Invention Grant
US09281659B1 Thermal management of laser diode mode hopping for heat assisted media recording
有权
热辅助介质记录激光二极管模式跳变的热管理
- Patent Title: Thermal management of laser diode mode hopping for heat assisted media recording
- Patent Title (中): 热辅助介质记录激光二极管模式跳变的热管理
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Application No.: US14492802Application Date: 2014-09-22
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Publication No.: US09281659B1Publication Date: 2016-03-08
- Inventor: Karim Tatah , Mourad Benakli , James Gary Wessel
- Applicant: Seagate Technology LLC
- Applicant Address: US CA Cupertino
- Assignee: SEAGATE TECHNOLOGY LLC
- Current Assignee: SEAGATE TECHNOLOGY LLC
- Current Assignee Address: US CA Cupertino
- Agency: Hollingsworth Davis, LLC
- Main IPC: H01S5/068
- IPC: H01S5/068 ; H01S5/06 ; H01S5/026 ; H01S5/065
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.
Public/Granted literature
- US20160087402A1 THERMAL MANAGEMENT OF LASER DIODE MODE HOPPING FOR HEAT ASSISTED MEDIA RECORDING Public/Granted day:2016-03-24
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