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Emission properties of erbium-doped Ge-Ga-Se glasses, thin films and waveguides for laser amplifiers

Yan, Kunlun; Vu, Khu; Yang, Zhiyong; Wang, Rongping; Debbarma, Sukanta; Luther-Davies, Barry; Madden, Steve


We report, for the first time, Er-doped Ge-Ga-Se films and waveguides deposited using co-thermal evaporation and patterned with plasma etching. The emission properties of the bulk glasses were studied as a function of Erbium doping, showing for the first time that there is a clear concentration quenching effect in the Ge-Ga-Se glasses with a linear radiative lifetime degradation slope of −0.48 ms/mol% Er from a low concentration lifetime of 1.7 ms, even when sufficient Gallium is present to...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
Source: Optical Materials Express
DOI: 10.1364/OME.4.000464


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