Wavefront aberration detection of a Structured Laser Beam using artificial intelligence and its application in alignment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F23%3A00584187" target="_blank" >RIV/61389021:_____/23:00584187 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/46747885:24220/23:00011426 RIV/46747885:24510/23:00011426

Výsledek na webu

<a href="https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12669/2676015/Wavefront-aberration-detection-of-a-structured-laser-beam-using-artificial/10.1117/12.2676015.short" target="_blank" >https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12669/2676015/Wavefront-aberration-detection-of-a-structured-laser-beam-using-artificial/10.1117/12.2676015.short</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2676015" target="_blank" >10.1117/12.2676015</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Wavefront aberration detection of a Structured Laser Beam using artificial intelligence and its application in alignment

Popis výsledku v původním jazyce

The Structured Laser Beam (SLB) is a pseudo-non-diffracting laser beam that shares many characteristics with a Bessel beam. However, it can theoretically propagate over an unlimited distance while maintaining an extremely low inner core divergence of only 0.01 mrad. This makes it a promising candidate for precise longdistance alignment applications such as the alignment of particle accelerator components at CERN. In this work, a novel method to detect low-order wavefront aberrations induced by an SLB generator, that can affect the referential straightness of the beam, is presented. Our approach is based on the analysis of a single intensity distribution of an SLB. The coefficients of the Zernike polynomials are estimated using artificial intelligence before least-squares fitting is used to refine the result. This approach ensures that the fitting avoids local minima. This method provides a novel way to analyze the optical aberrations induced by the SLB generator and estimate the quality of the beam. Furthermore, it has the potential to be used for the alignment of complex lens systems, where an SLB can serve as a reference optical axis to which the other optical elements can be aligned.

Název v anglickém jazyce

Wavefront aberration detection of a Structured Laser Beam using artificial intelligence and its application in alignment

Popis výsledku anglicky

The Structured Laser Beam (SLB) is a pseudo-non-diffracting laser beam that shares many characteristics with a Bessel beam. However, it can theoretically propagate over an unlimited distance while maintaining an extremely low inner core divergence of only 0.01 mrad. This makes it a promising candidate for precise longdistance alignment applications such as the alignment of particle accelerator components at CERN. In this work, a novel method to detect low-order wavefront aberrations induced by an SLB generator, that can affect the referential straightness of the beam, is presented. Our approach is based on the analysis of a single intensity distribution of an SLB. The coefficients of the Zernike polynomials are estimated using artificial intelligence before least-squares fitting is used to refine the result. This approach ensures that the fitting avoids local minima. This method provides a novel way to analyze the optical aberrations induced by the SLB generator and estimate the quality of the beam. Furthermore, it has the potential to be used for the alignment of complex lens systems, where an SLB can serve as a reference optical axis to which the other optical elements can be aligned.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

<a href="/cs/project/EF16_026%2F0008390" target="_blank" >EF16_026/0008390: Partnerství pro excelenci v superpřesné optice</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proceedings of SPIE - The International Society for Optical Engineering

ISBN

978-151066552-1

ISSN

—

e-ISSN

—

Počet stran výsledku

11

Strana od-do

126690E

Název nakladatele

SPIE

Místo vydání

Bellingham

Místo konání akce

Sn Diego

Datum konání akce

20. 8. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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