公开(公告)号：US10770106B1

公开(公告)日：2020-09-08

申请号：US16724569

申请日：2019-12-23

Applicant: Seagate Technology LLC

Inventor： Drew Michael Mader ,  Tim Rausch ,  Josh Ward Christensen

IPC: G11B5/02 ,  G11B7/126 ,  G11B5/40 ,  G11B5/012 ,  G11B5/455 ,  G11B11/105 ,  G11B11/00 ,  G11B5/60 ,  G11B20/18 ,  G11B7/1387 ,  G11B7/1263 ,  G11B7/1267 ,  G11B5/00

Abstract: A heat-assisted recording head is moved onto a ramp such that the recording head is thermally isolated from a moving disk. A heating device is activated on the recording head to cause the recording head to obtain a high temperature that is not obtainable when proximate to the moving disk. The recording head is moved over the moving disk such that the recording head reaches an operating temperature that is below the high temperature. One or more temperatures between the high temperature and the operational temperature are determined at which a laser of the recording head experiences mode-hopping. The one or more temperatures are stored and accessed by a controller to mitigate mode hopes during an operation of the recording head.