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Holmium-doped optical fibers for efficient fiber lasers
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SYSNO ASEP 0540935 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Holmium-doped optical fibers for efficient fiber lasers Author(s) Kamrádek, Michal (URE-Y)
Kašík, Ivan (URE-Y) RID
Aubrecht, Jan (URE-Y) RID
Mrázek, Jan (URE-Y) RID, ORCID
Podrazký, Ondřej (URE-Y) RID
Cajzl, Jakub (URE-Y)
Vařák, Petr (URE-Y)
Kubeček, V. (CZ)
Peterka, Pavel (URE-Y) RID
Honzátko, Pavel (URE-Y) RIDNumber of authors 10 Article number 113550C Source Title Proceedings of SPIE, Micro-Structured and Specialty Optical Fibres VI, 11355. - BELLINGHAM : SPIE, 2020 / Kalli K ; Bunge CA - ISSN 0277-786X - ISBN 978-1-5106-3483-1 Number of pages 7 s. Publication form Print - P Action Micro-Structured and Specialty Optical Fibres VI Event date 06.04.2020 - 10.04.2020 VEvent location None Country FR - France Event type WRD Language eng - English Country US - United States Keywords Doped optical fibers ; Fiber lasers ; Holmium Subject RIV BH - Optics, Masers, Lasers OECD category Optics (including laser optics and quantum optics) R&D Projects GA19-03141S GA ČR - Czech Science Foundation (CSF) Institutional support URE-Y - RVO:67985882 UT WOS 000576761300008 EID SCOPUS 85085216972 DOI 10.1117/12.2559176 Annotation Holmium-doped silica-based optical fibers belong to intensively studied materials for fiber laser sources operating around 2.1 mu m. In this contribution, we deal with silica -based optical fibers doped with holmium and aluminum oxide. The fibers were prepared by the modified chemical vapor deposition method combined either with a solution doping or a nanoparticle doping. A large set of fibers with various dopant concentrations was characterized related to their fluorescence lifetime, laser threshold and slope efficiency. The best -performance fibers exhibited a fluorescence lifetime longer than 1 ms, a laser threshold under 200 mW and a slope efficiency around 80%. These characteristics are discussed regarding the doping method and dopant concentrations Workplace Institute of Radio Engineering and Electronics Contact Petr Vacek, vacek@ufe.cz, Tel.: 266 773 413, 266 773 438, 266 773 488 Year of Publishing 2021 Electronic address https://doi.org/10.1117/12.2559176
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