User defined intensity profile laser beam

Drachenberg, Derrek R.; Dawson, Jay W.; Guss, Gabriel M.; Pax, Paul H.; Rubenchik, Alexander M.; Matthews, Manyilibo J.

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Title: User defined intensity profile laser beam

Abstract

A high-power laser beam with an arbitrary intensity profile is produced. Such beam has a variety of uses including for laser materials processing such as powder bed fusion additive manufacturing. Several challenges in additive manufacturing are mitigated with the present non-uniform intensity laser profiles. Nonuniform shapes include a set of intensity pixels in a line that could print a wide stripe area instead of just a single line. One example uses the multimode interference pattern from the output of a ribbon fiber which is imaged onto a work piece. The interference pattern is controlled to allow turning on or off of ‘pixels’ along a line which can be used to shape the beam and form the additively manufactured part.

Inventors:: Drachenberg, Derrek R.; Dawson, Jay W.; Guss, Gabriel M.; Pax, Paul H.; Rubenchik, Alexander M.; Matthews, Manyilibo J.

Issue Date:: 2021-04-13

Research Org.:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1823854

Patent Number(s):: 10978849

Application Number:: 16/263,422

Assignee:: Lawrence Livermore National Security, LLC (Livermore, CA)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B23 - MACHINE TOOLS B23K - SOLDERING OR UNSOLDERING

B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29C - SHAPING OR JOINING OF PLASTICS

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B - PERFORMING OPERATIONS B23 - MACHINE TOOLS B23K - SOLDERING OR UNSOLDERING
B23K26/0617 - {and with spots spaced along the common axis}
B23K26/073 - Shaping the laser spot

B - PERFORMING OPERATIONS B29 - WORKING OF PLASTICS B29C - SHAPING OR JOINING OF PLASTICS
B29C64/268 - using laser beams

B - PERFORMING OPERATIONS B33 - ADDITIVE MANUFACTURING TECHNOLOGY B33Y - ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
B33Y30/00 - Apparatus for additive manufacturing

G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
G02B1/005 - {made of photonic crystals or photonic band gap materials
G02B26/103 - {having movable or deformable optical fibres, light guides or waveguides as scanning elements
G02B6/02042 - {Multicore optical fibres}
G02B6/262 - {Optical details of coupling light into, or out of, or between fibre ends, e.g. special fibre end shapes or associated optical elements}

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT
H01S2301/20 - Lasers with a special output beam profile or cross-section, e.g. non-Gaussian
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
H01S3/0085 - {Modulating the output, i.e. the laser beam is modulated outside the laser cavity}
H01S3/06729 - {Peculiar transverse fibre profile}
H01S3/1001 - {by controlling the optical pumping}
H01S3/10015 - {by monitoring or controlling, e.g. attenuating, the input signal}
H01S3/1003 - {tunable optical elements, e.g. acousto-optic filters, tunable gratings}
H01S3/10038 - {Amplitude control}
H01S3/10053 - {Phase control}
H01S3/2308 - {Amplifier arrangements, e.g. MOPA}

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DOE Contract Number:: AC52-07NA27344

Resource Type:: Patent

Resource Relation:: Patent File Date: 01/31/2019

Country of Publication:: United States

Language:: English

Citation Formats


                    Drachenberg, Derrek R., Dawson, Jay W., Guss, Gabriel M., Pax, Paul H., Rubenchik, Alexander M., and Matthews, Manyilibo J. User defined intensity profile laser beam.  United States: N. p., 2021. 
        Web.

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                    Drachenberg, Derrek R., Dawson, Jay W., Guss, Gabriel M., Pax, Paul H., Rubenchik, Alexander M., & Matthews, Manyilibo J. User defined intensity profile laser beam.  United States.

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                    Drachenberg, Derrek R., Dawson, Jay W., Guss, Gabriel M., Pax, Paul H., Rubenchik, Alexander M., and Matthews, Manyilibo J. Tue .  
        "User defined intensity profile laser beam".  United States.  https://www.osti.gov/servlets/purl/1823854.

