公开(公告)号：US10002626B1

公开(公告)日：2018-06-19

申请号：US15493306

申请日：2017-04-21

Applicant: Seagate Technology LLC

Inventor： Yuhang Cheng ,  Chubing Peng ,  Tae-Woo Lee ,  Xiaoyue Huang ,  Song Chen

IPC: G11B11/00 ,  G11B5/31 ,  G11B5/48

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

Abstract: A waveguide core extends from an input coupler towards a media-facing surface of a read/write head. A cap is located between a terminating end of the waveguide core and the media-facing surface. The cap is formed of a high index of refraction, high-corrosion resistant material that is different than a material used to form the waveguide core. A near-field transducer is proximate the cap in a down-track direction. A head overcoat on the media-facing surface covers the cap.

公开(公告)号：US09837112B2

公开(公告)日：2017-12-05

申请号：US14709705

申请日：2015-05-12

Applicant: Seagate Technology LLC

Inventor： Ruoxi Yang ,  James Gary Wessel ,  Rachel Frakie ,  Chubing Peng ,  Werner Scholz ,  Chris Rea ,  Zoran Jandric ,  Mourad Benakli ,  Tae-Woo Lee

IPC: G11B5/60 ,  G11B5/48 ,  G02B6/02 ,  G11B7/24062 ,  G11B5/31 ,  G11B5/00 ,  G02B6/122 ,  G02B6/12

CPC classification number: G11B5/6088 ,  G02B6/02042 ,  G02B6/02052 ,  G02B6/1226 ,  G02B2006/12121 ,  G11B5/3133 ,  G11B5/314 ,  G11B5/4866 ,  G11B7/24062 ,  G11B2005/0021

Abstract: An apparatus is includes a near field transducer positioned adjacent a media-facing surface and at the end of a waveguide having at least one core layer and a cladding layer. The apparatus also includes at least one optical reflector positioned adjacent opposing cross-track edges of the near field transducer and/or adjacent a down-track side of the near-field transducer.

公开(公告)号：US09759863B1

公开(公告)日：2017-09-12

申请号：US15145905

申请日：2016-05-04

Applicant: Seagate Technology LLC

Inventor： Chubing Peng ,  Mark Ostrowski ,  Chang Xie ,  Tae-Woo Lee ,  Lisa M. Hanson

IPC: G02B6/26 ,  G02B6/42 ,  G02B6/14 ,  G02B6/122 ,  G02B6/028 ,  G02B6/12 ,  G11B5/31

CPC classification number: G02B6/14 ,  G02B6/0283 ,  G02B6/1228 ,  G02B2006/12147 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

Abstract: A waveguide a core extending along a light propagation and a coupling layer adjacent one side of the core along the light propagation direction. A gradient index material is adjacent to at least one side of the coupling layer. The gradient index material has a first refractive index proximate the coupling layer and a second refractive index away from the coupling layer. The gradient index material is configured to direct light from an input facet to the core layer.

公开(公告)号：US09659591B1

公开(公告)日：2017-05-23

申请号：US14995754

申请日：2016-01-14

Applicant: Seagate Technology LLC

Inventor： Chubing Peng

IPC: G11B11/00 ,  G11B5/48 ,  G11B5/00 ,  G11B7/1387 ,  G11B11/105 ,  G11B5/60

CPC classification number: G11B5/4866 ,  G11B5/105 ,  G11B5/314 ,  G11B5/6088 ,  G11B7/1387 ,  G11B11/10506 ,  G11B11/1051 ,  G11B11/10536 ,  G11B2005/0021

Abstract: A recording head includes a near-field transducer located an oblique angle to a media-facing surface. The near-field transducer includes an enlarged portion and a peg extending from the enlarged portion towards the media-facing surface at a normal angle. An input waveguide of the recording head receives energy from an energy source, and an output waveguide delivers the energy to near-field transducer at the oblique angle. The output waveguide is oriented at the oblique angle. A bent waveguide with a polynomial spiral shape joins the input waveguide and the output waveguide.

公开(公告)号：US09632242B2

公开(公告)日：2017-04-25

申请号：US13779853

申请日：2013-02-28

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Chubing Peng

IPC: G11B11/00 ,  G02B6/028 ,  G11B13/04 ,  G11B5/31 ,  G02B6/42 ,  G02B6/122 ,  G11B5/012 ,  G11B5/00 ,  G02B6/12

CPC classification number: G02B6/0285 ,  G02B6/1228 ,  G02B6/42 ,  G02B2006/12095 ,  G11B5/012 ,  G11B5/314 ,  G11B13/04 ,  G11B2005/0021

Abstract: A waveguide that includes a first cladding layer, the first cladding layer having an index of refraction, n3; a gradient index layer positioned adjacent the first cladding layer; an assist layer positioned adjacent the gradient index layer, the assist layer having an index of refraction, n2; a core layer positioned adjacent the assist layer, the core layer having an index of refraction, n1; and a second cladding layer, the second cladding layer having an index of refraction, n4, wherein n1 is greater than n2, n3, and n4; and n2 is greater than n3 and n4.

