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

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>

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
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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)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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

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