KR100842898B1 - 열 보조 자기 기록방식에서의 광 커플링 구조 - Google Patents
열 보조 자기 기록방식에서의 광 커플링 구조 Download PDFInfo
- Publication number
- KR100842898B1 KR100842898B1 KR1020070009125A KR20070009125A KR100842898B1 KR 100842898 B1 KR100842898 B1 KR 100842898B1 KR 1020070009125 A KR1020070009125 A KR 1020070009125A KR 20070009125 A KR20070009125 A KR 20070009125A KR 100842898 B1 KR100842898 B1 KR 100842898B1
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- South Korea
- Prior art keywords
- waveguide
- magnetic recording
- slider
- assisted magnetic
- fiber
- Prior art date
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3109—Details
- G11B5/313—Disposition of layers
- G11B5/3133—Disposition of layers including layers not usually being a part of the electromagnetic transducer structure and providing additional features, e.g. for improving heat radiation, reduction of power dissipation, adaptations for measurement or indication of gap depth or other properties of the structure
- G11B5/314—Disposition of layers including layers not usually being a part of the electromagnetic transducer structure and providing additional features, e.g. for improving heat radiation, reduction of power dissipation, adaptations for measurement or indication of gap depth or other properties of the structure where the layers are extra layers normally not provided in the transducing structure, e.g. optical layers
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
- G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
- G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/012—Recording on, or reproducing or erasing from, magnetic disks
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/10—Structure or manufacture of housings or shields for heads
- G11B5/102—Manufacture of housing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B2005/0002—Special dispositions or recording techniques
- G11B2005/0005—Arrangements, methods or circuits
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B2005/0002—Special dispositions or recording techniques
- G11B2005/0005—Arrangements, methods or circuits
- G11B2005/0021—Thermally assisted recording using an auxiliary energy source for heating the recording layer locally to assist the magnetization reversal
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Adjustment Of The Magnetic Head Position Track Following On Tapes (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
- Magnetic Heads (AREA)
Abstract
Description
Claims (11)
- 일단부에 소정 각도의 미러부가 컷팅(Cutting)을 통해서 형성된 도파관;상기 도파관과 접촉하는 일측 폭 방향을 따라 'U' 또는 'V'자 형상의 단면을 갖는 그루브(Groove)가 형성된 슬라이더; 그리고상기 슬라이더와 수평하게 설치된 루즈 튜브(Loose tube)를 매개로 상기 도파관에 버트 커넥트(Butt connect)되는 화이버;를 포함하여 구성되는 열 보조 자기 기록방식에서의 광 커플링 구조.
- 일단부에 소정 각도의 미러부가 컷팅(Cutting)을 통해서 형성된 도파관;상기 도파관과 접촉하는 일측 폭 방향을 따라 경유 홀(Via hole)이 형성된 슬라이더; 그리고상기 슬라이더와 수평하게 설치된 루즈 튜브(Loose tube)를 매개로 상기 도파관에 버트 커넥트(Butt connect)되는 화이버;를 포함하여 구성되고,상기 경유 홀에 굴절률 정합 유체(index matching fluid)가 부분 충전됨과 아울러 UV 경화처리되는 것을 특징으로 하는 열 보조 자기 기록방식에서의 광 커플링 구조.
- 삭제
- 삭제
- 제 1항 또는 제 2항에 있어서,상기 미러부 표면은 금(Au), 은(Ag), 또는 알루미늄(Al) 중 선택된 1종에 의해 HR 코팅된 것을 특징으로 하는 열 보조 자기 기록방식에서의 광 커플링 구조.
- 삭제
- 제 1항 또는 제 2항에 있어서,상기 버트 커넥트시, 상기 화이버와 도파관간의 스페이스(Space)에 에폭시(Epoxy)를 사용해서 UV 경화(Curing)시키는 것을 특징으로 하는 열 보조 자기 기록방식에서의 광 커플링 구조.
