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

Laserbearbeitungssystem mit einem in seiner brillanz einstellbaren bearbeitungslaserstrahl Download PDF

Info

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
Application number
PCT/EP2012/057453
Other languages
English (en)
French (fr)
Other versions
WO2012150149A2 (de
Inventor
Thomas Rataj
Andreas Voss
Original Assignee
Trumpf Laser Gmbh + Co. Kg
Institut Für Strahlwerkzeuge
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 Trumpf Laser Gmbh + Co. Kg, Institut Für Strahlwerkzeuge filed Critical Trumpf Laser Gmbh + Co. Kg
Priority to CN201280021696.5A priority Critical patent/CN103597674B/zh
Priority to US14/115,416 priority patent/US8958144B2/en
Publication of WO2012150149A2 publication Critical patent/WO2012150149A2/de
Publication of WO2012150149A3 publication Critical patent/WO2012150149A3/de

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. multifocusing
    • B23K26/0673—Dividing the beam into multiple beams, e.g. multifocusing 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 WO2012150149A2 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
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***
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

Applications Claiming Priority (2)

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

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 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)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US10310201B2 (en) 2014-08-01 2019-06-04 Nlight, Inc. Back-reflection protection and monitoring in fiber and fiber-delivered lasers
RU2710819C2 (ru) * 2014-08-27 2020-01-14 Нубуру, Инк. Применения, способы и системы для обработки материалов с помощью рамановского лазера видимого диапазона
RS55934B1 (sr) * 2014-09-26 2017-09-29 Comau Spa Laserski izvor, naročito za industrijske postupke
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
WO2017008022A1 (en) 2015-07-08 2017-01-12 Nlight, Inc. Fiber with depressed central index for increased beam parameter product
WO2017053985A1 (en) 2015-09-24 2017-03-30 Nlight, Inc. Beam parameter product (bpp) control by varying fiber-to-fiber angle
EP3978184A1 (de) 2015-11-23 2022-04-06 NLIGHT, Inc. Verfahren und vorrichtung zur feinstufigen zeitsteuerung für eine laserstrahlmaterialbearbeitung
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
WO2018063452A1 (en) * 2016-09-29 2018-04-05 Nlight, Inc. Adjustable beam characteristics
US10673198B2 (en) 2016-09-29 2020-06-02 Nlight, Inc. Fiber-coupled laser with time varying beam characteristics
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
US11173548B2 (en) 2017-04-04 2021-11-16 Nlight, Inc. Optical fiducial generation for galvanometric scanner calibration
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
DE102018204814A1 (de) * 2018-03-29 2019-10-02 Trumpf Werkzeugmaschinen Gmbh + 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
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***
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***

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5917969A (en) * 1998-02-17 1999-06-29 Polaroid Corporation Laser modulator
US20050078353A1 (en) * 2003-10-08 2005-04-14 Hiroshi Komine Brightness enhancement of diode light sources
GB2439345A (en) * 2006-06-23 2007-12-27 Gsi Group Ltd Annular tapered fibre coupler for cladding pumping of an optical fibre
US20080277565A1 (en) * 2007-05-07 2008-11-13 Dana Craig Bookbinder Optical fiber for optical power transmission

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6275250B1 (en) * 1998-05-26 2001-08-14 Sdl, Inc. Fiber gain medium marking system pumped or seeded by a modulated laser diode source and method of energy control
US6965469B2 (en) * 2002-11-20 2005-11-15 The Boeing Company Fiber amplifier having a non-doped inner core and at least one doped gain region
DE102004027625A1 (de) * 2004-06-05 2006-01-05 Trumpf Laser Gmbh + Co. Kg Hochleistungs-Faserlaserverstärker und -Faserlaseroszillator
US20070041409A1 (en) * 2005-08-19 2007-02-22 Sudarshanam Venkatapuram S Injection locked high power laser systems
WO2008123609A1 (ja) * 2007-04-04 2008-10-16 Mitsubishi Electric Corporation レーザ加工装置及びレーザ加工方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5917969A (en) * 1998-02-17 1999-06-29 Polaroid Corporation Laser modulator
US20050078353A1 (en) * 2003-10-08 2005-04-14 Hiroshi Komine Brightness enhancement of diode light sources
GB2439345A (en) * 2006-06-23 2007-12-27 Gsi Group Ltd Annular tapered fibre coupler for cladding pumping of an optical fibre
US20080277565A1 (en) * 2007-05-07 2008-11-13 Dana Craig Bookbinder Optical fiber for optical power transmission

