When fringe meets finesse : compact iodine stabilized lasers in two colour length interferometry
dc.contributor.advisor | Javanainen, Arto | |
dc.contributor.advisor | Girard, Sylvain | |
dc.contributor.advisor | Lassila, Antti | |
dc.contributor.author | Franco, Rubén Enrique Montero | |
dc.date.accessioned | 2023-09-15T05:18:19Z | |
dc.date.available | 2023-09-15T05:18:19Z | |
dc.date.issued | 2023 | |
dc.identifier.uri | https://jyx.jyu.fi/handle/123456789/89118 | |
dc.description.abstract | This 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.extent | 50 | |
dc.language.iso | eng | |
dc.rights | In Copyright | |
dc.title | When fringe meets finesse : compact iodine stabilized lasers in two colour length interferometry | |
dc.type | master thesis | |
dc.identifier.urn | URN:NBN:fi:jyu-202309155139 | |
dc.type.ontasot | Master’s thesis | en |
dc.type.ontasot | Pro gradu -tutkielma | fi |
dc.contributor.tiedekunta | Matemaattis-luonnontieteellinen tiedekunta | fi |
dc.contributor.tiedekunta | Faculty of Sciences | en |
dc.contributor.laitos | Fysiikan laitos | fi |
dc.contributor.laitos | Department of Physics | en |
dc.contributor.yliopisto | Jyväskylän yliopisto | fi |
dc.contributor.yliopisto | University of Jyväskylä | en |
dc.contributor.oppiaine | Fysiikka | fi |
dc.contributor.oppiaine | Physics | en |
dc.type.coar | http://purl.org/coar/resource_type/c_bdcc | |
dc.rights.copyright | © The Author(s) | |
dc.rights.accesslevel | openAccess | |
dc.type.publication | masterThesis | |
dc.contributor.oppiainekoodi | 4021 | |
dc.subject.yso | laserit | |
dc.subject.yso | jodi | |
dc.subject.yso | lasertekniikka | |
dc.subject.yso | mittaustekniikka | |
dc.subject.yso | spektroskopia | |
dc.subject.yso | lasers | |
dc.subject.yso | iodine | |
dc.subject.yso | laser technology | |
dc.subject.yso | measuring technology | |
dc.subject.yso | spectroscopy | |
dc.rights.url | https://rightsstatements.org/page/InC/1.0/ |
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