Invention Grant
US08649245B2 Direct waveguide light delivery to NFT for heat assisted magnetic recording
有权
直接波导光传输到NFT进行热辅助磁记录
- Patent Title: Direct waveguide light delivery to NFT for heat assisted magnetic recording
- Patent Title (中): 直接波导光传输到NFT进行热辅助磁记录
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Application No.: US12749102Application Date: 2010-03-29
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Publication No.: US08649245B2Publication Date: 2014-02-11
- Inventor: Arkadi Goulakov , Kaizhong Gao , Xuhui Jin
- Applicant: Arkadi Goulakov , Kaizhong Gao , Xuhui Jin
- Applicant Address: US CA Cupertino
- Assignee: Seagate Technology LLC
- Current Assignee: Seagate Technology LLC
- Current Assignee Address: US CA Cupertino
- Agency: HolzerIPLaw, PC
- Main IPC: G11B11/00
- IPC: G11B11/00

Abstract:
A magnetic recording head comprises a write pole having a pole tip adjacent to an air bearing surface, a return pole, an optical near field transducer positioned adjacent the pole tip and an air bearing surface for exposing a portion of a magnetic storage medium to high energy radiation. The energy is directly provided to the near field transducer by a ridge waveguide with tapered coupling elements, by a two dimensional straight or curved waveguide with a beveled end with a metal/dielectric coating for delivering energy to the near field transducer, or by a curved waveguide. The waveguide with tapered coupling elements or with beveled end can be fabricated by means of conventional wafer processing.
Public/Granted literature
- US20110235480A1 DIRECT WAVEGUIDE LIGHT DELIVERY TO NFT FOR HEAT ASSISTED MAGNETIC RECORDING Public/Granted day:2011-09-29
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