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Silica and germanate-based rare-earth doped glasses for fiber lasers

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F18%3A00503231" target="_blank" >RIV/67985882:_____/18:00503231 - isvavai.cz</a>

  • Alternative codes found

    RIV/68407700:21340/18:00339344

  • Result on the web

    <a href="http://dx.doi.org/10.1117/12.2306263" target="_blank" >http://dx.doi.org/10.1117/12.2306263</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1117/12.2306263" target="_blank" >10.1117/12.2306263</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Silica and germanate-based rare-earth doped glasses for fiber lasers

  • Original language description

    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

  • Czech name

  • Czech description

Classification

  • Type

    D - Article in proceedings

  • CEP classification

  • OECD FORD branch

    10306 - Optics (including laser optics and quantum optics)

Result continuities

  • Project

    <a href="/en/project/GA17-20049S" target="_blank" >GA17-20049S: Novel optical fibers and their spectroscopy for fiber lasers operating beyond 2 μm</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2018

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Article name in the collection

    Fiber Lasers and Glass Photonics: Materials through Applications

  • ISBN

    978-151061892-3

  • ISSN

    0277-786X

  • e-ISSN

  • Number of pages

    5

  • Pages from-to

  • Publisher name

    SPIE

  • Place of publication

    Bellingham

  • Event location

    Strasbourg

  • Event date

    Apr 22, 2018

  • Type of event by nationality

    WRD - Celosvětová akce

  • UT code for WoS article

    000450857500052