Robust beam width estimation with sub-pixel resolution in uncontrolled imaging conditions

Pieter Verhulst; Guy Verschaffelt; Rik Paesen

doi:10.1364/AO.474571

Robust beam width estimation with sub-pixel resolution in uncontrolled imaging conditions

Pieter Verhulst, Guy Verschaffelt, Rik Paesen

Onderzoeksoutput: Article › peer review

1 Citaat (Scopus)

Samenvatting

Estimations of laser beam widths can yield vastly different results depending on the used beam width measurement method and the measurement conditions. We expand upon an imaging analysis method, proposed in the field of laser eye safety, to determine a laser’s beam width based on the ratio between encircled energy and diameter. We show this method to be highly valuable when determining beam widths in noisy imaging conditions and in the presence of background illumination. Furthermore, this method enables estimations with sub-pixel resolution on beam widths with a spatial extent of a few pixels.

Originele taal-2	English
Pagina's (van-tot)	10807-10818
Aantal pagina's	12
Tijdschrift	Applied Optics
Volume	61
Nummer van het tijdschrift	36
DOI's	https://doi.org/10.1364/AO.474571
Status	Published - 20 dec 2022

Bibliografische nota

Funding Information:
Acknowledgment. This project received funding from Flanders Innovation and Entrepreneurship agency (VLAIO) through a Baekeland. Project partners also received funding from Research Foundation—Flanders (FWO) as well as from the Research Council of the Vrije Universiteit Brussel (VUB).

Funding Information:
Agentschap Innoveren en Ondernemen (HBC.2018.2109); Fonds Wetenschappelijk Onderzoek (G006020N, G029519N).

Publisher Copyright:
© 2022 Optica Publishing Group.

Copyright:
Copyright 2022 Elsevier B.V., All rights reserved.

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10.1364/AO.474571

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Citeer dit

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title = "Robust beam width estimation with sub-pixel resolution in uncontrolled imaging conditions",

abstract = "Estimations of laser beam widths can yield vastly different results depending on the used beam width measurement method and the measurement conditions. We expand upon an imaging analysis method, proposed in the field of laser eye safety, to determine a laser{\textquoteright}s beam width based on the ratio between encircled energy and diameter. We show this method to be highly valuable when determining beam widths in noisy imaging conditions and in the presence of background illumination. Furthermore, this method enables estimations with sub-pixel resolution on beam widths with a spatial extent of a few pixels.",

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AU - Verhulst, Pieter

AU - Verschaffelt, Guy

AU - Paesen, Rik

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Y1 - 2022/12/20

N2 - Estimations of laser beam widths can yield vastly different results depending on the used beam width measurement method and the measurement conditions. We expand upon an imaging analysis method, proposed in the field of laser eye safety, to determine a laser’s beam width based on the ratio between encircled energy and diameter. We show this method to be highly valuable when determining beam widths in noisy imaging conditions and in the presence of background illumination. Furthermore, this method enables estimations with sub-pixel resolution on beam widths with a spatial extent of a few pixels.

AB - Estimations of laser beam widths can yield vastly different results depending on the used beam width measurement method and the measurement conditions. We expand upon an imaging analysis method, proposed in the field of laser eye safety, to determine a laser’s beam width based on the ratio between encircled energy and diameter. We show this method to be highly valuable when determining beam widths in noisy imaging conditions and in the presence of background illumination. Furthermore, this method enables estimations with sub-pixel resolution on beam widths with a spatial extent of a few pixels.

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SN - 1559-128X

IS - 36

ER -

Robust beam width estimation with sub-pixel resolution in uncontrolled imaging conditions

Samenvatting

Bibliografische nota

Toegang tot document

Andere bestanden en links

Vingerafdruk

Projecten

FWOAL960: Neuromorfe fotonische informatieverwerking met hoge snelheid en laag vermogenverbruik met chaotische caviteiten

VLAOO9: Baekeland Mandaat: Laag vermogen VCSEL arrays voor hoog performante multi-straal LIDAR

FWOAL906: Space division multiplexing in standaard multimode optische vezels op basis van het herkennen van speckle patronen

Citeer dit