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    • 21. 发明申请
    • TAPERED PHOTONIC WAVEGUIDE TO OPTICAL FIBER PROXIMITY COUPLER
    • 光学波导到光纤接近耦合器
    • US20160103279A1
    • 2016-04-14
    • US14510373
    • 2014-10-09
    • International Business Machines Corporation
    • Russell A. Budd
    • G02B6/122G02B6/13G02B6/12
    • G02B6/305G02B6/12004G02B6/1228G02B6/13G02B6/245G02B2006/12061G02B2006/12147
    • A photonic waveguide structure may include a tapered photonic waveguide structure within a photonic substrate, such that the tapered photonic waveguide structure has a tapered region that progressively tapers in width along a longitudinal length of the tapered photonic waveguide structure. The photonic waveguide structure also includes an optical fiber waveguide having a core region and a cladding region, whereby a portion of the core region is partially exposed by removing a portion of the cladding region. An outer surface of the portion of the core region that is partially exposed is substantially coupled to the tapered photonic waveguide structure. An optical signal propagating along the tapered photonic waveguide structure is coupled from the tapered region of the tapered photonic waveguide structure to the core region of the optical fiber waveguide via the core region that is partially exposed.
    • 光子波导结构可以包括光子衬底内的锥形光子波导结构,使得锥形光子波导结构具有逐渐沿着锥形光子波导结构的纵向长度逐渐变细的锥形区域。 光子波导结构还包括具有芯区域和包层区域的光纤波导,通过去除包层区域的一部分,芯区域的一部分被部分地曝光。 被部分暴露的芯区域的部分的外表面基本上耦合到锥形光子波导结构。 沿着锥形光子波导结构传播的光信号经由部分暴露的核心区域从锥形光子波导结构的锥形区域耦合到光纤波导的核心区域。