WO2012150149A3 - Laserbearbeitungssystem mit einem in seiner brillanz einstellbaren bearbeitungslaserstrahl - Google Patents

Laserbearbeitungssystem mit einem in seiner brillanz einstellbaren bearbeitungslaserstrahl Download PDF

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Publication number
WO2012150149A3
WO2012150149A3 PCT/EP2012/057453 EP2012057453W WO2012150149A3 WO 2012150149 A3 WO2012150149 A3 WO 2012150149A3 EP 2012057453 W EP2012057453 W EP 2012057453W WO 2012150149 A3 WO2012150149 A3 WO 2012150149A3
Authority
WO
WIPO (PCT)
Prior art keywords
laser beam
laser
fibre core
brilliance
processing
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.)
Ceased
Application number
PCT/EP2012/057453
Other languages
English (en)
French (fr)
Other versions
WO2012150149A2 (de
Inventor
Thomas Rataj
Andreas Voss
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.)
Institut fur Strahlwerkzeuge
Trumpf Laser GmbH
Original Assignee
Institut fur Strahlwerkzeuge
Trumpf Laser GmbH
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 Institut fur Strahlwerkzeuge, Trumpf Laser GmbH filed Critical Institut fur Strahlwerkzeuge
Priority to US14/115,416 priority Critical patent/US8958144B2/en
Priority to CN201280021696.5A priority patent/CN103597674B/zh
Publication of WO2012150149A2 publication Critical patent/WO2012150149A2/de
Publication of WO2012150149A3 publication Critical patent/WO2012150149A3/de
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/10007—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers
    • H01S3/10015—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers by monitoring or controlling, e.g. attenuating, the input signal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/064—Shaping the laser beam, e.g. by masks or multi-focusing by means of optical elements, e.g. lenses, mirrors or prisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
    • B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
    • B23K26/067—Dividing the beam into multiple beams, e.g. multi-focusing
    • B23K26/0673—Dividing the beam into multiple beams, e.g. multi-focusing into independently operating sub-beams, e.g. beam multiplexing to provide laser beams for several stations
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating
    • G02B6/036—Optical fibres with cladding with or without a coating core or cladding comprising multiple layers
    • G02B6/03616—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference
    • G02B6/03638—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 3 layers only
    • G02B6/03644—Optical fibres characterised both by the number of different refractive index layers around the central core segment, i.e. around the innermost high index core layer, and their relative refractive index difference having 3 layers only arranged - + -
    • 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
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/10084—Frequency control by seeding
    • H01S3/10092—Coherent seed, e.g. injection locking
    • 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
    • H01S3/30—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects
    • H01S3/302—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects in an optical fibre
    • 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
    • H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
    • 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
    • H01S3/06—Construction or shape of active medium
    • H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
    • H01S3/067—Fibre lasers
    • H01S3/06708—Constructional details of the fibre, e.g. compositions, cross-section, shape or tapering
    • H01S3/06729—Peculiar transverse fibre profile
    • 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
    • H01S3/06—Construction or shape of active medium
    • H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
    • H01S3/067—Fibre lasers
    • H01S3/06754—Fibre amplifiers
    • 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
    • H01S3/23—Arrangements of two or more lasers not provided for in groups H01S3/02 - H01S3/22, e.g. tandem arrangements of separate active media
    • H01S3/2383—Parallel arrangements

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Lasers (AREA)

Abstract

Das erfindungsgemäße Laserbearbeitungssystem (60) umfasst einen Hochleistungslaser (61) zur Erzeugung eines Hochleistungspumplaserstrahls (HP-MM), einen Steuersignallaser (62) zur Erzeugung eines Steuersignallaser-Strahls (SS) und mindestens eine von den beiden Lasern (61, 62) zu einem Laserbearbeitungskopf (63) führende Lichtleitfaser (64), die eine SRS-Verstärkerfaser (65) mit einem inneren Faserkern (65a) höherer Brillanz und mit einem den inneren Faserkern (65a) umgebenden äußeren Faserkern (65b) geringerer Brillanz aufweist, wobei der Steuersignallaserstrahl (SS) in den inneren Faserkern (65a) und der Pumplaserstrahl (HP-MM) in den äußeren Faserkern (65b) eingekoppelt werden und wobei zum Einstellen der Brillanz des aus der SRS-Verstärkerfaser (65) austretenden Bearbeitungslaserstrahls (68) der vom äußeren Faserkern (65b) aufgrund der SRS-Verstärkung in den inneren Faserkern (65a) konvertierte Strahlungsanteil über die eingekoppelte Leistung des Steuersignallaserstrahls (SS) eingestellt wird.
PCT/EP2012/057453 2011-05-04 2012-04-24 Laserbearbeitungssystem mit einem in seiner brillanz einstellbaren bearbeitungslaserstrahl Ceased WO2012150149A2 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US14/115,416 US8958144B2 (en) 2011-05-04 2012-04-24 Laser machining system having a machining laser beam that is adjustable in terms of its brilliance
CN201280021696.5A CN103597674B (zh) 2011-05-04 2012-04-24 具有在亮度方面可调整的加工激光射束的激光加工系统

