Invention Application
- Patent Title: Laser Feedback Suppressor for Heat-Assisted Magnetic Recording
-
Application No.: US17546855Application Date: 2021-12-09
-
Publication No.: US20220101879A1Publication Date: 2022-03-31
- Inventor: Aidan Dominic Goggin , John Moloney , Reyad Mehfuz , Chuan Zhong , Christopher Neil Harvey
- Applicant: Seagate Technology LLC
- Applicant Address: US CA Fremont
- Assignee: Seagate Technology LLC
- Current Assignee: Seagate Technology LLC
- Current Assignee Address: US CA Fremont
- Main IPC: G11B13/08
- IPC: G11B13/08 ; G11B5/48

Abstract:
A recording head includes a channel waveguide that delivers light to a media-facing surface. A near-field transducer (NFT) is at an end of the channel waveguide and proximate to the media-facing surface. A laser including an active region has a longitudinal axis corresponding to a propagation direction of the channel waveguide. The active region includes a back facet and a front facet proximate the NFT. The front facet has a surface shape configured to suppress back reflection of the light.
Public/Granted literature
- US11817119B2 Laser feedback suppressor for heat-assisted magnetic recording Public/Granted day:2023-11-14
Information query
IPC分类: