Thermally-Insensitive Hollow-Core Fibre Fabry-Perot Interferometer for Laser Stabilisation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F24%3A00379716" target="_blank" >RIV/68407700:21230/24:00379716 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1109/EFTF61992.2024" target="_blank" >https://doi.org/10.1109/EFTF61992.2024</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/EFTF61992.2024" target="_blank" >10.1109/EFTF61992.2024</a>
Alternative languages
Result language
angličtina
Original language name
Thermally-Insensitive Hollow-Core Fibre Fabry-Perot Interferometer for Laser Stabilisation
Original language description
Fiber-based Fabry-Perot interferometers (FPI) can provide long delay in a compact package and after fabrication, are alignment-free. This delay is, unfortunately, sensitive to environmental temperature variations duet the fiber thermal sensitivity. This sensitivity is reduced by about 20 times when using hollow core fiber (HCF) rather than standard SMF. HCF-FPIs have been demonstrated with lengths of tens of meters and finesse in excess of 1002 HCF. As HCF thermal sensitivity is limited by thermal expansion, it can be further reduced by winding the HCF onto a drum made of a material with zero or slightly negative coefficient of thermal expansion (CTE). When the temperature is increased, the tension under which the HCF is wound on the drum is reduced, but its length follows the size of the drum. We present a HCF-FPI that achieves zero thermal sensitivity for the first time by winding it on a Neoceram spool that is a commercially available glass ceramic with slightly negative CTE.
Czech name
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Czech description
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Classification
Type
O - Miscellaneous
CEP classification
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OECD FORD branch
20201 - Electrical and electronic engineering
Result continuities
Project
<a href="/en/project/GA22-32180S" target="_blank" >GA22-32180S: Advanced microwave photonics techniques based on hollow-core optical fibers</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů