical signal over a desired bandwidth, the gratings being formed with a grating pitch between adjacent two of the gratings increasing toward a center in a longitudinal direction of the optical waveguide.

    摘要翻译: 本发明提供一种光纤布拉格光栅元件,其被简单地配置并且能够在宽范围内获得超过40dB的高截止量。 本发明的光纤布拉格光栅元件具有多个光栅,其形成在光纤中,该光波导具有围绕芯的芯和包层,从而在期望的带宽上对输入光信号执行高抑制滤波,光栅形成为 相邻两个光栅之间的光栅间距向光波导的纵向方向的中心增加。