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    • 2. 发明授权
    • Microfabricated bragg waveguide
    • 微型布拉格波导
    • US06807353B1
    • 2004-10-19
    • US10025447
    • 2001-12-19
    • James G. FlemingShawn-Yu LinG. Ronald Hadley
    • James G. FlemingShawn-Yu LinG. Ronald Hadley
    • G02B600
    • G02B6/02304B82Y20/00G02B6/032G02B6/1225
    • A microfabricated Bragg waveguide of semiconductor-compatible material having a hollow core and a multilayer dielectric cladding can be fabricated by integrated circuit technologies. The microfabricated Bragg waveguide can comprise a hollow channel waveguide or a hollow fiber. The Bragg fiber can be fabricated by coating a sacrificial mandrel or mold with alternating layers of high- and low-refractive-index dielectric materials and then removing the mandrel or mold to leave a hollow tube with a multilayer dielectric cladding. The Bragg channel waveguide can be fabricated by forming a trench embedded in a substrate and coating the inner wall of the trench with a multilayer dielectric cladding. The thicknesses of the alternating layers can be selected to satisfy the condition for minimum radiation loss of the guided wave.
    • 具有中空芯和多层电介质包层的半导体兼容材料的微细布拉格波导可以通过集成电路技术制造。 微细布拉格波导可以包括中空通道波导或中空纤维。 布拉格光纤可以通过涂覆具有交替层的高折射率和低折射率介电材料的牺牲心轴或模具来制造,然后去除心轴或模具以留下具有多层电介质包层的中空管。 布拉格通道波导可以通过在衬底中形成沟槽并用多层电介质覆层涂覆沟槽的内壁来制造。 可以选择交替层的厚度以满足导波的最小辐射损耗的条件。