公开(公告)号：US09502069B2

公开(公告)日：2016-11-22

申请号：US14624079

申请日：2015-02-17

Applicant: Seagate Technology LLC

Inventor： Chubing Peng ,  Yongjun Zhao

IPC: G02B6/26 ,  G02B6/42 ,  B29D11/00 ,  G11B7/22 ,  G11B5/31 ,  G11B5/60 ,  G02B6/28 ,  G11B7/1387 ,  G11B5/00

CPC classification number: G11B7/22 ,  G02B6/262 ,  G02B6/2817 ,  G02B6/4206 ,  G02B6/4214 ,  G02B6/4298 ,  G11B5/314 ,  G11B5/6088 ,  G11B7/1387 ,  G11B2005/0021

Abstract: A plasmonic transducer includes at least two metal elements with a gap therebetween. The metal elements are elongated along a plasmon-enhanced, near-field radiation delivery axis. Cross sections of the metal elements in a plane normal to the delivery axis vary in shape along the delivery axis. A waveguide is disposed along an elongated side of the plasmonic transducer. The waveguide is optically coupled to the plasmonic transducer along the elongated side.

公开(公告)号：US09384770B2

公开(公告)日：2016-07-05

申请号：US13961638

申请日：2013-08-07

Applicant: Seagate Technology LLC

Inventor： Weibin Chen ,  Chubing Peng ,  Werner Scholz

IPC: G11B13/08 ,  G11B5/60 ,  G11B5/31 ,  G11B5/00

CPC classification number: G11B5/3133 ,  G11B5/314 ,  G11B5/4866 ,  G11B5/6088 ,  G11B2005/0021

Abstract: A near-field transducer includes an enlarged region having a top side adjacent to a magnetic pole, a base side opposite the top side, and a circumference that extends from proximal to a media-facing surface to distal to a media-facing surface. The near-field transducer includes a peg region in contact with a region of the base side of the enlarged region, the peg region extending from the enlarged region towards the media-facing surface. The near-field transducer also includes a heat sink region having a contact side, a base side, and a circumference that extends from proximal to the media-facing surface to distal from the media-facing surface. The contact side of the heat sink region is in thermal contact with both the peg region and at least a region of the base side of the enlarged region.

Abstract translation: 近场换能器包括具有与磁极相邻的顶侧的扩大区域，与顶侧相对的底侧，以及从近侧到面向介质的表面延伸到面向介质的表面的远侧的圆周。 近场换能器包括与扩大区域的基部侧的区域接触的钉区域，钉区域从扩大区域延伸朝向介质面向表面。 近场换能器还包括具有接触侧，底侧和从近侧到面向介质的表面延伸到远离介质面向表面的圆周的散热区。 散热片区域的接触侧与扩大区域的至少一个区域和基部侧的区域热接触。

公开(公告)号：US09201178B2

公开(公告)日：2015-12-01

申请号：US13797797

申请日：2013-03-12

Applicant: Seagate Technology LLC

Inventor： Chubing Peng ,  Kaizhong Gao ,  Frank Edgar Stageberg

IPC: G02B5/10 ,  G02B19/00 ,  G11B5/10 ,  G11B5/31 ,  G11B5/00

CPC classification number: G02B5/10 ,  G02B19/0023 ,  G02B19/0052 ,  G11B5/102 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

Abstract: A planar collimator has first and second sections each intersecting at a junction between a first axis and a second axis normal to the first axis. Each of the first and second sections have geometries configured to receive light from a source point located on the first axis and collimate the light at respective positive and negative tilting angles relative to the second axis. The first and second sections direct the collimated light to respective first and second sides of a focusing mirror and away from a gap between the first and second sides of the focusing mirror.

Abstract translation: 平面准直器具有第一和第二部分，每个部分在与第一轴线垂直的第一轴线和第二轴线之间的接合处相交。 第一和第二部分中的每一个具有被配置为接收来自位于第一轴线上的源点的光的几何形状，并以相对于第二轴线的相应的正和负倾斜角准直光。 第一和第二部分将准直光引导到聚焦反射镜的相应的第一和第二侧并远离聚焦镜的第一和第二侧之间的间隙。

公开(公告)号：US09047912B1

公开(公告)日：2015-06-02

申请号：US14492862

申请日：2014-09-22

Applicant: Seagate Technology LLC

Inventor： Chubing Peng ,  Yi-Kuei Ryan Wu

IPC: G11B11/24 ,  G11B11/10

CPC classification number: G11B11/24 ,  G02B6/00 ,  G02B6/12002 ,  G02B6/1228 ,  G02B2006/12147 ,  G11B5/314 ,  G11B5/6088 ,  G11B11/10 ,  G11B2005/0021

Abstract: A write head includes a three-dimensional waveguide extending along a light-propagation direction. The three-dimensional waveguide is configured to receive light from a light source at a fundamental transverse electric (TE) mode. The three-dimensional waveguide includes an input coupler, a curved middle section, and a terminating end. The input coupler is tapered between the light source and the curved middle section. The write head includes a dual-mode waveguide extending along the light propagation direction and has an edge proximate to and separated from the curved section by a gap at a coupling region. The three-dimensional waveguide excites a higher-order TE mode in the dual-mode waveguide via the coupling region.

