Spectroscopic study of neodymium doped potassium lead bromide for mid-infrared solid state lasers

► Nd doped KPb2Br5 crystal was grown by the horizontal Bridgman technique. ► Observed broad emission at 5.25 μm with a long lifetime of 43 ms at room temperature. ► Some comparative results on Nd:KPb2Cl5 were also studied. ► The mid-infrared laser potential and other laser relevant parameters were discussed.