Thulium-doped optical fibers for fiber lasers

0485700 - ÚFE 2018 RIV US eng C - Conference Paper (international conference)
Kamrádek, Michal - Aubrecht, Jan - Peterka, Pavel - Podrazký, Ondřej - Honzátko, Pavel - Cajzl, Jakub - Mrázek, Jan - Kubeček, V. - Kašík, Ivan
Thulium-doped optical fibers for fiber lasers.
Proceedings of SPIE - The International Society for Optical Engineering 2017. Vol. 10603. Bellingham: SPIE: The Society of Photo-Optical Instrumentation Engineers, 2017 - (Fliegel, K.; Páta, P.), č. článku 106030V. SPIE. ISBN 978-1-5106-1702-5. ISSN 0277-786X.
[Photonics, Devices, and Systems VII 2017. Prague (CZ), 28.08.2017-30.08.2017]
R&D Projects: GA ČR(CZ) GA17-20049S
Institutional support: RVO:67985882
Keywords : doped optical fibers * thulium * fiber lasers
OECD category: Optics (including laser optics and quantum optics)

We present preparation and characterization of thulium-doped silica-based optical fibers for fiber lasers. The fibers were prepared by modified chemical vapor deposition process and doped with alumina and thulium ions. Alumina co-doping was achieved through two different methods – solution doping and nanoparticle doping method. Prepared preforms were characterized in terms of refractive index profiles and dopants distribution. For the drawn fibers, their spectral attenuation, fluorescence lifetime and laser performance were measured. In the case of nanoparticle doping, better laser characteristics were observed. Discussion and explanation of the trends for laser efficiency improvement is given
Permanent Link: http://hdl.handle.net/11104/0280663