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公开(公告)号：US09590390B1
公开(公告)日：2017-03-07
申请号：US15004239
申请日：2016-01-22
Applicant: Seagate Technology LLC
Inventor： Karim Tatah , Scott Eugene Olson
IPC: H01S5/06 , H01S5/068 , H01S5/10 , H01S5/0625 , H01S5/50
CPC classification number: H01S5/5027 , G11B5/314 , G11B2005/0021 , H01S5/0625 , H01S5/1021 , H01S5/1039 , H01S5/5018 , H01S2301/163
Abstract: A laser diode has a first gain section having a first length and a second gain section having a second length and aligned with the first gain section. The second gain section is aligned with and coupled to the first gain section along a light output direction. The second length is an integer multiple m of the first length, where m is greater than one.
Abstract translation: 激光二极管具有具有第一长度的第一增益部分和具有第二长度并与第一增益部分对准的第二增益部分。 第二增益部分沿着光输出方向与第一增益部分对准并耦合到第一增益部分。 第二长度是第一长度的整数倍，其中m大于1。
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公开(公告)号：US09484047B2
公开(公告)日：2016-11-01
申请号：US15052987
申请日：2016-02-25
Applicant: Seagate Technology LLC
Inventor： Brent C. Roeger , Karim Tatah
CPC classification number: G11B5/1272 , B23K1/0056 , B23K26/0643 , B23K26/0648 , B23K26/0652 , B23K26/073 , G11B5/105 , G11B5/4806 , G11B2005/0021
Abstract: An attachable optical component is aligned with a base optical component. The attachable optical component has a mounting surface interfacing with the base optical component and an exposed surface opposed to the mounting surface. Laser light is directed to the exposed surface of the attachable optical component for delivery to the mounting surface. The attachable optical component guides and homogenizes the laser light delivered to the mounting surface and uniformly heats a bonding feature between the mounting surface and the base optical component. The directing and subsequent removing of the laser light bonds the attachable optical component to the base optical component via the bonding feature
Abstract translation: 可附接的光学部件与基底光学部件对准。 可附接光学部件具有与基部光学部件相对的安装面和与安装面相对的露出面。 激光被引导到可附接的光学部件的暴露表面，以便传送到安装表面。 可安装的光学部件引导和均化传送到安装表面的激光，并均匀地加热安装表面和基底光学部件之间的接合特征。 激光的引导和随后的去除通过接合特征将可附接的光学部件结合到基底光学部件
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公开(公告)号：US20160189741A1
公开(公告)日：2016-06-30
申请号：US15061166
申请日：2016-03-04
Applicant: Seagate Technology LLC
Inventor： Karim Tatah , Mourad Benakli , James Gary Wessel
IPC: G11B7/1263 , G11B5/09
CPC classification number: G11B7/1263 , G11B5/02 , G11B5/09 , G11B5/40 , G11B5/455 , G11B2005/0021 , H01S5/02453 , H01S5/0261 , H01S5/0612 , H01S5/0617 , H01S5/06216 , H01S5/0651 , H01S5/06804 , H01S5/06808
Abstract: A method and apparatus provide for determining a temperature at a junction of a laser diode when the laser diode is operated in a lasing state that facilitates heat-assisted magnetic recording, comparing the junction temperature and an injection current supplied during the lasing state to stored combinations of junction temperature and injection current, and determining a likelihood of mode hopping occurring for the laser diode during the lasing state based on the comparison to stored combinations of junction temperature and injection current.
