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Mid-infrared photoluminescence in small core fiber of praseodymium-ion doped selenide-based chalcogenide glass

Tang, Zhuoqi; Furniss, David; Fay, Michael; Sakr, Hesham; Sójka, Lukasz; Neate, Nigel; Weston, Nicola; Sujecki, Slawomir; Benson, Trevor M.; Seddon, Angela B.

Authors

Zhuoqi Tang

David Furniss

Hesham Sakr

Lukasz Sójka

Nigel Neate

Nicola Weston

Slawomir Sujecki

Trevor M. Benson

Angela B. Seddon



Abstract

Rare earth (RE)-ion doped chalcogenide glasses are attractive for mid-infrared (MIR) fiber lasers for operation >4 μm. Our prior modeling suggests that praseodymium (Pr) is a suitable RE-ion dopant for realizing a selenide-based, chalcogenide-glass, step index fiber (SIF) MIR fiber laser operating at 4-5 μm wavelength. Fabrication of RE-ion doped chalcogenide glass fiber, especially with a small core, is a demanding process because crystallization must be avoided during the heat treatments required to effect shaping. Here, a 500 ppmw (parts per million parts, by weight) Pr3+-doped Ge-As-Ga-Se glass SIF with a 10 μm or 15 μm diameter core is reported; the cladding glass is Ge-As-Ga-Se-S. The multistage process to produce the fiber is outlined. Thermal and optical properties of the core/clad. glass pair, and the crystalline/amorphous nature and optical behavior of the small core fiber are reported. MIR photoluminescence and lifetime of a RE-ion doped chalcogenide glass small core fiber are reported for the first time.

Journal Article Type Article
Publication Date Apr 1, 2015
Publisher Optical Society of America
Peer Reviewed Peer Reviewed
Volume 5
Issue 4
Pages 870-886
APA6 Citation Tang, Z., Furniss, D., Fay, M., Sakr, H., Sójka, L., Neate, N., …Seddon, A. B. (2015). Mid-infrared photoluminescence in small core fiber of praseodymium-ion doped selenide-based chalcogenide glass. Optical Materials Express, 5(4), 870-886. doi:10.1364/OME.5.000870
DOI https://doi.org/10.1364/OME.5.000870
Publisher URL https://www.osapublishing.org/ome/abstract.cfm?uri=ome-5-4-870
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