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
JOHN E. HEEBNER ET AL: "High brightness, quantum-defect-limited conversion efficiency in cladding-pumped Raman fiber amplifiers and oscillators", OPTICS EXPRESS, vol. 18, no. 14, 5 July 2010 (2010-07-05), pages 14705, XP055032373, ISSN: 1094-4087, DOI: 10.1364/OE.18.014705 *
JUNHUA JI ET AL: "Analysis of the Conversion to the First Stokes in Cladding-Pumped Fiber Raman Amplifiers", IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, IEEE SERVICE CENTER, PISCATAWAY, NJ, US, vol. 14, no. 1, 1 January 2009 (2009-01-01), pages 129 - 139, XP011243301, ISSN: 1077-260X *

Also Published As

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

Similar Documents

Publication Publication Date Title
WO2012150149A3 (de) Laserbearbeitungssystem mit einem in seiner brillanz einstellbaren bearbeitungslaserstrahl
WO2012107815A3 (en) Laser apparatus, extreme ultraviolet light generation system, method for controlling the laser apparatus, and method for generating the extreme ultraviolet light
JP2012523705A5 (de)
EP2662939A3 (de) Laser und Verstärker mit konischen Elementen
WO2013176927A3 (en) Coherent laser array control system and method
GB0601154D0 (en) High power short optical pulse source
WO2011066989A8 (de) Optische bestrahlungseinheit für eine anlage zur herstellung von werkstücken durch bestrahlen von pulverschichten mit laserstrahlung
WO2016198724A3 (en) Laser processing apparatus and method and an optical component therefor
WO2012154468A3 (en) Deep ultra-violet light sources for wafer and reticle inspection systems
GB2487829A (en) Method and system for controlling radio frequency power
WO2012039903A3 (en) All glass fiber laser cladding mode stripper
WO2017179051A3 (en) System for optical wireless power supply
WO2014094738A3 (de) Arclöschverfahren und leistungsversorgungssystem mit einem leistungswandler
AU2017101905A4 (en) Array laser radar light splitting device and light splitting method thereof
WO2011091170A3 (en) Homogenization of far field fiber coupled radiation
WO2011022547A3 (en) Angular beam adjustment systems and methods for laser systems
WO2018186920A3 (en) Tandem pumped fiber laser or fiber amplifier
WO2010031478A8 (de) Laserbearbeitungsgerät und verfahren zur bearbeitung von biologischem gewebe
IL288148A (en) System and method for spectral line shape optimization for fiber laser spectral beam integration
WO2014008909A8 (en) Amplifier device and method for amplifying laser pulses
TW200726565A (en) Laser processing apparatus using laser beam splitting
WO2011152654A3 (ko) 레이저 시스템
KR20180084284A (ko) 동축 도파관 공간결합기를 이용한 고출력 전력 증폭기
EP2665142A3 (de) Verfahren und Vorrichtung zum Aussenden von Wellenlängenvariablen-Licht
US20180323567A1 (en) Laser beam generation apparatus, laser machining device, and laser machining method

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12718942

Country of ref document: EP

Kind code of ref document: A2

WWE Wipo information: entry into national phase

Ref document number: 14115416

Country of ref document: US

122 Ep: pct application non-entry in european phase

Ref document number: 12718942

Country of ref document: EP

Kind code of ref document: A2