公开(公告)号：US20170084298A1

公开(公告)日：2017-03-23

申请号：US14863096

申请日：2015-09-23

Applicant: Seagate Technology LLC

Inventor： Chubing Peng

IPC: G11B5/48 ,  G02B6/12 ,  G02B6/122

CPC classification number: G11B5/4866 ,  G02B6/12002 ,  G02B6/1228 ,  G02B2006/12038 ,  G02B2006/12147 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

Abstract: An apparatus includes a waveguide extending along a light-propagation direction between a light source and a media-facing surface. An assistant layer is configured to receive light from a light source, the assistant layer has a terminating end with a first taper that narrows toward the media-facing surface. A core layer has a coupling end configured to receive light from the assistant layer, the coupling end having a second taper that widens toward the media-facing surface. A middle cladding layer is disposed between the core layer and the assistant layer. A near field transducer is disposed proximate the media-facing surface and configured to receive the light from the core layer.

公开(公告)号：US09424867B2

公开(公告)日：2016-08-23

申请号：US14886259

申请日：2015-10-19

Applicant: Seagate Technology LLC

Inventor： Chubing Peng

IPC: G11B5/02 ,  G11B11/00 ,  G11B5/48 ,  G11B5/00

CPC classification number: G11B5/4866 ,  G02B6/1226 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

Abstract: A method involves receiving light from a light source at a fundamental transverse electric (TE00) mode or a fundamental transverse magnetic (TM00) mode. A waveguide polarization multiplexes the light to a combined mode that includes the TM00 mode and a first higher-order transverse electric (TE10) mode. A near-field transducer is excited via the light at the combined mode.

Abstract translation: 一种方法包括以基本横向电（TE00）模式或基本横向磁（TM00）模式从光源接收光。 波导极化将光复用到包括TM00模式和第一高阶横向电（TE10）模式的组合模式。 通过组合模式下的光激发近场换能器。

公开(公告)号：US20160163341A1

公开(公告)日：2016-06-09

申请号：US14955373

申请日：2015-12-01

Applicant: Seagate Technology LLC

Inventor： Lina Cao ,  Chubing Peng ,  Werner Scholz ,  Pierre Asselin ,  Tae-Woo Lee

IPC: G11B5/48

CPC classification number: G11B5/4866 ,  G02B6/122 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

Abstract: An apparatus has an input surface configured to receive energy emitted from an energy source in a first mode. A mode order converter is configured to convert the energy from the first mode to a second mode. The waveguide of the apparatus has an input end disposed proximate the input surface and configured to receive the energy in the first mode. The waveguide has an output end disposed proximate a media-facing surface and configured to deliver energy in the second mode. The output end is at an oblique angle to a cross-track line at an intersection of the media-facing surface and a substrate-parallel plane.

Abstract translation: 一种装置具有被配置为在第一模式中从能量源发射的能量的输入表面。 模式顺序转换器被配置为将来自第一模式的能量转换为第二模式。 设备的波导具有设置在输入表面附近并被配置为在第一模式中接收能量的输入端。 波导具有靠近面向介质的表面设置的输出端，并且被配置为在第二模式中传递能量。 输出端与介质相对表面和基板平行平面的交叉点处的交叉轨道线成倾斜角。

公开(公告)号：US09355662B2

公开(公告)日：2016-05-31

申请号：US14728140

申请日：2015-06-02

Applicant: Seagate Technology LLC

Inventor： Chubing Peng ,  Yongjun Zhao

IPC: G02B6/00 ,  G11B5/48 ,  G11B5/31 ,  G02B6/126 ,  G02B6/27 ,  G11B5/00

CPC classification number: G11B5/4866 ,  G02B6/126 ,  G02B6/2726 ,  G02B6/274 ,  G11B5/314 ,  G11B2005/0021

Abstract: A polarization rotator for a recording head. The polarization rotator comprises a first waveguide coupled to an input coupler at a first end and a second waveguide. The first waveguide is offset from the second waveguide and a second end of the first waveguide is coupled to a second end of the second waveguide.

Abstract translation: 一种用于记录头的偏振旋转器。 偏振旋转器包括在第一端和第二波导处耦合到输入耦合器的第一波导。 第一波导偏离第二波导，并且第一波导的第二端耦合到第二波导的第二端。

公开(公告)号：US09316783B2

公开(公告)日：2016-04-19

申请号：US14522872

申请日：2014-10-24

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Chubing Peng

IPC: G11B11/00 ,  G02B6/028 ,  F21V8/00 ,  G11B13/08 ,  G11B5/31 ,  G11B5/00 ,  G02B6/122

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的材料n2; 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。