Core-clad terbium doped chalcogenide glass fiber with laser action at 5.38 μm

V.S. Shiryaev,M.V. Sukhanov,A.P. Velmuzhov,E.V. Karaksina,T.V. Kotereva,G.E. Snopatin,B.I. Denker,B.I. Galagan,S.E. Sverchkov,V.V. Koltashev,V.G. Plotnichenko

Journal of Non-Crystalline Solids（2021）

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Abstract

•The core-clad Tb(3+)-doped Ga-Ge-As-Se/Ge-As-S chalcogenide glass fiber is fabricated.•The high-purity 1050 ppmw Tb(3+)-doped core Ga3.2Ge24.9As15.3Se56.6 glass was prepared.•The content of limiting hydrogen impurities in the doped glass was not more than 1 ppm(at).•For the first time, the mid-IR laser action in the prepared Tb(3+)-doped chalcogenide fiber was achieved.

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Key words

Tb3+-doped Ga-Ge-As-Se glass,Core-clad fiber,Optical losses,mid-IR luminescence,mid-IR fiber laser

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