Generation of High-Peak Power 532-nm Green Pulses from Composite, All-Ceramics, Passively Q-switched Nd:YAG/Cr~(4+):YAG Laser

摘要

Laser pulses at 1.06 μm with 2.5-mJ energy and 3.1-MW peak power have been obtained from a composite, all-poly-crystalline ceramics, passively Q-switched 1.1-at.％ Nd:YAG/Cr~(4+):YAG laser that was quasi-continuous-wave pumped with diode lasers. Single-pass frequency doubling with LiB_3O_5 nonlinear crystal at room temperature yielded green laser pulses at 532 nm with energy of 0.36-mJ and 0.45-MW peak power; the infrared-to-green conversion efficiency was 0.27.