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Luminescence lifetime of Er-doped silica optical fibers – the role of composition and fabrication processing
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SYSNO ASEP 0584355 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Luminescence lifetime of Er-doped silica optical fibers – the role of composition and fabrication processing Author(s) Vařák, Petr (URE-Y)
Kašík, Ivan (URE-Y) RID
Peterka, Pavel (URE-Y) RID
Aubrecht, Jan (URE-Y) RID
Mrázek, Jan (URE-Y) RID, ORCID
Kamrádek, Michal (URE-Y)
Podrazký, Ondřej (URE-Y) RID
Bartoň, Ivo (URE-Y) ORCID, RID
Franczyk, M. (PL)
Buczynski, R. (PL)
Honzátko, Pavel (URE-Y) RIDNumber of authors 11 Article number 1257310 Source Title Proceedings of SPIE - The International Society for Optical Engineering, Specialty Optical Fibres, 12573. - Bellingham : SPIE, 2023 / Kalli K. ; Mendez A. ; Peterka P. - ISSN 0277-786X - ISBN 978-151066266-7 Number of pages 7 s. Publication form Print - P Action The International Society for Optical Engineering-Specialty Optical Fibres 2023 Event date 24.04.2023 - 27.04.2023 VEvent location Praha Country CZ - Czech Republic Event type WRD Language eng - English Country US - United States Keywords fiber lasers ; fluorescence lifetime ; luminescence ; Optical fiber ; preform ; silica glass ; erbium OECD category Electrical and electronic engineering R&D Projects GF21-45431L GA ČR - Czech Science Foundation (CSF) Institutional support URE-Y - RVO:67985882 EID SCOPUS 85170639395 DOI 10.1117/12.2666162 Annotation For applications in fiber lasers and amplifiers, silica glass remains a perspective host for rare-earth ions thanks to favorable material properties. However, the luminescence of RE ions is hindered by the high phonon energy of silica lattice and low solubility of RE ions, which cause luminescence quenching. Pure silica thus needs to be co-doped with suitable additives such as Al2O3, which form a beneficial low-phonon environment and increase the solubility of RE ions. Luminescence lifetime is one of the most important parameters to determine the suitability of RE-doped silica fibers for laser operation. Optical fibers with higher luminescence lifetime typically exhibit higher values of slope efficiency and lower laser threshold. It was previously shown that the environment of Tm3+, Ho3+ or Yb3+ ions and luminescence lifetime may be significantly affected by fabrication processing at high temperatures, probably due to the chemical changes occurring in the matrix. However, the effect of fabrication processing on the spectroscopic properties of another important RE ion, Er3+, is different to the other ions and remains unclear. In this contribution, we present a study on the fluorescence lifetime of a highly-doped optical fiber prepared by the MCVD method combined with nanoparticle-doping. The fluorescence lifetime of Er3+ was studied in several stages of fabrication processing. The influence of fabrication processing on the fluorescence lifetime of Er3+ ions was analyzed and discussed 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 2024 Electronic address https://www.spiedigitallibrary.org/conference-proceedings-of-spie/12573/1257310/Luminescence-lifetime-of-Er-doped-silica-optical-fibers--the/10.1117/12.2666162.short#_=_
Number of the records: 1