中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Sensorless monitoring of laser power instability in a heat-assisted magnetic recording head

文献类型:专利

作者MACKEN, DECLAN; PERRY, TYLER LENN; TATAH, KARIM; DOROBANTU, ANDREI; LAMMERS, TODD MICHAEL
发表日期2019-09-10
专利号US10410668
著作权人SEAGATE TECHNOLOGY LLC
国家美国
文献子类授权发明
其他题名Sensorless monitoring of laser power instability in a heat-assisted magnetic recording head
英文摘要A slider configured for heat-assisted magnetic recording includes a laser diode optically coupled to a waveguide of the slider. A power supply is coupled to the laser diode. A preamplifier is coupled to the power supply. The preamplifier is configured to monitor a forward voltage across the laser diode while operating the laser diode at a constant current during a write operation, detect a change in the forward voltage indicative of laser power instability, and generate a signal in response to detecting the forward voltage change.
公开日期2019-09-10
申请日期2019-01-16
状态授权
源URL[http://ir.opt.ac.cn/handle/181661/33192]  
专题半导体激光器专利数据库
作者单位SEAGATE TECHNOLOGY LLC
推荐引用方式
GB/T 7714
MACKEN, DECLAN,PERRY, TYLER LENN,TATAH, KARIM,et al. Sensorless monitoring of laser power instability in a heat-assisted magnetic recording head. US10410668. 2019-09-10.

入库方式: OAI收割

来源:西安光学精密机械研究所

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