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公开(公告)号：US20240013806A1
公开(公告)日：2024-01-11
申请号：US18371146
申请日：2023-09-21
Applicant: Seagate Technology LLC
Inventor： Aidan Dominic Goggin , John Moloney , Reyad Mehfuz , Chuan Zhong , Christopher Neil Harvey
CPC classification number: G11B13/08 , G11B5/4866 , G11B5/6088
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.
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Patent Agency Ranking
公开(公告)号：US20220101879A1
公开(公告)日：2022-03-31
申请号：US17546855
申请日：2021-12-09
Applicant: Seagate Technology LLC
Inventor： Aidan Dominic Goggin , John Moloney , Reyad Mehfuz , Chuan Zhong , Christopher Neil Harvey
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.
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公开(公告)号：US12106771B2
公开(公告)日：2024-10-01
申请号：US18371146
申请日：2023-09-21
Applicant: Seagate Technology LLC
Inventor： Aidan Dominic Goggin , John Moloney , Reyad Mehfuz , Chuan Zhong , Christopher Neil Harvey
IPC: G11B5/48 , G11B13/08 , G11B5/00 , G11B5/60 , G11B11/105
CPC classification number: G11B13/08 , G11B5/4866 , G11B2005/0021 , G11B5/6088 , G11B11/105
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.
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公开(公告)号：US11176962B1
公开(公告)日：2021-11-16
申请号：US17017167
申请日：2020-09-10
Applicant: Seagate Technology LLC
Inventor： Aidan Dominic Goggin , Reyad Mehfuz , John Moloney
IPC: G11B11/105 , G11B5/48 , H01S5/10 , G11B5/00 , G11B5/60
Abstract: A heat-assisted magnetic recording head includes a slider body having a waveguide that delivers light to a near-field transducer. The waveguide is optically coupled to an input coupler a of the slider body that receives the light. A laser diode is mounted on or in the slider body. The laser diode has an integral exit facet proximate the input coupler. The exit facet has a curved profile that modifies a shape of the light emitted from the exit facet into the input coupler.
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公开(公告)号：US11817119B2
公开(公告)日：2023-11-14
申请号：US17546855
申请日：2021-12-09
Applicant: Seagate Technology LLC
Inventor： Aidan Dominic Goggin , John Moloney , Reyad Mehfuz , Chuan Zhong , Christopher Neil Harvey
CPC classification number: G11B13/08 , G11B5/4866 , G11B5/6088 , G11B11/105 , G11B2005/0021
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.
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公开(公告)号：US11227633B1
公开(公告)日：2022-01-18
申请号：US17082360
申请日：2020-10-28
Applicant: Seagate Technology LLC
Inventor： Aidan Dominic Goggin , John Moloney , Reyad Mehfuz , Chuan Zhong , Christopher Neil Harvey
IPC: G11B11/105 , G11B13/08 , G11B5/48 , G11B5/60 , G11B5/00
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.
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