WO2008045652A3 - Method and system for diffractive beam combining using doe combiner with passive phase control - Google Patents

Method and system for diffractive beam combining using doe combiner with passive phase control Download PDF

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Publication number
WO2008045652A3
WO2008045652A3 PCT/US2007/078272 US2007078272W WO2008045652A3 WO 2008045652 A3 WO2008045652 A3 WO 2008045652A3 US 2007078272 W US2007078272 W US 2007078272W WO 2008045652 A3 WO2008045652 A3 WO 2008045652A3
Authority
WO
WIPO (PCT)
Prior art keywords
phase control
array
low power
beam combining
beams
Prior art date
Application number
PCT/US2007/078272
Other languages
French (fr)
Other versions
WO2008045652A2 (en
Inventor
Joshua E Rothenberg
Robert R Rice
Sami A Shakir
Michael G Wickham
Original Assignee
Northrop Grumman Corp
Joshua E Rothenberg
Robert R Rice
Sami A Shakir
Michael G Wickham
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
Priority claimed from US11/543,613 external-priority patent/US7339727B1/en
Application filed by Northrop Grumman Corp, Joshua E Rothenberg, Robert R Rice, Sami A Shakir, Michael G Wickham filed Critical Northrop Grumman Corp
Priority to DE112007002367T priority Critical patent/DE112007002367B9/en
Publication of WO2008045652A2 publication Critical patent/WO2008045652A2/en
Publication of WO2008045652A3 publication Critical patent/WO2008045652A3/en

Links

Classifications

    • 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
    • B23K26/0604—Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams
    • 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
    • B23K26/0604—Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams
    • B23K26/0613—Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams having a common axis
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0009—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having refractive surfaces only
    • G02B19/0014—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having refractive surfaces only at least one surface having optical power
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
    • G02B19/0052—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a laser diode
    • G02B19/0057—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a laser diode in the form of a laser diode array, e.g. laser diode bar
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/108—Beam splitting or combining systems for sampling a portion of a beam or combining a small beam in a larger one, e.g. wherein the area ratio or power ratio of the divided beams significantly differs from unity, without spectral selectivity
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/1086—Beam splitting or combining systems operating by diffraction only
    • G02B27/1093—Beam splitting or combining systems operating by diffraction only for use with monochromatic radiation only, e.g. devices for splitting a single laser source
    • 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
    • H01S3/23—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
    • 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
    • H01S5/40—Arrangement of two or more semiconductor lasers, not provided for in groups H01S5/02 - H01S5/30
    • H01S5/4025—Array arrangements, e.g. constituted by discrete laser diodes or laser bar

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Lasers (AREA)
  • Laser Beam Processing (AREA)

Abstract

A system and method for combining plural low power light beams uses optical amplifiers (15) to transmit a plurality of light beams propagating at a common wavelength through an array of optical fiber emitters. The beams emitted from the array at a different propagation angles, are collimated, and incident on a dif tractive optical element (25) for combination into a coherent beam at a desired diffraction order. A beam splitter.or a periodic sampling grating on the diffractive optical element directs a low power sample beam (31) to a spatial filter that passes' an output back to the optical amplifiers for synchronizing phases of the constituenb beams.
PCT/US2007/078272 2006-10-05 2007-09-12 Method and system for diffractive beam combining using doe combiner with passive phase control WO2008045652A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112007002367T DE112007002367B9 (en) 2006-10-05 2007-09-12 Method and system for the diffractive combination of beams through a DOE beamformer with passive phase control

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/543,613 2006-10-05
US11/543,613 US7339727B1 (en) 2003-01-30 2006-10-05 Method and system for diffractive beam combining using DOE combiner with passive phase control

Publications (2)

Publication Number Publication Date
WO2008045652A2 WO2008045652A2 (en) 2008-04-17
WO2008045652A3 true WO2008045652A3 (en) 2008-06-19

Family

ID=39156299

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/078272 WO2008045652A2 (en) 2006-10-05 2007-09-12 Method and system for diffractive beam combining using doe combiner with passive phase control

Country Status (2)

Country Link
DE (1) DE112007002367B9 (en)
WO (1) WO2008045652A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105591278B (en) * 2014-10-23 2019-03-08 中国科学院理化技术研究所 High power all-solid state laser multi-wavelength spectrum synthesizer
CN111694162B (en) * 2020-06-22 2022-09-13 中国科学院西安光学精密机械研究所 Spectrum synthesis method and device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020181035A1 (en) * 2000-09-14 2002-12-05 John Donoghue Method and system for combining multiple low power laser sources to achieve high efficiency, high power outputs using transmission holographic methodologies
WO2003036766A2 (en) * 2001-10-23 2003-05-01 Torsana Laser Technologies A/S Laser apparatus
US20060132903A1 (en) * 2004-12-20 2006-06-22 Shakir Sami A Passive phasing of fiber amplifiers

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6208679B1 (en) 1998-09-08 2001-03-27 Massachusetts Institute Of Technology High-power multi-wavelength external cavity laser
US6327292B1 (en) 1998-09-08 2001-12-04 Massachusetts Institute Of Technology External cavity laser source using spectral beam combining in two dimensions
US6192062B1 (en) 1998-09-08 2001-02-20 Massachusetts Institute Of Technology Beam combining of diode laser array elements for high brightness and power
US6708003B1 (en) 1999-12-16 2004-03-16 Northrop Grumman Corporation Optical energy transmission system utilizing precise phase and amplitude control
US6697192B1 (en) * 2000-11-08 2004-02-24 Massachusetts Institute Of Technology High power, spectrally combined laser systems and related methods

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020181035A1 (en) * 2000-09-14 2002-12-05 John Donoghue Method and system for combining multiple low power laser sources to achieve high efficiency, high power outputs using transmission holographic methodologies
WO2003036766A2 (en) * 2001-10-23 2003-05-01 Torsana Laser Technologies A/S Laser apparatus
US20060132903A1 (en) * 2004-12-20 2006-06-22 Shakir Sami A Passive phasing of fiber amplifiers

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
FAN T Y ET AL: "Coherent (phased array) and wavelength (spectral) beam combining compared", PROCEEDINGS OF THE SPIE - THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING SPIE-INT. SOC. OPT. ENG USA, vol. 5709, no. 1, 2005, pages 157 - 164, XP002473137, ISSN: 0277-786X *
SHAHRIAR M S ET AL: "Coherent and incoherent beam combination using thick holographic substrates", OPTICS COMMUNICATIONS, NORTH-HOLLAND PUBLISHING CO. AMSTERDAM, NL, vol. 220, no. 1-3, 1 May 2003 (2003-05-01), pages 75 - 83, XP004422618, ISSN: 0030-4018 *
TONDUSSON M ET AL: "Coherent combination of four laser beams in a multi-axis Fourier cavity using a diffractive optical element; Coherent combination of four laser beams in a multi-axis Fourier cavity using a diffractive optical element", JOURNAL OF OPTICS. A, PURE AND APPLIED OPTICS, INSTITUTE OF PHYSICS PUBLISHING, BRISTOL,, GB, vol. 3, no. 6, 1 November 2001 (2001-11-01), pages 521 - 526, XP020080811, ISSN: 1464-4258 *

Also Published As

Publication number Publication date
DE112007002367B4 (en) 2013-06-13
DE112007002367T9 (en) 2013-04-18
DE112007002367T5 (en) 2009-08-13
WO2008045652A2 (en) 2008-04-17
DE112007002367B9 (en) 2013-07-18

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