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Highly stable multirod side-pumped Ce:Nd:YAG solar laser with simultaneous multimode and TEM00-mode emission.

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Title: Highly stable multirod side-pumped Ce:Nd:YAG solar laser with simultaneous multimode and TEM00-mode emission.
Authors: Tibúrcio, Bruno D.1 (AUTHOR), Liang, Dawei1 (AUTHOR) dl@fct.unl.pt, Costa, Hugo1 (AUTHOR), Almeida, Joana1 (AUTHOR), Haeussler, Anita2 (AUTHOR), Guillot, Emmanuel2 (AUTHOR), Vistas, Cláudia R.1 (AUTHOR)
Source: Optical Materials. Jun2026, Vol. 174, pN.PAG-N.PAG. 1p.
Subjects: Nd-YAG lasers, Laser beams, Laser beam measurement, Industrial lasers
Abstract: The side-pumping of Ce:Nd:YAG solar lasers provides a more uniform solar light distribution inside the active medium compared to end-side-pumping schemes, enabling the enhancement of laser power and beam profile stability. However, to the best of our knowledge, there is no report on a systematic evaluation of solar laser power and beam profile stability simultaneously, as well as the simultaneous emission of multimode and TEM 00 -mode solar laser beams from the same pump cavity, attractive for laser material processing. Therefore, we present the first multirod side-pumped solar laser at 1064 nm in simultaneous multi-regime operation from a single laser head, with enhanced laser power and beam profile stabilities. The solar laser head was sun-pumped by the heliostat-parabolic system of Procédés Matériaux et Energie Solaire – Centre National de la Recherche Scientifique (PROMES-CNRS). A total solar laser power of 7.3 W was measured, of which 5.2 W solar laser power in multimode and 2.1 W in TEM 00 -mode. Laser power stability was improved by factors of 1.07 and 1.05 for multimode emission and for the total multimode/TEM 00 -mode solar laser emissions, respectively, with enhanced beam profile stability 2.5 times higher, compared to the previous scheme. The highly stable solar laser of this work demonstrated versatility for potential applications in industrial decarbonization, such as multi-beam laser and dynamic beam shaping welding processes. • First simultaneous multimode and TEM 00 -mode Ce:Nd:YAG solar laser emissions. • Laser power and beam profile stabilities over time was studied. • Laser power and beam profile stabilities were 2.5 times higher than previous record. [ABSTRACT FROM AUTHOR]
Copyright of Optical Materials is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 192567360
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  Label: Title
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  Data: Highly stable multirod side-pumped Ce:Nd:YAG solar laser with simultaneous multimode and TEM00-mode emission.
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  Data: <searchLink fieldCode="AR" term="%22Tibúrcio%2C+Bruno+D%2E%22">Tibúrcio, Bruno D.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liang%2C+Dawei%22">Liang, Dawei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> dl@fct.unl.pt</i><br /><searchLink fieldCode="AR" term="%22Costa%2C+Hugo%22">Costa, Hugo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Almeida%2C+Joana%22">Almeida, Joana</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Haeussler%2C+Anita%22">Haeussler, Anita</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Guillot%2C+Emmanuel%22">Guillot, Emmanuel</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Vistas%2C+Cláudia+R%2E%22">Vistas, Cláudia R.</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Optical+Materials%22">Optical Materials</searchLink>. Jun2026, Vol. 174, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Nd-YAG+lasers%22">Nd-YAG lasers</searchLink><br /><searchLink fieldCode="DE" term="%22Laser+beams%22">Laser beams</searchLink><br /><searchLink fieldCode="DE" term="%22Laser+beam+measurement%22">Laser beam measurement</searchLink><br /><searchLink fieldCode="DE" term="%22Industrial+lasers%22">Industrial lasers</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The side-pumping of Ce:Nd:YAG solar lasers provides a more uniform solar light distribution inside the active medium compared to end-side-pumping schemes, enabling the enhancement of laser power and beam profile stability. However, to the best of our knowledge, there is no report on a systematic evaluation of solar laser power and beam profile stability simultaneously, as well as the simultaneous emission of multimode and TEM 00 -mode solar laser beams from the same pump cavity, attractive for laser material processing. Therefore, we present the first multirod side-pumped solar laser at 1064 nm in simultaneous multi-regime operation from a single laser head, with enhanced laser power and beam profile stabilities. The solar laser head was sun-pumped by the heliostat-parabolic system of Procédés Matériaux et Energie Solaire – Centre National de la Recherche Scientifique (PROMES-CNRS). A total solar laser power of 7.3 W was measured, of which 5.2 W solar laser power in multimode and 2.1 W in TEM 00 -mode. Laser power stability was improved by factors of 1.07 and 1.05 for multimode emission and for the total multimode/TEM 00 -mode solar laser emissions, respectively, with enhanced beam profile stability 2.5 times higher, compared to the previous scheme. The highly stable solar laser of this work demonstrated versatility for potential applications in industrial decarbonization, such as multi-beam laser and dynamic beam shaping welding processes. • First simultaneous multimode and TEM 00 -mode Ce:Nd:YAG solar laser emissions. • Laser power and beam profile stabilities over time was studied. • Laser power and beam profile stabilities were 2.5 times higher than previous record. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Optical Materials is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.optmat.2026.117888
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      – Code: eng
        Text: English
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        StartPage: N.PAG
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        Type: general
      – SubjectFull: Laser beams
        Type: general
      – SubjectFull: Laser beam measurement
        Type: general
      – SubjectFull: Industrial lasers
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      – TitleFull: Highly stable multirod side-pumped Ce:Nd:YAG solar laser with simultaneous multimode and TEM00-mode emission.
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            NameFull: Tibúrcio, Bruno D.
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            NameFull: Liang, Dawei
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            NameFull: Costa, Hugo
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            – D: 01
              M: 06
              Text: Jun2026
              Type: published
              Y: 2026
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              Value: 174
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