A Diode-Side-Pumped Dynamic Fundamental Mode Nd:YAG Laser

A fundamental mode Nd:YAG laser is experimentally demonstrated with a stagger pumped laser module and a special resonator. The rod is pumped symmetrically by staggered bar modules. A dynamic fundamental mode is achieved with the special resonator under different pump levels. A maximal continuous wave output of 61W (M²=1.4) is achieved with a single rod. An average output of 47W, pulse width of 54ns, pulse energy of 4.7mJ and peak power of 87kW are obtained under the Q-switched operation of 10kHz.