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Tm:GGAG disordered garnet crystal for 2 µm diode-pumped solid-state laser
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SYSNO ASEP 0547625 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Tm:GGAG disordered garnet crystal for 2 µm diode-pumped solid-state laser Author(s) Kratochvíl, J. (CZ)
Boháček, Pavel (FZU-D) RID, ORCID, SAI
Šulc, J. (CZ)
Němec, M. (CZ)
Jelínková, H. (CZ)
Fibrich, M. (CZ)
Trunda, Bohumil (FZU-D)
Havlák, Lubomír (FZU-D) RID, ORCID
Jurek, Karel (FZU-D) RID, ORCID, SAI
Nikl, Martin (FZU-D) RID, ORCID, SAI
Prajzler, V. (CZ)Number of authors 11 Article number 115802 Source Title Laser Physics Letters. - : Institute of Physics Publishing - ISSN 1612-2011
Roč. 18, č. 11 (2021)Number of pages 8 s. Language eng - English Country DE - Germany Keywords Tm:GGAG ; disordered garnet ; thulium laser ; thulium concentration ; 2μm laser ; tunable laser Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 000700031500001 EID SCOPUS 85116431536 DOI 10.1088/1612-202X/ac2519 Annotation Lasing parameters and wavelength tunability of a new disordered solid-state active medium, Tm3+-doped gadolinium gallium aluminum garnet (Tm3+-doped Gd3(Ga1-xAlx)5O12, Tm:GGAG), were investigated. Five samples with thulium concentration ranging from 1.4 at.% to 9.2 at.% (Tm/Gd) were designed, grown and investigated. Basic spectroscopic characterization and measurement of a refractive index were performed. Each sample was tested as an active medium of a 2 µm laser, longitudinally diode-pumped at 786 nm. Tm3+ concentration dependence of laser parameters was investigated. The highest slope efficiency of 43% w.r.t. absorbed power in the pulsed regime and 35% in the CW regime was achieved with the 2.4 at.% (Tm/Gd) sample. All samples produced beams of good quality with estimated M^2 <= 1.6. Concentration-dependent tunability was investigated and a smooth continuous range of wavelengths, up to 187 nm wide, was recorded. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2022 Electronic address https://doi.org/10.1088/1612-202X/ac2519
Number of the records: 1