Počet záznamů: 1
Silica and germanate-based rare-earth doped glasses for fiber lasers
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SYSNO ASEP 0503231 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název Silica and germanate-based rare-earth doped glasses for fiber lasers Tvůrce(i) Kamrádek, Michal (URE-Y)
Kašík, Ivan (URE-Y) RID
Peterka, Pavel (URE-Y) RID
Aubrecht, Jan (URE-Y) RID
Podrazký, Ondřej (URE-Y) RID
Honzátko, Pavel (URE-Y) RID
Mrázek, Jan (URE-Y) RID, ORCID
Kubeček, V. (CZ)Celkový počet autorů 8 Číslo článku 106832L Zdroj.dok. Fiber Lasers and Glass Photonics: Materials through Applications. - Bellingham : SPIE, 2018 / Taccheo S. ; Mackenzie J.I. ; Ferrari M. - ISSN 0277-786X - ISBN 978-151061892-3 Poč.str. 5 s. Forma vydání Tištěná - P Akce Conference on Fiber Lasers and Glass Photonics - Materials through Applications Datum konání 22.04.2018 - 26.04.2018 Místo konání Strasbourg Země FR - Francie Typ akce WRD Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova germanate-based glass ; mid-infrared spectral region ; Fiber lasers 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 Institucionální podpora URE-Y - RVO:67985882 UT WOS 000450857500052 EID SCOPUS 85049778831 DOI 10.1117/12.2306263 Anotace Since an extension of spectral region from near-infrared to mid-infrared covered by fiber lasers belongs to ambitions of today's research, germanate-based glasses have been proposed, fabricated and their optical properties studied. Glass samples were prepared by Modified Chemical Vapor Deposition method and by conventional glass melting processes. Fabricated preforms suitable for fiber drawing were optically characterized by refractive index and absorption spectra measurements. A limit of rare earths doping of GeO2-based glasses without phase separation was found comparable to SiO2-based glasses (thousands of ppm). Preforms prepared by Modified Chemical Vapor Deposition contained only up to 29 mol. % of GeO2 in core, although pure GeO2 glass layers were deposited. This effect caused transparency limitation of such materials to 2-2.5 mu m. Implementing of effective drying processes during GeO2-based glass conventional melting lead to decrease of residual OH- content to the level comparable with optical silica glass HOQ 310. The shift of infrared transmission edge of bulk GeO2-based conventionally prepared glasses to longer wavelengths towards to 5 mu m was observed. These facts support the idea of potential use of GeO2-based glass matrices for fiber lasers operating in mid-infrared region Pracoviště Ústav fotoniky a elektroniky Kontakt Petr Vacek, vacek@ufe.cz, Tel.: 266 773 413, 266 773 438, 266 773 488 Rok sběru 2019
Počet záznamů: 1