公开(公告)号：US09536555B1

公开(公告)日：2017-01-03

申请号：US15007772

申请日：2016-01-27

Applicant: Seagate Technology LLC

Inventor： John Charles Duda ,  James Gary Wessel

IPC: G11B5/02 ,  G11B5/60 ,  G11B5/00

CPC classification number: G11B5/6076 ,  G11B5/455 ,  G11B5/4866 ,  G11B5/6052 ,  G11B5/607 ,  G11B5/6088 ,  G11B2005/0021

Abstract: An apparatus comprises a slider and an optical waveguide formed in the slider and configured to receive light from a laser source. A near-field transducer (NFT) is formed on the slider at or near an air bearing surface (ABS) of the slider and optically coupled to the waveguide. A bolometric sensor is positioned proximate the NFT and exposed to at least some of the light. The bolometric sensor is configured to detect changes in output optical power of the laser source and contact between the slider and a magnetic recording medium.

Abstract translation: 一种装置包括滑块和形成在滑块中的光波导，并被配置为接收来自激光源的光。 在滑块上或附近的滑动件的空气轴承表面（ABS）处形成近场换能器（NFT），并且光学耦合到波导。 辐射传感器位于NFT附近并暴露于至少一些光。 测量传感器被配置为检测激光源的输出光功率的变化和滑块与磁记录介质之间的接触。