High-energy compact-size diode-pumped Nd:YAG laser with self-pumped phase-conjugate dynamic cavity

Compact-size, multiloop, self-phase-conjugated Nd:YAG laser pumped by 4D diode stacks was studied. The use of a passive LiF:F2-Q-switch resulted in pulse train oscillation depending on the passive Q-switch position and length of diffractive feedback in the cavity. The laser energy of up to 2.55 J in trains of 13 pulses with 11-ns duration was obtained.