DE69806198D1 - Laservorrichtungen zur Plattentexturierung - Google Patents

Laservorrichtungen zur Plattentexturierung

Info

Publication number
DE69806198D1
DE69806198D1 DE69806198T DE69806198T DE69806198D1 DE 69806198 D1 DE69806198 D1 DE 69806198D1 DE 69806198 T DE69806198 T DE 69806198T DE 69806198 T DE69806198 T DE 69806198T DE 69806198 D1 DE69806198 D1 DE 69806198D1
Authority
DE
Germany
Prior art keywords
laser devices
texturing
plate texturing
plate
laser
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69806198T
Other languages
English (en)
Other versions
DE69806198T2 (de
Inventor
Peter Michael Baumgart
James Hammond Brannon
Chie Ching Poon
Iraj Kakesh Pour
Andrew Ching Tam
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of DE69806198D1 publication Critical patent/DE69806198D1/de
Publication of DE69806198T2 publication Critical patent/DE69806198T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/128—Modulators
    • 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
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/11—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on acousto-optical elements, e.g. using variable diffraction by sound or like mechanical waves
    • G02F1/113—Circuit or control arrangements
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/29—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the position or the direction of light beams, i.e. deflection
    • G02F1/33—Acousto-optical deflection devices
    • G02F1/332—Acousto-optical deflection devices comprising a plurality of transducers on the same crystal surface, e.g. multi-channel Bragg cell
    • 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
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/127—Lasers; Multiple laser arrays
    • G11B7/1275—Two or more lasers having different wavelengths
    • 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
    • G11B7/1353—Diffractive elements, e.g. holograms or gratings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/062—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
    • H01S5/0625—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes in multi-section lasers
    • H01S5/06253—Pulse modulation

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Electromagnetism (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
  • Optical Head (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
DE69806198T 1997-03-28 1998-03-09 Laservorrichtungen zur Plattentexturierung Expired - Fee Related DE69806198T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/825,307 US5981903A (en) 1997-03-28 1997-03-28 Laser system for simultaneous texturing of two sides of a substrate

Publications (2)

Publication Number Publication Date
DE69806198D1 true DE69806198D1 (de) 2002-08-01
DE69806198T2 DE69806198T2 (de) 2003-01-30

Family

ID=25243663

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69806198T Expired - Fee Related DE69806198T2 (de) 1997-03-28 1998-03-09 Laservorrichtungen zur Plattentexturierung

Country Status (6)

Country Link
US (1) US5981903A (de)
EP (1) EP0867866B1 (de)
JP (1) JP3334749B2 (de)
KR (1) KR100300793B1 (de)
DE (1) DE69806198T2 (de)
SG (1) SG68651A1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5910262A (en) * 1997-02-06 1999-06-08 International Business Machines Corporation Method and tool for laser texturing of glass substrates
US6164118A (en) * 1998-09-30 2000-12-26 Komag Incorporated Calibration disk having discrete bands of calibration bumps
US6774340B1 (en) * 1998-11-25 2004-08-10 Komatsu Limited Shape of microdot mark formed by laser beam and microdot marking method
US6754000B2 (en) * 2000-10-04 2004-06-22 Leica Microsystems Heidelberg Gmbh Optical arrangement, and method for the deflection of light beams
US6821472B2 (en) * 2002-04-10 2004-11-23 Siemens Dematic Electronics Assembly Systems, Inc. Method of laser machining materials with minimal thermal loading
US6947454B2 (en) * 2003-06-30 2005-09-20 Electro Scientific Industries, Inc. Laser pulse picking employing controlled AOM loading
US7133186B2 (en) * 2004-06-07 2006-11-07 Electro Scientific Industries, Inc. AOM modulation techniques employing transducers to modulate different axes
JP4917382B2 (ja) * 2006-08-09 2012-04-18 株式会社ディスコ レーザー光線照射装置およびレーザー加工機
US9029731B2 (en) 2007-01-26 2015-05-12 Electro Scientific Industries, Inc. Methods and systems for laser processing continuously moving sheet material
US7817685B2 (en) * 2007-01-26 2010-10-19 Electro Scientific Industries, Inc. Methods and systems for generating pulse trains for material processing
JP5740265B2 (ja) 2011-09-21 2015-06-24 株式会社東芝 音響光学素子
JP5851573B2 (ja) * 2014-09-01 2016-02-03 株式会社東芝 音響光学素子
US11042052B2 (en) * 2018-09-18 2021-06-22 Eagle Technology, Llc Multi-channel laser system including an acousto-optic modulator (AOM) with beam polarization switching and related methods

