Photoinduced phenomena in chalcogenide glasses doped with metals

In the present paper we have focus our study on relaxation of photodarkening in α-As2Se3 doped with Sn and rare-earth (RE) ions (Dy3+, Pr3+, Ho3+, Sm3+, Nd3+, Er3+). The relaxation process of photodarkening is described by a stretched exponential function with the dispersion parameter 0<αchalcogenide glasses doped with rare-earth ions as perspective materials for fibre optics amplifiers operating at the 1.3 μm and 1.5 μm telecommunication windows.© (2005) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.