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Absorption and photoluminescence of Ga0.017Ge0.25As0.083S0.65 glasses doped with Pr3+, Sm3+ and Ho3+

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3 Author(s)
Iovu, M.S. ; Inst. of Appl. Phys., Acad. of Sci. of Moldova, Chisinau, Moldova ; Lupan, E.V. ; Ciornea, V.I.

The visible luminescence from Pr3+, Dy3+, Nd3+, Sm3+ and codoped with Ho3+ and Dy3+ ions embedded in Ga0.017Ge0.25As0.083S0.65 glass hosts at room temperature and at T=10 K is reported, when pumping with an Ar+-ion laser at lambda=488 nm. Fluorescence emissions at 1.3 mum was observed for Dy3+ and both at 1.3 and at 1.5 mum for Pr3+ doped glasses with wavelength pumping at 950 nm. Energy transfer from Ho3+:5F3 level to Dy3+:4F9/2 level increase the visible emission efficiency at 650 nm in the codoped glasses. The investigated Ga0.017Ge0.25As0.083S0.65 glasses doped with Pr3+ are promising amplifier materials for 1.3 and 1.5 mum fiber optic telecommunication windows.

Published in:

Semiconductor Conference, 2009. CAS 2009. International  (Volume:2 )

Date of Conference:

12-14 Oct. 2009