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Thulium Cross Sections Temperature Dependence and its Effect on Fiber Laser Operation
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SYSNO ASEP 0583903 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Thulium Cross Sections Temperature Dependence and its Effect on Fiber Laser Operation Author(s) Peterka, Pavel (URE-Y) RID
Jiříčková, Bára (URE-Y)
Schreiber, Ondřej (URE-Y)
Grábner, Martin (URE-Y)Number of authors 4 Article number Mo.C6.3 Source Title 23rd International Conference on Transparent Optical Networks, ICTON 2023. - Varšava : IEEE, 2023 / Jaworski M. ; Marciniak M. - ISSN 2162-7339 - ISBN 979-835030303-2 Number of pages 4 s. Publication form Print - P Action 23rd International Conference on Transparent Optical Networks, ICTON 2023 Event date 02.07.2024 - 06.07.2024 VEvent location Bukurešť Country RO - Romania Event type WRD Language eng - English Country PL - Poland Keywords cooling ; cross sections ; fiber lasers ; fluorescence lifetime ; heating ; temperature effect ; thulium OECD category Optics (including laser optics and quantum optics) R&D Projects GA23-05701S GA ČR - Czech Science Foundation (CSF) Institutional support URE-Y - RVO:67985882 EID SCOPUS 85169412001 DOI 10.1109/ICTON59386.2023.10207214 Annotation Thulium fiber lasers operating at wavelengths at around 2 micrometers have many unique applications in medicine, material processing, nonlinear frequency conversion, defense etc., but their output power significantly lags behind its potential, looking for laser technology breakthroughs that would eventually enable further increase of their output power. The main power limiting factors are associated with thermal and temperature effects. In this paper, recently reported temperature-dependent thulium cross sections are reviewed as well as application of these cross-section spectra for prediction of thulium fiber laser operation using two models. Firstly, closed-form expressions for the laser threshold and slope efficiency of thulium fiber lasers pumped at 790 nm by an ideal and realistic two-for-one process are derived. Secondly, comprehensive spatially and spectrally resolved numerical model is used 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://ieeexplore.ieee.org/document/10207214
Number of the records: 1