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24.发明申请HEAT ASSISTED MEDIA RECORDING DEVICE WITH REDUCED LIKELIHOOD OF LASER MODE HOPPING 有权加热辅助介质记录装置，具有减少激光模式偏差公开(公告)号：US20160087401A1
公开(公告)日：2016-03-24
申请号：US14492785
申请日：2014-09-22
Applicant: Seagate Technology LLC
Inventor： James Gary Wessel , Karim Tatah , Mourad Benakli
CPC classification number: H01S5/06804 , G11B5/02 , G11B5/40 , G11B19/046 , G11B2005/0021 , H01S5/02453 , H01S5/0261 , H01S5/06216 , H01S5/0687
Abstract: An apparatus includes a laser diode, a heater arrangement, and a circuit. The laser diode is configured to facilitate heat assisted magnetic recording during a lasing state. The heater arrangement is positioned proximate the laser diode. The circuit electrically couples the laser diode and the heater arrangement in a parallel relationship. The circuit is configured to alternately operate the laser diode in a lasing state and a non-lasing state, and to activate the heater arrangement during the non-lasing state to warm a junction of the laser diode.
Abstract translation: 一种装置包括激光二极管，加热器装置和电路。 激光二极管被配置为在激光状态期间促进热辅助磁记录。 加热器装置位于激光二极管附近。 电路以平行关系电耦合激光二极管和加热器装置。 电路被配置为交替地操作激光二极管处于激光状态和非激光状态，并且在非激光状态期间激活加热器装置以加热激光二极管的结。
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公开(公告)号：US20130322822A1
公开(公告)日：2013-12-05
申请号：US13907011
申请日：2013-05-31
Applicant: Seagate Technology LLC
Inventor： Brent C. Roeger , Karim Tatah
CPC classification number: G11B5/1272 , B23K1/0056 , B23K26/0643 , B23K26/0648 , B23K26/0652 , B23K26/073 , G11B5/105 , G11B5/4806 , G11B2005/0021
Abstract: An attachable optical component is aligned with a base optical component. The attachable optical component has a mounting surface interfacing with the base optical component and an exposed surface opposed to the mounting surface. Laser light is directed to the exposed surface of the attachable optical component for delivery to the mounting surface. The attachable optical component guides and homogenizes the laser light delivered to the mounting surface and uniformly heats a bonding feature between the mounting surface and the base optical component. The directing and subsequent removing of the laser light bonds the attachable optical component to the base optical component via the bonding feature
Abstract translation: 可附接的光学部件与基底光学部件对准。 可附接光学部件具有与基部光学部件相对的安装面和与安装面相对的露出面。 激光被引导到可附接的光学部件的暴露表面，以便传送到安装表面。 可安装的光学部件引导和均化传送到安装表面的激光，并均匀地加热安装表面和基底光学部件之间的接合特征。 激光的引导和随后的去除通过接合特征将可附接的光学部件结合到基底光学部件
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Patent Agency Ranking
公开(公告)号：US20230041735A1
公开(公告)日：2023-02-09
申请号：US17898936
申请日：2022-08-30
Applicant: Seagate Technology LLC
Inventor： Karim Tatah , Mourad Benakli , James Gary Wessel
IPC: G11B7/1263 , H01S5/068 , H01S5/06 , H01S5/026 , H01S5/065 , G11B5/02 , G11B5/40 , G11B5/455 , G11B5/09
Abstract: A method and apparatus provide for determining a temperature at a junction of a laser diode when the laser diode is operated in a lasing state that facilitates heat-assisted magnetic recording, comparing the junction temperature and an injection current supplied during the lasing state to stored combinations of junction temperature and injection current, and determining a likelihood of mode hopping occurring for the laser diode during the lasing state based on the comparison to stored combinations of junction temperature and injection current.
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公开(公告)号：US10902876B2
公开(公告)日：2021-01-26
申请号：US16714962
申请日：2019-12-16
Applicant: Seagate Technology LLC
Inventor： Karim Tatah , Mourad Benakli , James Gary Wessel
IPC: H01S5/068 , G11B7/1263 , H01S5/06 , H01S5/026 , H01S5/065 , G11B5/02 , G11B5/40 , G11B5/455 , G11B5/09 , H01S5/024 , H01S5/062 , G11B5/00
Abstract: A method and apparatus provide for determining a temperature at a junction of a laser diode when the laser diode is operated in a lasing state that facilitates heat-assisted magnetic recording, comparing the junction temperature and an injection current supplied during the lasing state to stored combinations of junction temperature and injection current, and determining a likelihood of mode hopping occurring for the laser diode during the lasing state based on the comparison to stored combinations of junction temperature and injection current.