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011075213.7 2011-05-04
DE102011075213A DE102011075213B4 (de) 2011-05-04 2011-05-04 Laserbearbeitungssystem mit einem in seiner Brillanz einstellbaren Bearbeitungslaserstrahl

Publications (2)

Publication Number Publication Date
WO2012150149A2 WO2012150149A2 (de) 2012-11-08
WO2012150149A3 true WO2012150149A3 (de) 2013-03-28

Family

ID=46027928

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/057453 Ceased WO2012150149A2 (de) 2011-05-04 2012-04-24 Laserbearbeitungssystem mit einem in seiner brillanz einstellbaren bearbeitungslaserstrahl

Country Status (4)

Country Link
US (1) US8958144B2 (de)
CN (1) CN103597674B (de)
DE (1) DE102011075213B4 (de)
WO (1) WO2012150149A2 (de)

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US10069271B2 (en) 2014-06-02 2018-09-04 Nlight, Inc. Scalable high power fiber laser
US10618131B2 (en) 2014-06-05 2020-04-14 Nlight, Inc. Laser patterning skew correction
CN105720463B (zh) 2014-08-01 2021-05-14 恩耐公司 光纤和光纤传输的激光器中的背向反射保护与监控
EP3186821B1 (de) * 2014-08-27 2021-01-13 Nuburu, Inc. Anwendungen, verfahren und systeme zur materialbearbeitung mit sichtbarem ramanlaser
MX373360B (es) * 2014-09-26 2020-07-06 Comau Spa Fuente de láser, especialmente para procesos industriales.
US9837783B2 (en) 2015-01-26 2017-12-05 Nlight, Inc. High-power, single-mode fiber sources
US10050404B2 (en) 2015-03-26 2018-08-14 Nlight, Inc. Fiber source with cascaded gain stages and/or multimode delivery fiber with low splice loss
CN107924023B (zh) 2015-07-08 2020-12-01 恩耐公司 具有用于增加的光束参数乘积的中心折射率受抑制的纤维
CN108369315B (zh) 2015-09-24 2020-08-04 恩耐公司 用于控制光束参数积的装置和方法
CN108367389B (zh) 2015-11-23 2020-07-28 恩耐公司 激光加工方法和装置
US11179807B2 (en) 2015-11-23 2021-11-23 Nlight, Inc. Fine-scale temporal control for laser material processing
ITUA20161635A1 (it) * 2016-03-14 2017-09-14 Comau Spa "Sorgente laser, particolarmente per lavorazioni industriali"
US10732439B2 (en) 2016-09-29 2020-08-04 Nlight, Inc. Fiber-coupled device for varying beam characteristics
US10730785B2 (en) 2016-09-29 2020-08-04 Nlight, Inc. Optical fiber bending mechanisms
US10673197B2 (en) 2016-09-29 2020-06-02 Nlight, Inc. Fiber-based optical modulator
US10673199B2 (en) 2016-09-29 2020-06-02 Nlight, Inc. Fiber-based saturable absorber
US10423015B2 (en) 2016-09-29 2019-09-24 Nlight, Inc. Adjustable beam characteristics
US10673198B2 (en) 2016-09-29 2020-06-02 Nlight, Inc. Fiber-coupled laser with time varying beam characteristics
KR102611837B1 (ko) 2017-04-04 2023-12-07 엔라이트 인크. 검류계 스캐너 보정을 위한 광학 기준 생성
IT201700117959A1 (it) * 2017-10-18 2019-04-18 Opi Photonics S R L Combinatore di fasci laser comprendente almeno uno specchio mobile
GB201719629D0 (en) * 2017-11-24 2018-01-10 Spi Lasers Uk Ltd Apparatus for providing optical radiation
DE102018204814B4 (de) * 2018-03-29 2025-03-06 TRUMPF Werkzeugmaschinen SE + Co. KG Vorrichtung und Verfahren zum Erzeugen von Laserstrahlungen mit unterschiedlicher Leistung und Brillanz
DE102018126846A1 (de) * 2018-10-26 2020-04-30 Bystronic Laser Ag Bearbeitungsvorrichtung zur Laserbearbeitung eines Werkstücks und Verfahren zur Laserbearbeitung eines Werkstücks
US11982841B2 (en) * 2021-04-21 2024-05-14 Lumentum Operations Llc Laser beam delivery system
CN114054971B (zh) * 2022-01-10 2022-07-12 武汉华工激光工程有限责任公司 一种自动实时gv值检测及补偿的方法和系统
CN117335256B (zh) * 2023-12-01 2024-03-08 上海频准激光科技有限公司 一种光信号功率控制系统

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Also Published As

Publication number Publication date
CN103597674B (zh) 2016-06-08
CN103597674A (zh) 2014-02-19
WO2012150149A2 (de) 2012-11-08
DE102011075213A1 (de) 2012-11-08
US8958144B2 (en) 2015-02-17
DE102011075213B4 (de) 2013-02-21
US20140177038A1 (en) 2014-06-26

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