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    Layered optical waveguide and near field transducer
    2.
    发明公开
    Layered optical waveguide and near field transducer 有权
    层状光波导和Nahfeldwandler

    公开(公告)号：EP2779164A3

    公开(公告)日：2015-04-01

    申请号：EP14154547.5

    申请日：2014-02-10

    申请人： Seagate Technology LLC

    发明人： Huang, Xiaoyue ,  Kautzky, Michael C ,  Zhao, Tong

    IPC分类号： G11B5/31 ,  G02B6/02

    CPC分类号： G02B6/122 ,  G02B6/02 ,  G11B5/314 ,  G11B5/4866 ,  G11B7/12 ,  G11B7/1206 ,  G11B7/124 ,  G11B2005/0021

    摘要： Waveguides that include a top cladding layer made of a material having an index of refraction n 4 ; a core bilayer structure, the core bilayer structure including a lower index core layer having an index of refraction n 3 ; and a higher index core layer having an index of refraction n 1 , wherein the higher index core layer includes TiO 2 and one or more than one of Nb 2 O 5 , CeO 2 , Ta 2 O 5 , ZrO 2 , HfO 2 , Y 2 O 3 , Sc 2 O 3 , MgO, Al 2 O 3 and SiO 2 , wherein the lower index core layer is adjacent the higher index core layer; a bottom cladding layer made of a material having an index of refraction n 2 , wherein the waveguide is configured with the higher index core layer of the core bilayer structure adjacent the top cladding layer and the lower index core layer of the core bilayer structure adjacent the bottom cladding layer, and wherein n 4 is less than n 3 and n 1 , and n 2 is less than n 3 and n 1 .

    Layered optical waveguide and near field transducer
    3.
    发明公开
    Layered optical waveguide and near field transducer 有权
    Geschichteter optischer Wellenleiter und Nahfeldwandler

    公开(公告)号：EP2779164A2

    公开(公告)日：2014-09-17

    申请号：EP14154547.5

    申请日：2014-02-10

    申请人： Seagate Technology LLC

    发明人： Huang, Xiaoyue ,  Kautzky, Michael C ,  Zhao, Tong

    IPC分类号： G11B5/31 ,  G02B6/02

    CPC分类号： G02B6/122 ,  G02B6/02 ,  G11B5/314 ,  G11B5/4866 ,  G11B7/12 ,  G11B7/1206 ,  G11B7/124 ,  G11B2005/0021

    摘要： Waveguides that include a top cladding layer made of a material having an index of refraction n 4 ; a core bilayer structure, the core bilayer structure including a lower index core layer having an index of refraction n 3 ; and a higher index core layer having an index of refraction n 1 , wherein the higher index core layer includes TiO 2 and one or more than one of Nb 2 O 5 , CeO 2 , Ta 2 O 5 , ZrO 2 , HfO 2 , Y 2 O 3 , Sc 2 O 3 , MgO, Al 2 O 3 and SiO 2 , wherein the lower index core layer is adjacent the higher index core layer; a bottom cladding layer made of a material having an index of refraction n 2 , wherein the waveguide is configured with the higher index core layer of the core bilayer structure adjacent the top cladding layer and the lower index core layer of the core bilayer structure adjacent the bottom cladding layer, and wherein n 4 is less than n 3 and n 1 , and n 2 is less than n 3 and n 1 .

    摘要翻译： 包括由具有折射率n 4的材料制成的顶部覆层的波导; 核心双层结构，核心双层结构包括具有折射率n 3的较低折射率核心层; 以及具有折射率n 1的较高折射率的核心层，其中较高折射率的核心层包括TiO 2和Nb 2 O 5，CeO 2，Ta 2 O 5，ZrO 2，HfO 2，Y中的一种或多于一种 2 O 3，Sc 2 O 3，MgO，Al 2 O 3和SiO 2，其中较低折射率的核心层与较高折射率的核心层相邻; 由具有折射率n 2的材料制成的底部包层，其中所述波导配置有与所述芯层双层结构相邻的所述芯层双层结构的较高折射率芯层与所述芯层双层结构的较低折射率核心层相邻 其中n 4小于n 3和n 1，n 2小于n 3和n 1。