Number of the records: 1
Energy transfer coefficients in thulium-doped silica fibers
- 1.
SYSNO ASEP 0543288 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Energy transfer coefficients in thulium-doped silica fibers Author(s) Kamrádek, Michal (URE-Y)
Aubrecht, Jan (URE-Y) RID
Vařák, Petr (URE-Y)
Cajzl, J. (CZ)
Kubeček, V. (CZ)
Honzátko, Pavel (URE-Y) RID
Kašík, Ivan (URE-Y) RID
Peterka, Pavel (URE-Y) RIDNumber of authors 8 Source Title Optical Materials Express. - : Optical Society of America - ISSN 2159-3930
Roč. 11, č. 6 (2021), s. 1805-1814Number of pages 10 s. Publication form Print - P Language eng - English Country US - United States Keywords Energy transfer ; Fiber lasers ; Silica ; Thulium 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) Method of publishing Open access Institutional support URE-Y - RVO:67985882 UT WOS 000656890500001 DOI 10.1364/OME.427456 Annotation Energy transfer coefficients in thulium-doped silica fibers are key parameters for a reliable numerical modeling and optimization of high-power fiber lasers pumped at 790 nm and emitting around eye-safer wavelength of 2 mu m. We report on determination of the energy transfer coefficients by comparing experimental values and rate-equation-based modeling of thulium fluorescence decays. The study was performed using two pump, 792 nm and 1620 nm, and two signal, 800 nm and 2 mu m, wavelengths. The following values were obtained k(3011) = (1.9 +/- 0.2) x 10(-22 )m(3 )S(-1),( ) k(1130) = (1.4 +/- 0.2) x 10(-23) m(3) S-1 and k(1120) = (3.5 +/- 0.1) x 10(-23) m(3) s(-1). To the best of our knowledge, this study involves so far the most comprehensive comparison of various fluorescence decays in terms of excitation and detection wavelengths as well as excitation powers 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 2022 Electronic address https://doi.org/10.1364/OME.427456
Number of the records: 1