The Russian coaxially pumped Nd: glass amplifier head is introduced. The amplifier has a compact head and a glass rod is easily exchanged which is illuminated by high intensity radiation from the Xe flashlamp. In normal operation, an output energy of 37 J and an absolute efficiency of 2.4% have been obtained at 1.58 kJ pumping. The laser head has provided the homogeneous gain distribution and small signal gain equal to 3.6-4.2 at the pumping energy of 1.35 kJ.