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Proceedings Paper

Characterization of holmium fibers with various concentrations for fiber laser applications around 2.1 μm
Author(s): Jan Aubrecht; Pavel Peterka; Pavel Honzatko; Yauhen Baravets; Michal Jelinek; Vaclav Kubecek; Maria Pawliszewska; Jaroslaw Sotor; Grzegorz Sobon; Krzysztof M. Abramski; Ivan Kasik
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Paper Abstract

In this work, we present experimental results of characterization of the developed holmium-doped silica-based optical fibers with holmium ions concentrations in the range from 1000 to 10000 ppm. The fibers were fabricated by the modified chemical vapor deposition and solution doping method. They were characterized in terms of their spectral attenuation, refractive index profile, and especially performance in fiber laser. Simultaneously, two different fiber laser setups were tested. In the first one, holmium-doped fiber in Fabry-Perot configuration was pumping by in house developed thulium-doped fiber laser in ring arrangement. In the second one, bulk-optic pump-coupling configuration, consisted of a commercially available thulium fiber laser emitting at 1940 nm and system of lenses and mirrors was used. We have focused on comparison of laser output powers, slope efficiencies, and laser thresholds for individual holmiumdoped fiber in these different laser arrangements. Finally, the application of the developed fiber in subpicosecond fiber laser with graphene-based saturable absorber for mode-locking operation was investigated.

Paper Details

Date Published: 27 April 2016
PDF: 7 pages
Proc. SPIE 9886, Micro-Structured and Specialty Optical Fibres IV, 988607 (27 April 2016); doi: 10.1117/12.2227618
Show Author Affiliations
Jan Aubrecht, Institute of Photonics and Electronics of the ASCR, v.v.i. (Czech Republic)
Pavel Peterka, Institute of Photonics and Electronics of the ASCR, v.v.i. (Czech Republic)
Pavel Honzatko, Institute of Photonics and Electronics of the ASCR, v.v.i. (Czech Republic)
Yauhen Baravets, Institute of Photonics and Electronics of the ASCR, v.v.i. (Czech Republic)
Michal Jelinek, Czech Technical Univ. in Prague (Czech Republic)
Vaclav Kubecek, Czech Technical Univ. in Prague (Czech Republic)
Maria Pawliszewska, Wroclaw Univ. of Technology (Poland)
Jaroslaw Sotor, Wroclaw Univ. of Technology (Poland)
Grzegorz Sobon, Wroclaw Univ. of Technology (Poland)
Krzysztof M. Abramski, Wroclaw Univ. of Technology (Poland)
Ivan Kasik, Institute of Photonics and Electronics of the ASCR, v.v.i. (Czech Republic)


Published in SPIE Proceedings Vol. 9886:
Micro-Structured and Specialty Optical Fibres IV
Kyriacos Kalli; Alexis Mendez, Editor(s)

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