[en] Laser radiation-induced photoconductivity of aluminium borosilicate glass with copper is studied and its relation with luminescent characteristics of HeCu⁺ ion is disclosed. It is shown that besides direct absorption the activator can be effectively excited at the expense of energy transmission from free carriers produced by UV radiation. Processes of antistokes luminescence excitation with participation of traps localized on defects are considered. A simple spectroscopic model of ion excitation in monovalent copper in aluminium borosilicate glass is suggested