Abstract translation: 写头包括沿光传播方向延伸的三维波导。 三维波导被配置为以基本横向电（TE）模式从光源接收光。 三维波导包括输入耦合器，弯曲中间部分和终止端。 输入耦合器在光源和弯曲中间部分之间呈锥形。 写头包括沿着光传播方向延伸的双模波导，并且在耦合区域处具有靠近并与弯曲部分分离的边缘的间隙。 三维波导通过耦合区域激发双模波导中的高阶TE模式。

公开(公告)号：US08971159B2

公开(公告)日：2015-03-03

申请号：US13890121

申请日：2013-05-08

Applicant: Seagate Technology LLC

Inventor： Bernard W. Bell ,  Chubing Peng

IPC: G11B11/105 ,  G11B13/08 ,  G11B5/48 ,  G11B5/00

CPC classification number: G11B13/08 ,  G11B5/314 ,  G11B5/4866 ,  G11B5/6088 ,  G11B11/105 ,  G11B11/10536 ,  G11B2005/0021

Abstract: A light delivery system in a slider includes a channel waveguide, a mode-index refractive surface, a solid immersion mirror, and a near field transducer. The mode-index refractive surface shapes the angular spectrum of the light on its path to the solid immersion mirror in a manner so as to change the distribution of light energy focused on to the near field transducer.

Abstract translation: 滑块中的光输送系统包括通道波导，模式折射率折射表面，固体浸没镜和近场换能器。 模式折射率折射表面以使得聚焦到近场传感器上的光能的分布改变的方式将光在其到固体浸没镜的路径上的角度光谱形状化。

公开(公告)号：US20150043877A1

公开(公告)日：2015-02-12

申请号：US14522872

申请日：2014-10-24

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Chubing Peng

IPC: G02B6/028

CPC classification number: G02B6/028 ,  G02B6/0065 ,  G02B6/122 ,  G11B5/314 ,  G11B13/08 ,  G11B2005/0021

Abstract: A waveguide including a top cladding layer, the top cladding layer including a material having an index of refraction, n1; an assistant layer, the assistant layer positioned adjacent the top cladding layer, the assistant layer including a material having an index of refraction, n2; a core layer, the core layer positioned adjacent the assistant layer, the core layer including a material having an index of refraction, n3; and a bottom cladding layer, the bottom cladding layer positioned adjacent the core layer, the bottom cladding layer including a material having an index of refraction, n4, wherein n1 is less than both n2 and n3, n3 is greater than n1 and n4, and n4 is less than n3 and n2.

Abstract translation: 包括顶部包层的波导，所述顶部包层包括具有折射率的材料，n1; 辅助层，辅助层位于顶层包层附近，辅助层包括具有折射率n2的材料; 芯层，芯层位于辅助层附近，芯层包括具有折射率的材料n3; 以及下包层，所述底包层位于所述芯层附近，所述底包层包括具有折射率的材料，n4，其中n1小于n2和n3，n3大于n1和n4，以及 n4小于n3和n2。

公开(公告)号：US08953420B1

公开(公告)日：2015-02-10

申请号：US14024307

申请日：2013-09-11

Applicant: Seagate Technology LLC

Inventor： Chubing Peng

IPC: G11B11/105 ,  G11B5/48 ,  G11B5/56 ,  G11B13/04 ,  G11B5/60 ,  G11B5/00

CPC classification number: G11B11/105 ,  G11B5/105 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

Abstract: Light is guided from a light source into a waveguide coupler embedded in a slider. The light source is capable of being positioned in a cross-track, a down-track, and a vertical direction with regards to the waveguide coupler. The light emanating from an air-bearing surface of the slider is imaged using a device that generates an optical image of the air-bearing surface. A cross-track alignment position is identified as a location at which the image shows substantially the same number of photons on each side of the cross-track alignment position and has a minimum spread. A down-track alignment position is identified at which the light emanating from the air-bearing surface has maximal intensity in a down-track direction.

