Adaptive multibeam laser cutting of thin steel sheets with fiber laser using spatial light modulator

Jarno Kaakkunen (Corresponding Author), Petri Laakso, Veli Kujanpää

    Research output: Contribution to journalArticleScientificpeer-review

    5 Citations (Scopus)

    Abstract

    Laser cutting with multibeam diffraction pattern using an adaptive optics is studied. Infrared (IR) continuous single-mode fiber laser with maximum power of 200W is applied to laser cutting of thin metal sheets, together with liquid crystal on silicon spatial light modulator (SLM). SLM can be used as the adaptive diffractive optical element, which can modify intensity profile of the laser beam almost arbitrary. In studies single Gaussian laser beam was divided into multiple spots. It was found out that with this way it is possible to enhance the cutting quality and also decrease pressure of the needed assist gas. Multibeam configuration enabled to laser cut burr free with 50% less protection gas pressure compared to single beam laser cutting with conventional optics.
    Original languageEnglish
    Article number032008
    JournalJournal of Laser Applications
    Volume26
    Issue number3
    DOIs
    Publication statusPublished - 2014
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    laser cutting
    Steel sheet
    light modulators
    Fiber lasers
    fiber lasers
    steels
    Laser beams
    Lasers
    Laser beam cutting
    Gases
    laser beams
    Diffractive optical elements
    Liquid Crystals
    metal sheets
    Adaptive optics
    Silicon
    Single mode fibers
    Sheet metal
    adaptive optics
    Liquid crystals

    Keywords

    • laser cutting
    • adaptive optics
    • diffractive optical element

    Cite this

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    title = "Adaptive multibeam laser cutting of thin steel sheets with fiber laser using spatial light modulator",
    abstract = "Laser cutting with multibeam diffraction pattern using an adaptive optics is studied. Infrared (IR) continuous single-mode fiber laser with maximum power of 200W is applied to laser cutting of thin metal sheets, together with liquid crystal on silicon spatial light modulator (SLM). SLM can be used as the adaptive diffractive optical element, which can modify intensity profile of the laser beam almost arbitrary. In studies single Gaussian laser beam was divided into multiple spots. It was found out that with this way it is possible to enhance the cutting quality and also decrease pressure of the needed assist gas. Multibeam configuration enabled to laser cut burr free with 50{\%} less protection gas pressure compared to single beam laser cutting with conventional optics.",
    keywords = "laser cutting, adaptive optics, diffractive optical element",
    author = "Jarno Kaakkunen and Petri Laakso and Veli Kujanp{\"a}{\"a}",
    note = "Project code: 81841",
    year = "2014",
    doi = "10.2351/1.4883935",
    language = "English",
    volume = "26",
    journal = "Journal of Laser Applications",
    issn = "1042-346X",
    number = "3",

    }

    Adaptive multibeam laser cutting of thin steel sheets with fiber laser using spatial light modulator. / Kaakkunen, Jarno (Corresponding Author); Laakso, Petri; Kujanpää, Veli.

    In: Journal of Laser Applications, Vol. 26, No. 3, 032008, 2014.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Adaptive multibeam laser cutting of thin steel sheets with fiber laser using spatial light modulator

    AU - Kaakkunen, Jarno

    AU - Laakso, Petri

    AU - Kujanpää, Veli

    N1 - Project code: 81841

    PY - 2014

    Y1 - 2014

    N2 - Laser cutting with multibeam diffraction pattern using an adaptive optics is studied. Infrared (IR) continuous single-mode fiber laser with maximum power of 200W is applied to laser cutting of thin metal sheets, together with liquid crystal on silicon spatial light modulator (SLM). SLM can be used as the adaptive diffractive optical element, which can modify intensity profile of the laser beam almost arbitrary. In studies single Gaussian laser beam was divided into multiple spots. It was found out that with this way it is possible to enhance the cutting quality and also decrease pressure of the needed assist gas. Multibeam configuration enabled to laser cut burr free with 50% less protection gas pressure compared to single beam laser cutting with conventional optics.

    AB - Laser cutting with multibeam diffraction pattern using an adaptive optics is studied. Infrared (IR) continuous single-mode fiber laser with maximum power of 200W is applied to laser cutting of thin metal sheets, together with liquid crystal on silicon spatial light modulator (SLM). SLM can be used as the adaptive diffractive optical element, which can modify intensity profile of the laser beam almost arbitrary. In studies single Gaussian laser beam was divided into multiple spots. It was found out that with this way it is possible to enhance the cutting quality and also decrease pressure of the needed assist gas. Multibeam configuration enabled to laser cut burr free with 50% less protection gas pressure compared to single beam laser cutting with conventional optics.

    KW - laser cutting

    KW - adaptive optics

    KW - diffractive optical element

    U2 - 10.2351/1.4883935

    DO - 10.2351/1.4883935

    M3 - Article

    VL - 26

    JO - Journal of Laser Applications

    JF - Journal of Laser Applications

    SN - 1042-346X

    IS - 3

    M1 - 032008

    ER -