- 삭제
- 삭제
- 삭제
- 제 2항에 있어서,상기 굴절률 정합 유체(IMF) 충전 부위에 단일 모드 화이버(SMF)가 인서트됨과 동시에 열경화용 에폭시(TCE)가 본딩되는 것을 특징으로 하는 열 보조 자기 기록방식에서의 광 커플링 구조.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070009125A KR100842898B1 (ko) | 2007-01-29 | 2007-01-29 | 열 보조 자기 기록방식에서의 광 커플링 구조 |
US11/844,004 US20080181560A1 (en) | 2007-01-29 | 2007-08-23 | Structure for light coupling in heat-assisted magnetic recording |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020070009125A KR100842898B1 (ko) | 2007-01-29 | 2007-01-29 | 열 보조 자기 기록방식에서의 광 커플링 구조 |
Publications (1)
Publication Number | Publication Date |
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KR100842898B1 true KR100842898B1 (ko) | 2008-07-03 |
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KR1020070009125A KR100842898B1 (ko) | 2007-01-29 | 2007-01-29 | 열 보조 자기 기록방식에서의 광 커플링 구조 |
Country Status (2)
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US (1) | US20080181560A1 (ko) |
KR (1) | KR100842898B1 (ko) |
Families Citing this family (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8092704B2 (en) * | 2008-12-30 | 2012-01-10 | Hitachi Global Storage Technologies Netherlands B.V. | System, method and apparatus for fabricating a c-aperture or E-antenna plasmonic near field source for thermal assisted recording applications |
US8169881B2 (en) * | 2008-12-31 | 2012-05-01 | Hitachi Global Storage Technologies Netherlands B.V. | Thermally assisted recording head having recessed waveguide with near field transducer and methods of making same |
US8254212B2 (en) * | 2009-06-25 | 2012-08-28 | Seagate Technology Llc | Integrated heat assisted magnetic recording device |
US8125856B1 (en) | 2009-11-05 | 2012-02-28 | Western Digital (Fremont), Llc | Method and system for optically coupling a laser with a transducer in an energy assisted magnetic recording disk drive |
US8625941B1 (en) | 2010-05-20 | 2014-01-07 | Western Digital (Fremont), Llc | Broadband reflective waveguide metal gratings and their formation |
US8375565B2 (en) | 2010-05-28 | 2013-02-19 | Western Digital (Fremont), Llc | Method for providing an electronic lapping guide corresponding to a near-field transducer of an energy assisted magnetic recording transducer |
US8351307B1 (en) | 2010-06-04 | 2013-01-08 | Western Digital (Fremont), Llc | Trailing edge optimized near field transducer having non-rectangular pin cross section |
US8343364B1 (en) | 2010-06-08 | 2013-01-01 | Western Digital (Fremont), Llc | Double hard-mask mill back method of fabricating a near field transducer for energy assisted magnetic recording |
US8320219B1 (en) | 2010-06-15 | 2012-11-27 | Western Digital (Fremont), Llc | Trailing edge optimized near field transducer |
US8518279B1 (en) | 2010-11-15 | 2013-08-27 | Western Digital (Fremont), Llc | Method and system for providing a laser cavity for an energy assisted magnetic recording head |
US8456964B1 (en) | 2010-11-16 | 2013-06-04 | Western Digital (Fremont), Llc | Energy assisted magnetic recording head having a reflector for improving efficiency of the light beam |
US8325569B1 (en) | 2011-06-27 | 2012-12-04 | Western Digital (Fremont), Llc | EAMR head having improved optical coupling efficiency |
US8749790B1 (en) | 2011-12-08 | 2014-06-10 | Western Digital (Fremont), Llc | Structure and method to measure waveguide power absorption by surface plasmon element |
US8670294B1 (en) | 2012-02-17 | 2014-03-11 | Western Digital (Fremont), Llc | Systems and methods for increasing media absorption efficiency using interferometric waveguides |
US8675455B1 (en) | 2012-02-17 | 2014-03-18 | Western Digital (Fremont), Llc | Systems and methods for controlling light phase difference in interferometric waveguides at near field transducers |
