Method for manufacturing a thermally-assisted magnetic head

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	Method for manufacturing a thermally-assisted magnetic head
其他题名	Method for manufacturing a thermally-assisted magnetic head
	HARA, SHINJI; SHIMAZAWA, KOJI; KOMURA, EIJI; CHOU, TSUTOMU; TAKAYAMA, SEIICHI
	2013
专利权人	TDK CORPORATION
公开日期	2013
授权国家	美国
专利类型	授权发明
摘要	A thermally-assisted magnetic head includes a slider including an air bearing surface (ABS) and a waveguide with a core that extends from a light entering surface to the ABS, and a laser diode (LD) unit attached to the light entering surface. The LD unit faces the light entering surface, and a photo detector faces the ABS. A polarizer that only transmits light having a polarization component orthogonal to a polarization direction of linearly polarized laser light is disposed between the ABS and the photo detector. An LD of the LD unit is activated, and the linearly polarized laser light enters the core from the light entering surface. Light radiated from the ABS enters the polarizer, and an alignment of the slider and the LD unit is performed while the photo detector detects the light transmitted through the polarizer.
其他摘要	热辅助磁头包括：滑块，包括空气轴承表面（ABS）;以及波导，其具有从光进入表面延伸到ABS的芯;以及激光二极管（LD）单元，其附接到光进入表面。 LD单元面向光进入表面，光电探测器面向ABS。仅传输具有与线性偏振激光的偏振方向正交的偏振分量的光的偏振器设置在ABS和光电检测器之间。 LD单元的LD被激活，并且线性偏振的激光从光进入表面进入核心。从ABS辐射的光进入偏振器，并且在光电检测器检测到透过偏振器的光的同时执行滑块和LD单元的对准。
申请日期	2010-11-16
专利号	US8341825
专利状态	授权
申请号	US12/947091
公开（公告）号	US8341825
IPC 分类号	G11B5/127 \| H04R31/00
专利代理人	-
代理机构	POSZ LAW GROUP,PLC
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/32888
专题	半导体激光器专利数据库
作者单位	TDK CORPORATION
推荐引用方式 GB/T 7714	HARA, SHINJI,SHIMAZAWA, KOJI,KOMURA, EIJI,et al. Method for manufacturing a thermally-assisted magnetic head. US8341825[P]. 2013-01-01.

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