Abstract translation: 光从光源引导到嵌入在滑块中的波导耦合器。 光源能够相对于波导耦合器定位在交叉轨道，下轨道和垂直方向上。 使用产生空气轴承表面的光学图像的装置对从滑块的空气轴承表面发出的光成像。 跨轨道对准位置被识别为图像在跨轨道对准位置的每一侧上显示基本相同数量的光子并具有最小扩展的位置。 识别从空气轴承表面发出的光沿下行方向具有最大强度的下轨道对准位置。

公开(公告)号：US20150036137A1

公开(公告)日：2015-02-05

申请号：US13959440

申请日：2013-08-05

Applicant: Seagate Technology LLC

Inventor： Chubing Peng ,  Amit Sharma ,  Kaspar Ko

IPC: G01B9/00

CPC classification number: G11B5/3166 ,  G11B5/105 ,  G11B2005/0021

Abstract: Alignment of a near field transducer (NFT) optical input coupler and a light emitting device involves providing excitation radiation from an excitation light source through an optical input coupler to the NFT and filtering output radiation from the NFT using a short wavelength pass optical filter. The optical input coupler is scanned through multiple positions while the photoluminescent radiation is detected. A first alignment position between the NFT input coupler and the excitation light source is identified based on the detected photoluminescent radiation. A light emitting device is scanned through multiple positions the light output is detected by a detector. A second alignment position between the light emitting device and the detector is identified. The first and second alignment positions are used to align the light emitting device with the optical input coupler.

Abstract translation: 近场传感器（NFT）光输入耦合器和发光器件的对准涉及通过光输入耦合器将激发光源通过光输入耦合器提供给NFT，并使用短波长通滤光片滤波来自NFT的输出辐射。 当检测到光致发光辐射时，光输入耦合器被扫描多个位置。 基于检测到的光致发光辐射来识别NFT输入耦合器和激发光源之间的第一对准位置。 通过检测器检测出光输出的多个位置扫描发光器件。 识别发光器件和检测器之间的第二对准位置。 第一和第二对准位置用于将发光器件与光输入耦合器对准。

公开(公告)号：US20140307533A1

公开(公告)日：2014-10-16

申请号：US13931019

申请日：2013-06-28

Applicant: Seagate Technology LLC

Inventor： Chubing Peng

IPC: G11B5/48 ,  G11B13/04

CPC classification number: G11B5/4866 ,  G11B5/105 ,  G11B11/10539 ,  G11B13/045 ,  G11B2005/0021

Abstract: An approach for aligning a light source on a slider involves filtering light emerging from the air bearing surface of a (ABS) of a heat assisted magnetic recording (HAMR) slider. A first portion of the emerging light is emitted by a near field transducer in response to optical excitation and has a component having a first polarization state. A second portion of the emerging light including stray light has polarization states different from the first polarization state. The polarizing filter substantially transmits light having the first polarization state and substantially rejects light having a polarization state orthogonal to the first polarization state. Alignment coordinates for the light source are determined based on the light transmitted through the polarizing filter.

Abstract translation: 用于对准滑块上的光源的方法包括过滤从热辅助磁记录（HAMR）滑块的（ABS）的空气支承表面出射的光。 出射光的第一部分响应于光学激发由近场传感器发射，并且具有具有第一偏振状态的分量。 包括杂散光的出射光的第二部分具有与第一偏振态不同的偏振状态。 偏振滤光器基本透射具有第一偏振态的光，并基本上抑制具有与第一偏振态正交的偏振状态的光。 基于通过偏振滤光器透射的光来确定光源的对准坐标。

公开(公告)号：US08750081B1

公开(公告)日：2014-06-10

申请号：US13722036

申请日：2012-12-20

Applicant: Seagate Technology LLC

Inventor： Chubing Peng ,  Edward Charles Gage

IPC: G11B11/00

CPC classification number: G11B13/04 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

Abstract: A light delivery system in a slider includes a channel waveguide, a solid immersion mirror, a near field transducer, and a planar waveguide assembly. The solid immersion mirror focuses light to the near field transducer. In one implementation, the slider includes a first reflective element and a second reflective element formed in the slider to induce an offset between a light source and the near field transducer. The reflective elements redirect light received from a light source between the reflective elements to a focusing element (e.g., a solid immersion mirror) focused on a near field transducer. The reflective elements translate the light in accordance with the offset between the light source and the near field transducer.

Abstract translation: 滑块中的光输送系统包括通道波导，固体浸没镜，近场换能器和平面波导组件。 固体浸没镜将光聚焦到近场传感器。 在一个实施方案中，滑块包括形成在滑动件中的第一反射元件和第二反射元件，以引起光源和近场换能器之间的偏移。 反射元件将从光源接收的光反射到聚焦在近场换能器上的聚焦元件（例如，固体浸没镜）之间。 反射元件根据光源和近场传感器之间的偏移平移光。