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3609009A (en) * 1969-02-13 1971-09-28 Rca Corp Binary light beam deflector using acoustic waves
US3989778A (en) * 1975-12-17 1976-11-02 W. R. Grace & Co. Method of heat sealing thermoplastic sheets together using a split laser beam
US4224096A (en) * 1976-03-25 1980-09-23 W. R. Grace & Co. Laser sealing of thermoplastic material
HU180848B (en) * 1979-04-18 1983-04-29 Mta Szamitastech Autom Kutato Multiple acoustooptical,multiray intensity modulator and ray deflector
DE3116426A1 (de) * 1980-04-26 1982-02-25 Canon K.K., Tokyo "strahlablenkeinrichtung"
US4321564A (en) * 1980-06-18 1982-03-23 Litton Systems, Inc. Sequential beam switching of acousto-optic modulator
JPS58132731A (ja) * 1982-02-03 1983-08-08 Hoya Corp ２進光束偏向器
JPS60107617A (ja) * 1983-11-17 1985-06-13 Matsushita Electric Ind Co Ltd 光変調器
JPH01216316A (ja) * 1988-02-25 1989-08-30 Asahi Glass Co Ltd 音響光学ｑスイッチ素子
US4912487A (en) * 1988-03-25 1990-03-27 Texas Instruments Incorporated Laser scanner using focusing acousto-optic device
US5138482A (en) * 1989-09-25 1992-08-11 Fuji Photo Film Co., Ltd. Light modular and recording device employing same
US5062021A (en) * 1990-03-12 1991-10-29 Magnetic Peripherals Inc. Selectively textured magnetic recording media
US5108781A (en) * 1990-03-12 1992-04-28 Magnetic Peripherals Inc. Process for manufacturing selectively textured magnetic recording media
JPH041719A (ja) * 1990-04-19 1992-01-07 Fuji Photo Film Co Ltd 同時多ビーム光変調装置
US5077748A (en) * 1991-04-01 1991-12-31 International Business Machines Corporation Laser system and method
US5526109A (en) * 1991-06-27 1996-06-11 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Multi-velocity component LDV
US5283773A (en) * 1992-06-10 1994-02-01 Iomega Corporation Steering laser beam while etching optical servo tracks for magnetic disks
US5482497A (en) * 1992-12-30 1996-01-09 International Business Machines Corporation Method and apparatus for texturing zones of a magnetic disk
TW300879B (de) * 1993-11-10 1997-03-21 Ibm
US5768076A (en) * 1993-11-10 1998-06-16 International Business Machines Corporation Magnetic recording disk having a laser-textured surface
US5508119A (en) * 1994-09-07 1996-04-16 Aluminum Company Of America Enhanced work roll surface texture for cold and hot rolling of aluminum and its alloys
JPH08194197A (ja) * 1995-01-20 1996-07-30 Hoya Corp 導波路型音響光学素子
US5658475A (en) * 1996-03-11 1997-08-19 International Business Machines Corporation Apparatus for laser texturing disks
US5783797A (en) * 1996-05-09 1998-07-21 Seagate Technology, Inc. Laser texturing of magnetic recording medium using a crystal material
US5790433A (en) * 1996-09-05 1998-08-04 International Business Machines Corporation Method for controlling laser power in a texturing process
US5822211A (en) * 1996-11-13 1998-10-13 International Business Machines Corporation Laser texturing apparatus with dual laser paths having an independently adjusted parameter

Also Published As

Publication number Publication date
US5981903A (en) 1999-11-09
SG68651A1 (en) 1999-11-16
EP0867866B1 (de) 2002-06-26
DE69806198T2 (de) 2003-01-30
JP3334749B2 (ja) 2002-10-15
KR19980079583A (ko) 1998-11-25
JPH10275341A (ja) 1998-10-13
EP0867866A1 (de) 1998-09-30
KR100300793B1 (ko) 2001-10-27

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee