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dc.contributor.advisorJavanainen, Arto
dc.contributor.advisorGirard, Sylvain
dc.contributor.advisorLassila, Antti
dc.contributor.authorFranco, Rubén Enrique Montero
dc.date.accessioned2023-09-15T05:18:19Z
dc.date.available2023-09-15T05:18:19Z
dc.date.issued2023
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/89118
dc.description.abstractThis master's thesis focuses on developing a feedback loop system for stabilizing semiconductor lasers to low-pressure iodine gas absorption spectra. The goal is to generate stable wavelengths at 531 𝑛𝑚 and 688 𝑛𝑚, essential for precise two-colour length measurement interferometry in laboratories. Semiconductor lasers are versatile light sources with broad applications in telecommunications and scientific instrumentation. However, for accurate length measurement interferometry, a stable wavelength source is vital. The thesis proposes a feedback loop system that achieves relative frequency stability levels of 10^9 by utilizing low-pressure iodine gas absorption spectra to stabilize the lasers. The research involves creating a compact device using commercially available diode lasers and short iodine cells, resulting in a footprint of 15 𝑐𝑚 𝑥 15 𝑐𝑚 𝑥 10 𝑐𝑚 . Experimental evaluations demonstrate an uncertainty of 3 𝑀𝐻𝑧, a relative frequency stability in the order of 10^9 for both the green and red lasers with an Allan deviation in the order of 10^10 and 10^9 for the green and red lasers, respectively, making the system suitable for practical applications, including gauge block measurements. This work contributes to the advancement of two-colour length measurement interferometry by providing a compact and stable wavelength generation system. The research opens up possibilities for enhanced accuracy and reliability in scientific and industrial applications.en
dc.format.extent50
dc.language.isoen
dc.titleWhen fringe meets finesse : compact iodine stabilized lasers in two colour length interferometry
dc.identifier.urnURN:NBN:fi:jyu-202309155139
dc.type.ontasotMaster’s thesisen
dc.type.ontasotPro gradu -tutkielmafi
dc.contributor.tiedekuntaMatemaattis-luonnontieteellinen tiedekuntafi
dc.contributor.tiedekuntaFaculty of Sciencesen
dc.contributor.laitosFysiikan laitosfi
dc.contributor.laitosDepartment of Physicsen
dc.contributor.yliopistoJyväskylän yliopistofi
dc.contributor.yliopistoUniversity of Jyväskyläen
dc.contributor.oppiaineFysiikkafi
dc.contributor.oppiainePhysicsen
dc.rights.copyrightJulkaisu on tekijänoikeussäännösten alainen. Teosta voi lukea ja tulostaa henkilökohtaista käyttöä varten. Käyttö kaupallisiin tarkoituksiin on kielletty.fi
dc.rights.copyrightThis publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited.en
dc.contributor.oppiainekoodi4021
dc.subject.ysolaserit
dc.subject.ysojodi
dc.subject.ysolasertekniikka
dc.subject.ysomittaustekniikka
dc.subject.ysospektroskopia
dc.subject.ysolasers
dc.subject.ysoiodine
dc.subject.ysolaser technology
dc.subject.ysomeasuring technology
dc.subject.ysospectroscopy


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