Počet záznamů: 1
Nanoparticle and Solution Doping for Efficient Holmium Fiber Lasers
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SYSNO ASEP 0518367 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Nanoparticle and Solution Doping for Efficient Holmium Fiber Lasers Tvůrce(i) Kamrádek, Michal (URE-Y) RID
Kašík, Ivan (URE-Y) RID
Aubrecht, Jan (URE-Y) RID, ORCID
Mrázek, Jan (URE-Y) RID, ORCID
Podrazký, Ondřej (URE-Y) RID
Cajzl, Jakub (URE-Y)
Vařák, Petr (URE-Y) ORCID, RID
Kubeček, V. (CZ)
Peterka, Pavel (URE-Y) RID, ORCID
Honzátko, Pavel (URE-Y) RIDCelkový počet autorů 10 Číslo článku 7103610 Zdroj.dok. IEEE Photonics Journal. - : Institute of Electrical and Electronics Engineers - ISSN 1943-0655
Roč. 11, č. 5 (2019)Poč.str. 10 s. Forma vydání Tištěná - P Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova Fiber laser ; infrared fibers Vědní obor RIV BH - Optika, masery a lasery Obor OECD Optics (including laser optics and quantum optics) CEP GA17-20049S GA ČR - Grantová agentura ČR Způsob publikování Open access Institucionální podpora URE-Y - RVO:67985882 UT WOS 000487490800001 DOI https://doi.org/10.1109/JPHOT.2019.2940747 Anotace Efficient holmium fiber lasers have been studied as attractive laser sources operating around 2.1 mu m. We report on holmium-doped silica fibers prepared by the modified chemical vapor deposition in combination with either a solution-doping method or a nanoparticle-doping method. A set of 15 fibers with various compositions was characterized and compared with respect to their fluorescence lifetime, laser slope efficiency and laser threshold. This set of fibers in wide concentration ranges allowed us to assess reliably the influence of material composition and the influence of doping method. The best-performance fibers exhibited slope efficiency 83.1%, laser threshold 155 mW and a record value of upper laser level lifetime of 1.35 ms. These results were achieved in fibers with holmium concentration lower than 800 molar ppm and Al/Ho molar ratio greater than 70. Significant differences between fibers prepared by solution doping and nanoparticle doping were not observed. The behavior of Al2O3 nanoparticles during fiber preparation is discussed in details Pracoviště Ústav fotoniky a elektroniky Kontakt Petr Vacek, vacek@ufe.cz, Tel.: 266 773 413, 266 773 438, 266 773 488 Rok sběru 2020 Elektronická adresa https://ieeexplore.ieee.org/document/8831379
Počet záznamů: 1