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公开(公告)号：US20190259418A1
公开(公告)日：2019-08-22
申请号：US16399095
申请日：2019-04-30
Applicant: Seagate Technology LLC
Inventor： Karim Tatah , Mourad Benakli , James Gary Wessel
IPC: G11B7/1263 , H01S5/068 , H01S5/065 , H01S5/026 , H01S5/06 , G11B5/455 , G11B5/40 , G11B5/09 , G11B5/02
Abstract: A method and apparatus provide for determining a temperature at a junction of a laser diode when the laser diode is operated in a lasing state that facilitates heat-assisted magnetic recording, comparing the junction temperature and an injection current supplied during the lasing state to stored combinations of junction temperature and injection current, and determining a likelihood of mode hopping occurring for the laser diode during the lasing state based on the comparison to stored combinations of junction temperature and injection current.
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公开(公告)号：US09318134B2
公开(公告)日：2016-04-19
申请号：US13907011
申请日：2013-05-31
Applicant: Seagate Technology LLC
Inventor： Brent C. Roeger , Karim Tatah
CPC classification number: G11B5/1272 , B23K1/0056 , B23K26/0643 , B23K26/0648 , B23K26/0652 , B23K26/073 , G11B5/105 , G11B5/4806 , G11B2005/0021
Abstract: An attachable optical component is aligned with a base optical component. The attachable optical component has a mounting surface interfacing with the base optical component and an exposed surface opposed to the mounting surface. Laser light is directed to the exposed surface of the attachable optical component for delivery to the mounting surface. The attachable optical component guides and homogenizes the laser light delivered to the mounting surface and uniformly heats a bonding feature between the mounting surface and the base optical component. The directing and subsequent removing of the laser light bonds the attachable optical component to the base optical component via the bonding feature.
Abstract translation: 可附接的光学部件与基底光学部件对准。 可附接光学部件具有与基部光学部件相对的安装面和与安装面相对的露出面。 激光被引导到可附接的光学部件的暴露表面，以便传送到安装表面。 可安装的光学部件引导和均化传送到安装表面的激光，并均匀地加热安装表面和基底光学部件之间的接合特征。 激光的引导和随后的去除通过接合特征将可附接的光学部件结合到基底光学部件。
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30.发明申请THERMAL MANAGEMENT OF LASER DIODE MODE HOPPING FOR HEAT ASSISTED MEDIA RECORDING 有权激光二极管模式热管理热辅助介质记录的热管理公开(公告)号：US20160087402A1
公开(公告)日：2016-03-24
申请号：US14492802
申请日：2014-09-22
Applicant: Seagate Technology LLC
Inventor： Karim Tatah , Mourad Benakli , James Gary Wessel
CPC classification number: G11B7/1263 , G11B5/02 , G11B5/09 , G11B5/40 , G11B5/455 , G11B2005/0021 , H01S5/02453 , H01S5/0261 , H01S5/0612 , H01S5/0617 , H01S5/06216 , H01S5/0651 , H01S5/06804 , H01S5/06808
Abstract: A method and apparatus provide for determining a temperature at a junction of a laser diode when the laser diode is operated in a lasing state that facilitates heat-assisted magnetic recording, comparing the junction temperature and an injection current supplied during the lasing state to stored combinations of junction temperature and injection current, and determining a likelihood of mode hopping occurring for the laser diode during the lasing state based on the comparison to stored combinations of junction temperature and injection current.
Abstract translation: 一种方法和装置，用于在激光二极管以促进热辅助磁记录的激光状态下操作时确定激光二极管的结点处的温度，将结温和在激光期间提供的注入电流与存储的组合进行比较 的结温和注入电流，并且基于与存储的结温和注入电流的组合的比较，确定在激光状态期间激光二极管发生模式跳变的可能性。
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