Andrey P. Zinov'ev

Pulse repetitive Nd:YAG laser with distributed feedback by self-induced population grating

We present a self-starting Nd:YAG laser-oscillator with a cavity formed by refractive index grating caused by population grating induced in the laser crystal by the generating beams themselves. Different configurations of the cavity (linear, loop and multi-loop) have been investigated. The laser-oscillator with a nonlinear mirror displays self-adaptivity to strong thermally induced intracavity distortions. Generation of single transverse mode beams with diffraction quality in the millisecond pulse-repetitive regime with 12 W average power has been achieved.

Beam structure of a diode-side-pumped Nd:YVO4 slab laser

The beam spatial structure of a diode-side-pumped Nd:YVO4 slab laser with grazing-incidence bounce geometry is studied. It is found how the mode structure changes with changing the cavity parameters in the cw and active Q-switching regimes. The parameters that allow one to improve the output beam quality retaining high output laser power are found.