Electromagnetic mode conversion in photonic crystal multimode waveguides
    9.
    发明授权
    Electromagnetic mode conversion in photonic crystal multimode waveguides 有权
    光子晶体多模波导中的电磁模式转换

    公开(公告)号:US06728439B2

    公开(公告)日:2004-04-27

    申请号:US10393897

    申请日:2003-03-21

    IPC分类号: G02B642

    摘要: A photonic crystal waveguide having multiple guided modes, the waveguide comprising: a dielectric confinement region surrounding a waveguide axis, the confinement region comprising a photonic crystal having at least one photonic band gap, during operation the confinement region guides EM radiation in a first range of frequencies to propagate along the waveguide axis; a dielectric core region extending along the waveguide axis and surrounded by the confinement region about the waveguide axis; and a mode coupling segment comprising at least one bend in the waveguide axis, wherein during operation the mode coupling segment converts EM energy in a first guided mode to a second guided mode with a conversion efficiency greater than 10% for a frequency in the first range of frequencies.

    摘要翻译: 一种具有多个导模的光子晶体波导,所述波导包括:围绕波导轴的介电限制区域,所述约束区域包括具有至少一个光子带隙的光子晶体,所述限制区域在操作期间引导EM辐射在第一范围 频率沿波导轴传播; 介质芯区域,沿着波导轴线延伸并围绕围绕波导轴线的限制区域围绕; 以及模式耦合段,其包括在所述波导轴线中的至少一个弯曲部分,其中在操作期间,所述模式耦合段将第一引导模式中的EM能量转换为第二引导模式,对于所述第一范围中的频率,转换效率大于10% 的频率。

    All-dielectric coaxial waveguide with annular sections
    10.
    发明授权
    All-dielectric coaxial waveguide with annular sections 失效
    全介电同轴波导

    公开(公告)号:US06573813B1

    公开(公告)日:2003-06-03

    申请号:US09551908

    申请日:2000-04-19

    IPC分类号: H01P318

    摘要: An all-dielectric coaxial waveguide comprising a dielectric core region; an annulus of dielectric material, surrounding the core region, in which electromagnetic radiation is confined; and an outer region of cylindrically coaxial dielectric shells of alternating indices of refraction surrounding the annulus. The core region and the outer region have an average index of refraction which is higher than the index of refraction of the annulus.

    摘要翻译: 一种全电介质同轴波导,包括介质芯区域; 围绕核心区域的电介质材料环,电磁辐射被限制在其中; 以及围绕环带的交替的折射率的圆柱形同轴电介质外壳的外部区域。 核心区域和外部区域具有高于环空折射率的平均折射率。