Spectral properties of thulium doped optical fibers for fiber lasers around 2 micrometers

0485721 - ÚFE 2018 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Kamrádek, Michal - Aubrecht, Ivo - Peterka, Pavel - Podrazký, Ondřej - Honzátko, Pavel - Cajzl, Jakub - Mrázek, Jan - Kubeček, V. - Kašík, Ivan
Spectral properties of thulium doped optical fibers for fiber lasers around 2 micrometers.
Proceedings of SPIE, Micro-structured and Specialty Optical Fibres V, (vol.10232). Bellingham: SPIE, 2017 - (Kali, K.; Kaňka, J.; Mendez, A.), č. článku 1023205. ISBN 978-1-5106-0965-5.
[Conference on Micro-Structured and Specialty Optical Fibres V. Prague (CZ), 26.04.2017-27.04.2017]
Grant CEP: GA ČR(CZ) GA17-20049S
Institucionální podpora: RVO:67985882
Klíčová slova: thulium * fiber lasers * doped optical fibers
Obor OECD: Optics (including laser optics and quantum optics)

Silica optical fibers doped with rare-earth elements are key components of high-power fiber lasers operating in nearinfrared region up to 2.1 mu m. In this contribution we deal with preparation and optical characterization of silica-based optical preforms and fibers doped with thulium for fiber lasers operating around 2 mu m. A set of fibers with thulium concentration ranges 1000-5000 ppm was prepared by the MCVD solution doping method and characterized. A decrease of fluorescence lifetime of thulium from 487 mu s to 378 mu s was observed with increasing rare-earth concentration in fiber core. This phenomenon can be explained by energy transfer between ions and ion clustering. Fabricated fibers were suitable for use in fiber lasers
Trvalý link: http://hdl.handle.net/11104/0280671