DE69218386T2 - Optische Einrichtung und mit einer solchen optischen Einrichtung versehenes Gerät zum Abtasten einer Informationsebene - Google Patents

Optische Einrichtung und mit einer solchen optischen Einrichtung versehenes Gerät zum Abtasten einer Informationsebene

Info

Publication number
DE69218386T2
DE69218386T2 DE69218386T DE69218386T DE69218386T2 DE 69218386 T2 DE69218386 T2 DE 69218386T2 DE 69218386 T DE69218386 T DE 69218386T DE 69218386 T DE69218386 T DE 69218386T DE 69218386 T2 DE69218386 T2 DE 69218386T2
Authority
DE
Germany
Prior art keywords
optical device
optical
scanning
diode laser
radiation beam
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
DE69218386T
Other languages
English (en)
Other versions
DE69218386D1 (de
Inventor
Coen Theodorus Hube Liedenbaum
Ronald Reindert Drenten
Michiel Johannes Jongerius
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.)
Koninklijke Philips NV
Original Assignee
Philips Electronics NV
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 Philips Electronics NV filed Critical Philips Electronics NV
Application granted granted Critical
Publication of DE69218386D1 publication Critical patent/DE69218386D1/de
Publication of DE69218386T2 publication Critical patent/DE69218386T2/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
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
    • 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
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/003—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with webs, filaments or wires, e.g. belts, spooled tapes or films of quasi-infinite extent
    • 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
    • H01S5/065—Mode locking; Mode suppression; Mode selection ; Self pulsating
    • 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
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
    • H01S3/08—Construction or shape of optical resonators or components thereof
    • H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
    • H01S3/082—Construction or shape of optical resonators or components thereof comprising three or more reflectors defining a plurality of resonators, e.g. for mode selection or suppression
    • H01S3/0823—Construction or shape of optical resonators or components thereof comprising three or more reflectors defining a plurality of resonators, e.g. for mode selection or suppression incorporating a dispersive element, e.g. a prism for wavelength selection
    • H01S3/0826—Construction or shape of optical resonators or components thereof comprising three or more reflectors defining a plurality of resonators, e.g. for mode selection or suppression incorporating a dispersive element, e.g. a prism for wavelength selection using a diffraction grating
    • 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
    • H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
    • H01S5/14—External cavity lasers
    • H01S5/141—External cavity lasers using a wavelength selective device, e.g. a grating or etalon
DE69218386T 1991-12-30 1992-12-17 Optische Einrichtung und mit einer solchen optischen Einrichtung versehenes Gerät zum Abtasten einer Informationsebene Expired - Fee Related DE69218386T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP91203427 1991-12-30
EP92203739 1992-12-03

Publications (2)

Publication Number Publication Date
DE69218386D1 DE69218386D1 (de) 1997-04-24
DE69218386T2 true DE69218386T2 (de) 1997-09-04

Family

ID=26129535

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69218386T Expired - Fee Related DE69218386T2 (de) 1991-12-30 1992-12-17 Optische Einrichtung und mit einer solchen optischen Einrichtung versehenes Gerät zum Abtasten einer Informationsebene

Country Status (6)

Country Link
US (1) US5333144A (de)
EP (1) EP0550929B1 (de)
JP (1) JPH05328049A (de)
CN (1) CN1044837C (de)
AT (1) ATE150573T1 (de)
DE (1) DE69218386T2 (de)

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EP0891620A1 (de) * 1996-12-24 1999-01-20 Koninklijke Philips Electronics N.V. Optisches system mit vergrösserter winkliger abtastreichweite
WO1998052086A1 (en) * 1997-05-16 1998-11-19 Koninklijke Philips Electronics N.V. Wavelength-selective opto-mechanical scanner and its applications
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US10426548B2 (en) 2006-02-01 2019-10-01 The General Hosppital Corporation Methods and systems for providing electromagnetic radiation to at least one portion of a sample using conformal laser therapy procedures
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US9176319B2 (en) 2007-03-23 2015-11-03 The General Hospital Corporation Methods, arrangements and apparatus for utilizing a wavelength-swept laser using angular scanning and dispersion procedures
US10534129B2 (en) 2007-03-30 2020-01-14 The General Hospital Corporation System and method providing intracoronary laser speckle imaging for the detection of vulnerable plaque
WO2009049296A2 (en) * 2007-10-12 2009-04-16 The General Hospital Corporation Systems and processes for optical imaging of luminal anatomic structures
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WO2009137701A2 (en) 2008-05-07 2009-11-12 The General Hospital Corporation System, method and computer-accessible medium for tracking vessel motion during three-dimensional coronary artery microscopy
US8861910B2 (en) 2008-06-20 2014-10-14 The General Hospital Corporation Fused fiber optic coupler arrangement and method for use thereof
EP2309923B1 (de) 2008-07-14 2020-11-25 The General Hospital Corporation Vorrichtung und verfahren für eine farbendoskopie
US8937724B2 (en) 2008-12-10 2015-01-20 The General Hospital Corporation Systems and methods for extending imaging depth range of optical coherence tomography through optical sub-sampling
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JP6053284B2 (ja) 2009-02-04 2016-12-27 ザ ジェネラル ホスピタル コーポレイション ハイスピード光学波長チューニング源の利用のための装置及び方法
CN102484353B (zh) * 2009-04-03 2015-10-07 艾克瑟劳斯股份公司 光源和光学相干计算机断层成像模块
JP5819823B2 (ja) 2009-07-14 2015-11-24 ザ ジェネラル ホスピタル コーポレイション 血管の内部の流れおよび圧力を測定する装置および装置の作動方法
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Also Published As

Publication number Publication date
CN1077046A (zh) 1993-10-06
ATE150573T1 (de) 1997-04-15
EP0550929B1 (de) 1997-03-19
US5333144A (en) 1994-07-26
CN1044837C (zh) 1999-08-25
EP0550929A1 (de) 1993-07-14
JPH05328049A (ja) 1993-12-10
DE69218386D1 (de) 1997-04-24

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Owner name: KONINKLIJKE PHILIPS ELECTRONICS N.V., EINDHOVEN, N

8339 Ceased/non-payment of the annual fee