Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Design and Fabrication of Micro Laser Module for Heat Assisted Magnetic Recording

차세대 열 보조 자지기록용 마이크로 레이저 모듈 설계 및 제작

  • 이수찬 (연세대학교 정보저장기기연구센터) ;
  • 최용복 (연세대학교 정보저장기기연구센터) ;
  • 김영주 (연세대학교 정보저장기기연구센터) ;
  • 김동식 (재영솔루텍(주))
  • Published : 2009.05.07
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Abstract

Heat Assisted Magnetic Recording (HAMR) is one of the most promising candidates for high density magnetic storages over 1 Tb/$in^2$ areal density. Since the precise light delivery to the head is a key factor to realize HAMR application, it is required to establish the light delivery using micro laser module and micro actuator. For the careful control of micro actuator, a laser module was designed including laser diode, optical fiber, collimating lens, and fabricated V-groove substrate. In addition, the basic aligning method between the laser module and HAMR head was studied by the detection of current change in photo diode due to the amount of reflected light from the head.

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