Invention Grant
- Patent Title: Polynomial spiral waveguide that facilitates coupling light to a near-field transducer at an oblique angle
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Application No.: US14995754Application Date: 2016-01-14
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Publication No.: US09659591B1Publication Date: 2017-05-23
- Inventor: Chubing Peng
- Applicant: Seagate Technology LLC
- Applicant Address: US CA Cupertino
- Assignee: SEAGATE TECHNOLOGY LLC
- Current Assignee: SEAGATE TECHNOLOGY LLC
- Current Assignee Address: US CA Cupertino
- Agency: Hollingsworth Davis, LLC
- Main IPC: G11B11/00
- IPC: G11B11/00 ; G11B5/48 ; G11B5/00 ; G11B7/1387 ; G11B11/105 ; G11B5/60

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.
Information query
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