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    • 2. 发明公开
    • BENT OPTICAL WAVEGUIDE
    • GEBOGENER OPTISCHER WELLENLEITER
    • EP2909663A1
    • 2015-08-26
    • EP13846711.3
    • 2013-10-15
    • Teknologian tutkimuskeskus VTT Oy
    • CHERCHI, MatteoAALTO, Timo
    • G02B6/125G02B6/122
    • G02B6/262G02B6/02047G02B6/1223G02B6/125
    • An optical multi-mode HIC (high index contrast) waveguide (102, 104, 201, 301) for transporting electromagnetic radiation in the optical waveband, the waveguide comprising a guiding core portion (204) with higher refractive index, and cladding portion (206) with substantially lower refractive index configured to at least partially surround the light guiding core in the transverse direction to facilitate confining the propagating radiation within the core, the waveguide being configured to support multiple optical modes of the propagating radiation, wherein the waveguide incorporates a bent waveguide section (202) having bend curvature that is configured to at least gradually, preferably substantially continuously, increase towards a maximum curvature of said section from a section end.
    • 一种用于传输光波段中的电磁辐射的光学多模式HIC(高折射率对比度)波导(102,104,301,301),所述波导包括具有较高折射率的引导芯部分(204)和包层部分(206 ),其具有基本上较低的折射率,其构造成在横向方向上至少部分地围绕所述导光芯,以便于将所述传播辐射限制在所述芯内,所述波导被配置为支撑所述传播辐射的多个光学模式,其中所述波导包括 具有弯曲的弯曲波导部分(202)。 被配置为至少逐渐地,优选地基本上连续的曲率从所述截面端朝着所述部分的最大曲率增加。