US8836949B1 (en) | 2012-09-17 | 2014-09-16 | Western Digital (Fremont), Llc | Systems and methods for characterizing near field transducer performance at wafer level using asymmetric interference waveguides |
US9286920B1 (en) | 2013-01-31 | 2016-03-15 | Western Digital (Fremont), Llc | Method for compensating for phase variations in an interferometric tapered waveguide in a heat assisted magnetic recording head |
US9336814B1 (en) | 2013-03-12 | 2016-05-10 | Western Digital (Fremont), Llc | Inverse tapered waveguide for use in a heat assisted magnetic recording head |
US9064527B1 (en) | 2013-04-12 | 2015-06-23 | Western Digital (Fremont), Llc | High order tapered waveguide for use in a heat assisted magnetic recording head |
US9064528B1 (en) | 2013-05-17 | 2015-06-23 | Western Digital Technologies, Inc. | Interferometric waveguide usable in shingled heat assisted magnetic recording in the absence of a near-field transducer |
US8923102B1 (en) | 2013-07-16 | 2014-12-30 | Western Digital (Fremont), Llc | Optical grating coupling for interferometric waveguides in heat assisted magnetic recording heads |
US8947985B1 (en) | 2013-07-16 | 2015-02-03 | Western Digital (Fremont), Llc | Heat assisted magnetic recording transducers having a recessed pole |
US9441938B1 (en) | 2013-10-08 | 2016-09-13 | Western Digital (Fremont), Llc | Test structures for measuring near field transducer disc length |
US9142233B1 (en) | 2014-02-28 | 2015-09-22 | Western Digital (Fremont), Llc | Heat assisted magnetic recording writer having a recessed pole |
US9190085B1 (en) | 2014-03-12 | 2015-11-17 | Western Digital (Fremont), Llc | Waveguide with reflective grating for localized energy intensity |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5889641A (en) | 1997-05-05 | 1999-03-30 | Seagate Technology, Inc. | Magneto-resistive magneto-optical head |
US6873576B1 (en) | 2000-05-24 | 2005-03-29 | Koninklijke Philips Electronics N.V. | Method of thermally-assisted data recording and a recording apparatus |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5105408A (en) * | 1988-05-12 | 1992-04-14 | Digital Equipment Corporation | Optical head with flying lens |
US5199090A (en) * | 1992-03-06 | 1993-03-30 | Hewlett-Packard Company | Flying magnetooptical read/write head employing an optical integrated circuit waveguide |
US6044056A (en) * | 1996-07-30 | 2000-03-28 | Seagate Technology, Inc. | Flying optical head with dynamic mirror |
US6298027B1 (en) * | 1998-03-30 | 2001-10-02 | Seagate Technology Llc | Low-birefringence optical fiber for use in an optical data storage system |
US7483229B2 (en) * | 2004-12-08 | 2009-01-27 | Seagate Technology Llc | Optical coupling to data recording transducer |
JP4635607B2 (ja) * | 2004-12-28 | 2011-02-23 | Tdk株式会社 | 熱アシスト磁気記録ヘッド及び熱アシスト磁気記録装置 |
WO2008001594A1 (fr) * | 2006-06-30 | 2008-01-03 | Konica Minolta Opto, Inc. | Tête optique, tête magnéto-optique et appareil d'enregistrement optique |
WO2008023552A1 (fr) * | 2006-08-23 | 2008-02-28 | Konica Minolta Opto, Inc. | Élément optique et tête optique |
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2007
- 2007-01-29 KR KR1020070009125A patent/KR100842898B1/ko active IP Right Grant
- 2007-08-23 US US11/844,004 patent/US20080181560A1/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5889641A (en) | 1997-05-05 | 1999-03-30 | Seagate Technology, Inc. | Magneto-resistive magneto-optical head |
US6873576B1 (en) | 2000-05-24 | 2005-03-29 | Koninklijke Philips Electronics N.V. | Method of thermally-assisted data recording and a recording apparatus |
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US20080181560A1 (en) | 2008-07-31 |
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