Dual-Tapered 10-μm-Spot-Size Converter with Double Core for Coupling Polarization-Independent Silicon Rib Waveguides to Single-Mode Optical Fibers

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著者

    • Tokushima Masatoshi Tokushima Masatoshi
    • Innovation Center for Advanced Nanodevices (ICAN), National Institute of Advanced Industrial Science and Technology (AIST), West 7, Tsukuba, Ibaraki 305-8569, Japan
    • Kamei Akio Kamei Akio
    • Innovation Center for Advanced Nanodevices (ICAN), National Institute of Advanced Industrial Science and Technology (AIST), West 7, Tsukuba, Ibaraki 305-8569, Japan
    • Horikawa Tsuyoshi Horikawa Tsuyoshi
    • Innovation Center for Advanced Nanodevices (ICAN), National Institute of Advanced Industrial Science and Technology (AIST), West 7, Tsukuba, Ibaraki 305-8569, Japan

抄録

A new spot-size converter (SSC) for coupling Si rib waveguides to 10-μm-mode-diameter single mode optical fibers was theoretically and experimentally evaluated. The core of the SSC consisted of a lateral and vertical Si inverse-taper having a rib-to-wire shape and a lateral silica normal-taper with a rib shape. The calculated coupling losses for an optimized structure were 0.65 and 0.66 dB for transverse-electric (TE) and transverse-magnetic (TM) polarizations, respectively. The losses of the fabricated SSCs were 2.7 dB (TE) and 3.0 dB (TM). The measured misalignment tolerance was \pm 1.2 μm for an extra-loss increase of 0.25 dB.

収録刊行物

  • Applied physics express

    Applied physics express 5(2), 022202-022202-3, 2012-02-25

    The Japan Society of Applied Physics

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各種コード

  • NII論文ID(NAID)
    10030155382
  • NII書誌ID(NCID)
    AA12295133
  • 本文言語コード
    EN
  • 資料種別
    SHO
  • ISSN
    18820778
  • NDL 記事登録ID
    023454326
  • NDL 請求記号
    Z78-A526
  • データ提供元
    CJP書誌  CJP引用  NDL  JSAP 
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