7 May 2015 Characterization of double-clad thulium-doped fiber with increased quantum conversion efficiency
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In this paper we present experimental results of characterization of the experimentally prepared thulium-doped optical fibers in double-clad hexagonal fiber geometry for cladding optical pumping at a wavelength of 793 nanometers. The fiber was fabricated by the modified chemical vapor deposition and solution doping method and coated with polymer with lower refractive index than silica. The fiber was characterized in views of its refractive index profiles, thulium ions concentration, spectral absorptions, fluorescence lifetime, and performance in fiber laser.
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Jan Aubrecht, Jan Aubrecht, Jakub Cajzl, Jakub Cajzl, Pavel Peterka, Pavel Peterka, Pavel Honzátko, Pavel Honzátko, Pavel Koška, Pavel Koška, Yauhen Baravets, Yauhen Baravets, Martin Becker, Martin Becker, Ondřej Podrazký, Ondřej Podrazký, Filip Todorov, Filip Todorov, Ivan Kašík, Ivan Kašík, } "Characterization of double-clad thulium-doped fiber with increased quantum conversion efficiency", Proc. SPIE 9507, Micro-structured and Specialty Optical Fibres IV, 95070P (7 May 2015); doi: 10.1117/12.2179630; https://doi.org/10.1117/12.2179630

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