Near infrared emission for erbium-doped calcium aluminum silicate glass

In this work, erbium-doped calcium aluminum silicate (CAS) glass has been s ynthesized by solid-state reaction. Intense emission at 1534 nm, correspond ing to the I-4(13/2) --> I-4(15/2) transition of the Er3+ ion, was observed upon both 488 nm Ar+ laser and 978 mn diode laser excitations at room temp erature. The luminescence mechanisms in the glass are discussed. These resu lts indicate this glass is a promising laser material with its high chemica l durability and thermal stability. (C) 2001 Elsevier Science B.V. All righ ts reserved.