Development of pedestal-free large mode area fibers withTm3+ doped silica nanostructured core

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F23%3A00580712" target="_blank" >RIV/67985882:_____/23:00580712 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1364/OE.503047" target="_blank" >https://doi.org/10.1364/OE.503047</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1364/OE.503047" target="_blank" >10.1364/OE.503047</a>

Result language
angličtina
Original language name
Development of pedestal-free large mode area fibers withTm3+ doped silica nanostructured core
Original language description
We present the pedestal-free thulium doped silica fiber with a large nanostructured core optimized for fiber lasers. The fiber is composed of over 6 thousand thulium doped silica nanorods with a diameter of 71 nm each which form a nanostructured step-index core. We study the influence of non-continuous distribution in nanoscale active areas on gain, beam quality, and fiber laser performance. The proof-of-concept fiber is effectively single mode for wavelength above 1.8 μm. We demonstrate the performance of the fiber in a laser setup pumped at 792 nm. Single mode laser emission with a slope efficiency of 29% at quasi-continuous output power of 4 W with M2= 1.3 at the emission spectrum 1880-1925 nm is achieved
Czech name
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Czech description
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Type
J<sub>SC</sub> - Article in a specialist periodical, which is included in the SCOPUS database
CEP classification
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OECD FORD branch
10306 - Optics (including laser optics and quantum optics)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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