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

4 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",
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}

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 -