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@article{osti_1823854,

  title        = {User defined intensity profile laser beam},

  author       = {Drachenberg, Derrek R. and Dawson, Jay W. and Guss, Gabriel M. and Pax, Paul H. and Rubenchik, Alexander M. and Matthews, Manyilibo J.},

  abstractNote = {A high-power laser beam with an arbitrary intensity profile is produced. Such beam has a variety of uses including for laser materials processing such as powder bed fusion additive manufacturing. Several challenges in additive manufacturing are mitigated with the present non-uniform intensity laser profiles. Nonuniform shapes include a set of intensity pixels in a line that could print a wide stripe area instead of just a single line. One example uses the multimode interference pattern from the output of a ribbon fiber which is imaged onto a work piece. The interference pattern is controlled to allow turning on or off of ‘pixels’ along a line which can be used to shape the beam and form the additively manufactured part.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2021},

  month        = {4}

}

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Works referenced in this record:

Diffractive Optical Elements for Transformation of Modes in Lasers
patent-application, November 2015

Sridharan, Arun K.; Pax, PAul H.; Heebner, John E.
US Patent Application 14/797003; 20150340835
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Device for Generating Laser Radiation Having a Linear Intensity Distribution
patent-application, February 2016

Lissotschenko, Vitalij; Harten, Paul Alexander
US Patent Application 14/782239; 20160041397
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Laser system for the ionization of a sample by matrix-assisted laser desorption in mass spectrometric analysis
patent, June 2008

Haase, Andreas; Kayser, Markus; Höhndorf, Jens
US Patent Document 7,385,192
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7385192

3-Dimensional laser beam guidance system
patent, February 1990

Bille, Josef F.; Brown, Stuart I.
US Patent Document 4,901,718
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4901718

Laser system for the ionization of a sample by matrix-assisted laser desorption in mass spectrometric analysis
patent-application, April 2006

Haase, Andreas; Kayser, Markus; Hohndorf, Jens
US Patent Application 11/226855; 20060071160
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20060071160

Antiguided fiber ribbon laser
patent-application, February 2002

Wilcox, Russell B.; Page, Ralph H.; Beach, Raymond J.
US Patent Application 09/793820; 20020024727
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20020024727

Laser system for the ionization of a sample by matrix-assisted laser desorption in mass spectrometric analysis
patent, June 2007

Haase, Andreas; Kayser, Markus; Höhndorf, Jens
US Patent Document 7,235,781
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/7235781

Diffractive optical elements for transformation of modes in lasers
patent-application, November 2013

Sridharan, Arun K.; Pax, Paul H.; Heebner, John E.
US Patent Application 13/791563; 20130294468
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/20130294468

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Similar Records

Title: User defined intensity profile laser beam

Abstract

Citation Formats

Diffractive Optical Elements for Transformation of Modes in Lasers patent-application, November 2015

Device for Generating Laser Radiation Having a Linear Intensity Distribution patent-application, February 2016

Laser system for the ionization of a sample by matrix-assisted laser desorption in mass spectrometric analysis patent, June 2008

3-Dimensional laser beam guidance system patent, February 1990

Laser system for the ionization of a sample by matrix-assisted laser desorption in mass spectrometric analysis patent-application, April 2006

Antiguided fiber ribbon laser patent-application, February 2002

Laser system for the ionization of a sample by matrix-assisted laser desorption in mass spectrometric analysis patent, June 2007

Diffractive optical elements for transformation of modes in lasers patent-application, November 2013

Diffractive Optical Elements for Transformation of Modes in Lasers
patent-application, November 2015

Device for Generating Laser Radiation Having a Linear Intensity Distribution
patent-application, February 2016

Laser system for the ionization of a sample by matrix-assisted laser desorption in mass spectrometric analysis
patent, June 2008

3-Dimensional laser beam guidance system
patent, February 1990

Laser system for the ionization of a sample by matrix-assisted laser desorption in mass spectrometric analysis
patent-application, April 2006

Antiguided fiber ribbon laser
patent-application, February 2002

Laser system for the ionization of a sample by matrix-assisted laser desorption in mass spectrometric analysis
patent, June 2007

Diffractive optical elements for transformation of modes in lasers
patent-application, November 2013