WO2008142917A1 - Optical recording head, light-assisted magnetic recording head, and optical recording device - Google Patents

Optical recording head, light-assisted magnetic recording head, and optical recording device Download PDF

Info

Publication number
WO2008142917A1
WO2008142917A1 PCT/JP2008/056575 JP2008056575W WO2008142917A1 WO 2008142917 A1 WO2008142917 A1 WO 2008142917A1 JP 2008056575 W JP2008056575 W JP 2008056575W WO 2008142917 A1 WO2008142917 A1 WO 2008142917A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
recording head
optical recording
optical
assisted magnetic
Prior art date
Application number
PCT/JP2008/056575
Other languages
French (fr)
Japanese (ja)
Inventor
Koujirou Sekine
Naoki Nishida
Hiroshi Hatano
Original Assignee
Konica Minolta Opto, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Konica Minolta Opto, Inc. filed Critical Konica Minolta Opto, Inc.
Priority to JP2009515113A priority Critical patent/JPWO2008142917A1/en
Publication of WO2008142917A1 publication Critical patent/WO2008142917A1/en

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1387—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector using the near-field effect
    • 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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
    • G11B7/124—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate the integrated head arrangements including waveguides
    • 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

Abstract

Provided is an optical recording head having a simple structure of a small thickness and a high efficiency for using light. The optical recording head includes: a slider which relatively moves on a recording medium with respect to the recording medium and has an optical waveguide; and an optical fiber for introducing light from a light source. The optical fiber is connected to the slider and has an end face at the side for emitting light of the optical fiber, on which surface is formed a slope serving as a reflection surface for polarizing the light introduced from the light source, so that the light polarized by the slope is introduced into a light waveguide.
PCT/JP2008/056575 2007-05-10 2008-04-02 Optical recording head, light-assisted magnetic recording head, and optical recording device WO2008142917A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009515113A JPWO2008142917A1 (en) 2007-05-10 2008-04-02 Optical recording head, optically assisted magnetic recording head, and optical recording apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-125386 2007-05-10
JP2007125386 2007-05-10

Publications (1)

Publication Number Publication Date
WO2008142917A1 true WO2008142917A1 (en) 2008-11-27

Family

ID=40031633

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/056575 WO2008142917A1 (en) 2007-05-10 2008-04-02 Optical recording head, light-assisted magnetic recording head, and optical recording device

Country Status (2)

Country Link
JP (1) JPWO2008142917A1 (en)
WO (1) WO2008142917A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010095333A1 (en) * 2009-02-17 2010-08-26 コニカミノルタオプト株式会社 Near-field light emitting device, optical recording head and optical recorder
WO2010146888A1 (en) * 2009-06-19 2010-12-23 コニカミノルタオプト株式会社 Light spot forming element, optical recording head and optical recording device
JP2012084214A (en) * 2010-09-14 2012-04-26 Seiko Instruments Inc Near-field light generating element, method for manufacturing near-field light generating element, near-field optical head, method for manufacturing near-field optical head, and information record reproducer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04136803A (en) * 1990-07-30 1992-05-11 Fujikura Ltd Optical coupling method for optical fiber
JPH11174236A (en) * 1997-12-09 1999-07-02 Matsushita Electric Ind Co Ltd Method and device or obliquely grinding and working end of optical fiber, optical fiber and optical connecting method
JP2003006803A (en) * 2001-06-22 2003-01-10 Fuji Xerox Co Ltd Optical magnetic head and magneto-optical disk device
JP2006154335A (en) * 2004-11-30 2006-06-15 Sumitomo Electric Ind Ltd Optical data link component and its manufacturing method
WO2008001594A1 (en) * 2006-06-30 2008-01-03 Konica Minolta Opto, Inc. Optical head, magneto-optical head and optical recording apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04136803A (en) * 1990-07-30 1992-05-11 Fujikura Ltd Optical coupling method for optical fiber
JPH11174236A (en) * 1997-12-09 1999-07-02 Matsushita Electric Ind Co Ltd Method and device or obliquely grinding and working end of optical fiber, optical fiber and optical connecting method
JP2003006803A (en) * 2001-06-22 2003-01-10 Fuji Xerox Co Ltd Optical magnetic head and magneto-optical disk device
JP2006154335A (en) * 2004-11-30 2006-06-15 Sumitomo Electric Ind Ltd Optical data link component and its manufacturing method
WO2008001594A1 (en) * 2006-06-30 2008-01-03 Konica Minolta Opto, Inc. Optical head, magneto-optical head and optical recording apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010095333A1 (en) * 2009-02-17 2010-08-26 コニカミノルタオプト株式会社 Near-field light emitting device, optical recording head and optical recorder
JPWO2010095333A1 (en) * 2009-02-17 2012-08-23 コニカミノルタアドバンストレイヤー株式会社 Near-field light generator, optical recording head, and optical recording apparatus
WO2010146888A1 (en) * 2009-06-19 2010-12-23 コニカミノルタオプト株式会社 Light spot forming element, optical recording head and optical recording device
JPWO2010146888A1 (en) * 2009-06-19 2012-12-06 コニカミノルタアドバンストレイヤー株式会社 Optical spot forming element, optical recording head, and optical recording apparatus
JP2012084214A (en) * 2010-09-14 2012-04-26 Seiko Instruments Inc Near-field light generating element, method for manufacturing near-field light generating element, near-field optical head, method for manufacturing near-field optical head, and information record reproducer

Also Published As

Publication number Publication date
JPWO2008142917A1 (en) 2010-08-05

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