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1 Bulletin of the Polish Academy of Sciences. Technical Sciences

1 2014

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Active glasses as the luminescent sources of radiation for sensor applications

Żmojda J., Dorosz D., Kochanowicz M., Dorosz J.

Bulletin of the Polish Academy of Sciences. Technical Sciences

2014

Vol. 62, nr 2

393--397

The article presents physicochemical, thermal and spectroscopic properties of two different glass systems: TeO2-GeO2-PbO-PbF2- BaO-Nb2O5-LaF3 and SiO2-Al2O3-Sb2O3, co-doped with Yb3+/Tm3+ ions. Blue upconversion luminescence at a wavelength of 478 nm corresponding to the thulium 1G4 ⇥3H6 transition was observed under 976 nm pump radiation in both of the co-doped glasses. This indicated the existence of efficient Yb3+ ⇥ Tm3+ energy transfer via three-photon absorption mechanism. Thermal and optical results substantiate the claim for practical applicability of the manufactured glasses in design of optical fiber sources.