Quantitative data on photoinduced light-scattering anisotropy and its
reorientation in bulk As2S3 glass are presented together with data on
transmittance anisotropy. The photoinduced rotation of the polarizatio
n plane and photoinduced ellipticity for scattered light and also the
fatigue of anisotropy reorientation are shown: It is concluded that th
e generation of scattering centers is the process which determines the
whole group of photoinduced vectoral phenomena in chalcogenide glasse
s.