Two-photon absorption in SiO sub(2)- and (SiO sub(2) + GeO sub(2))-based fibres at a wavelength of 349 nm

The nonlinear two-photon light absorption coefficients have been measured in an optical fibre with a quartz glass (SiO sub(2)) core and in a fibre with a germanosilicate glass (SiO sub(2)+ GeO sub(2)) core. The two-photon absorption coefficient beta measured at a wavelength of 349 nm in the (SiO sub...

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Bibliographic Details
Published in:Quantum electronics (Woodbury, N.Y.) N.Y.), 2014-01, Vol.44 (6), p.599-601
Main Authors: Chunaev, D S, Karasik, A Ya
Format: Article
Language:English
Subjects:
Fibers
Fibres
Germanium oxides
Optical fibers
Quantum electronics
Silica glass
Silicon dioxide
Wavelengths
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Summary:The nonlinear two-photon light absorption coefficients have been measured in an optical fibre with a quartz glass (SiO sub(2)) core and in a fibre with a germanosilicate glass (SiO sub(2)+ GeO sub(2)) core. The two-photon absorption coefficient beta measured at a wavelength of 349 nm in the (SiO sub(2) + GeO sub(2))-based fibre (13.7 cm TW super(-1)) multiply exceeds that for the pure quartz glass optical fibre (0.54 cm TW super(-1)).
ISSN:1063-7818
1468-4799
DOI:10.1070/QE2014v044n06ABEH015408