Pulsed laser operation of diffusion-doped Cr2+:ZnSe

Abstract The laser properties of Cr 2+ :ZnSe crystals obtained by diffusion doping method was investigated under pumping by the 1.6 μm output of a Nd:YAG laser-pumped Ba(NO 3 ) 2 Raman laser. A slope efficiency of 45%, a laser threshold of 12 μJ and round-trip passive losses of around 9% were measured for the best samples.