Passive Q-switched Nd:YAG single-frequency laser with tunable pulse shape and pulse duration

Abstract

The stable Nd:YAG laser with 12mJ@100Hz and M2<;1.2 was designed. RMS fluctuation of pulse energy was less than 1%. Pulse shape was set by unloads Cr4+:YAG polarizing output alignment. For pulse duration tuning the Cr4+:YAG orientation was used. The optical-to-optical efficiency of 14% was achieved.