Title :
Spectroscopy of mid-infrared (4.8µm) photoluminescence in Tb3+ doped chalcogenide glass and fibre
Author :
Sojka, L. ; Tang, Z. ; Sakr, H. ; Furniss, D. ; Benson, T.M. ; Seddon, A.B. ; Barney, E. ; Beres-Pawlik, E. ; Sujecki, S.
Author_Institution :
Mid-infrared Photonics Group, Univ. of Nottingham, Nottingham, UK
Abstract :
We present a study of mid-infrared photoluminescence emitted from Tb3+:GeAsGaSe chalcogenide bulk glass and fibre. Absorption and emission cross-sections were calculated based on measured results. The decay characteristic related to the potential laser transition 7F5 → 7F6 has been measured and investigated. The observed high values of emission and absorption cross-sections and long lifetime from the level 7F5 → 7F6 indicate that this glass is a good candidate for future development of a mid-infrared fibre laser.
Keywords :
chalcogenide glasses; fibre lasers; terbium; GeAsGaSe:Tb3+; chalcogenide fibre; chalcogenide glass; emission cross-sections; mid-infrared fibre laser; mid-infrared photoluminescence; size 4.8 mum; spectroscopy; Absorption; Glass; Manifolds; Optical fibers; Phonons; Photoluminescence; chalcogenide glasses; mid-infrared fibre lasers;
Conference_Titel :
Transparent Optical Networks (ICTON), 2015 17th International Conference on
Conference_Location :
Budapest
DOI :
10.1109/ICTON.2015.7193669
