ISSN 0862-5468 (Print), ISSN 1804-5847 (online) 

Ceramics-Silikáty 64, (1) 29 - 34 (2020)

Kasik Ivan, Matejec Vlastimil, Hayer Milos, Kamradek Michal, Podrazky Ondrej, Mrazek Jan, Peterka Pavel, Honzatko Pavel
Institute of Photonics and Electronics, Czech Academy of Sciences, Chaberská 1014/57, 182 51 Prague, Czech Republic

Keywords: Optical fibers, Silica glass, MCVD, Fiber lasers

Optical fibers represent the key component of modern optical telecommunication networks. Such fibers are based on silica glass of high purity usually modified with several percent of glassforming oxides such as GeO₂ and P₂O₅. These materials with minimum optical losses around 1.5 μm are transparent up to ∼2 μm. In this paper, the attention is focused on silica glass materials doped with ions of rare-earth elemens for fiber lasers and fiber amplifiers. Since rare earths cause phase separation only in small amount incorporated into silica glass, ternary systems containing P₂O₅ or Al₂O₃ have been investigated. Latest results in GeO₂-based glasses transparent in mid infrared region are also presented.

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doi: 10.13168/cs.2019.0045
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