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    Gratings For Waveguide Coupling
    1.
    发明申请
    Gratings For Waveguide Coupling 审中-公开
    波导耦合光栅

    公开(公告)号：US20120257490A1

    公开(公告)日：2012-10-11

    申请号：US13081547

    申请日：2011-04-07

    Applicant: Lifu Zhou

    Inventor： Lifu Zhou

    IPC: G11B7/00 ,  C23F1/00 ,  G02B6/34

    CPC classification number: G11B7/1384

    Abstract: An apparatus includes a waveguide including a core layer and first and second cladding layers positioned on opposite sides of the core layer, a plurality of slots extending through the core layer and into the first and second cladding layers, a filler material in the slots, wherein the core has a first refractive index, the cladding layers have a second refractive index lower than the first refractive index, and the filler material has a third refractive index between the first and second refractive indices, and a light source positioned to direct light onto the slots. A data storage device that includes the apparatus is also provided.

    Abstract translation: 一种设备包括：波导，其包括芯层和位于芯层相对侧上的第一和第二覆层;多个狭槽，其延伸穿过芯层并进入第一和第二覆层;槽中的填充材料， 所述芯具有第一折射率，所述包层具有低于所述第一折射率的第二折射率，并且所述填充材料具有所述第一折射率和所述第二折射率之间的第三折射率，以及定位成将光引导到所述第一折射率的光源 插槽 还提供了包括该装置的数据存储装置。

    Grating Assisted Surface Emitter Laser Coupling For Heat Assisted Magnetic Recording
    2.
    发明申请
    Grating Assisted Surface Emitter Laser Coupling For Heat Assisted Magnetic Recording 有权
    光辅助表面发射器激光耦合用于热辅助磁记录

    公开(公告)号：US20120201491A1

    公开(公告)日：2012-08-09

    申请号：US13020033

    申请日：2011-02-03

    Applicant: Lifu Zhou

    Inventor： Lifu Zhou

    IPC: G02B6/122

    CPC classification number: G11B5/314 ,  G02B6/124 ,  G11B5/6088 ,  G11B2005/0021

    Abstract: An apparatus includes a waveguide, a laser diode positioned adjacent to the waveguide and having an active region producing light in a plane substantially parallel to a plane of the waveguide, a first grating positioned to couple light out of the laser diode and to direct the light toward the waveguide, a reflective layer positioned adjacent to a side of the first grating opposite to the waveguide, and a second grating having the same period as the first grating and positioned to couple light into the waveguide. A data storage device that includes the apparatus is also provided.

    Abstract translation: 一种设备包括：波导，与波导相邻定位的激光二极管，并且具有在基本上平行于波导的平面的平面中产生光的有源区;定位成将光耦合到激光二极管外并引导光 朝向波导，邻近于与波导相对的第一光栅的一侧定位的反射层，以及与第一光栅具有相同周期的第二光栅，并且定位成将光耦合到波导中。 还提供了包括该装置的数据存储装置。

    Heat assisted magnetic recording using surface-emitting distributed feedback laser
    4.
    发明授权
    Heat assisted magnetic recording using surface-emitting distributed feedback laser 有权
    使用表面发射分布反馈激光器进行热辅助磁记录

    公开(公告)号：US08477571B1

    公开(公告)日：2013-07-02

    申请号：US13431184

    申请日：2012-03-27

    Applicant: Delai Zhou ,  Tim Rausch ,  Lifu Zhou ,  Michael Allen Seigler

    Inventor： Delai Zhou ,  Tim Rausch ,  Lifu Zhou ,  Michael Allen Seigler

    IPC: G11B11/00

    CPC classification number: G11B5/6088 ,  G11B5/3133 ,  G11B2005/0021

    Abstract: A device includes a body, a waveguide, and a near field transducer (NFT). The body has opposed first and second surfaces. The waveguide is adapted to receive light and convey the light to a distal end of the waveguide. The NFT is disposed proximate the distal end, and it has an output end proximate the first surface of the body. The device further includes a surface-emitting distributed feedback (SE-DFB) laser that is mounted on and attached to the body and positioned to inject laser light into the waveguide. The device may be a recording head, and the laser, the waveguide, and the NFT may cooperate to provide electromagnetic heating to a substrate for heat assisted magnetic recording.

    Abstract translation: 一种装置包括主体，波导和近场换能器（NFT）。 主体相对于第一和第二表面。 波导适于接收光并将光传送到波导的远端。 NFT设置在远端附近，并且其具有靠近身体的第一表面的输出端。 该器件还包括表面发射分布反馈（SE-DFB）激光器，其被安装在主体上并附着到主体上并定位成将激光注入到波导中。 该装置可以是记录头，并且激光，波导和NFT可以协作以向用于热辅助磁记录的基板提供电磁加热。

    Grating assisted surface emitter laser coupling for heat assisted magnetic recording
    7.
    发明授权
    Grating assisted surface emitter laser coupling for heat assisted magnetic recording 有权
    光栅辅助表面发射激光耦合用于热辅助磁记录

    公开(公告)号：US08577193B2

    公开(公告)日：2013-11-05

    申请号：US13020033

    申请日：2011-02-03

    Applicant: Lifu Zhou

    Inventor： Lifu Zhou

    IPC: G02B6/34

    CPC classification number: G11B5/314 ,  G02B6/124 ,  G11B5/6088 ,  G11B2005/0021

    Abstract: An apparatus includes a waveguide, a laser diode positioned adjacent to the waveguide and having an active region producing light in a plane substantially parallel to a plane of the waveguide, a first grating positioned to couple light out of the laser diode and to direct the light toward the waveguide, a reflective layer positioned adjacent to a side of the first grating opposite to the waveguide, and a second grating having the same period as the first grating and positioned to couple light into the waveguide. A data storage device that includes the apparatus is also provided.

    Abstract translation: 一种设备包括：波导，与波导相邻定位的激光二极管，并且具有在基本上平行于波导的平面的平面中产生光的有源区;定位成将光耦合到激光二极管外并引导光 朝向波导，邻近于与波导相对的第一光栅的一侧定位的反射层，以及与第一光栅具有相同周期的第二光栅，并且定位成将光耦合到波导中。 还提供了包括该装置的数据存储装置。

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