High power LD pumped solid-state laser and the second harmonic generation(SHG) of a Q-switched solid-state laser pumped with LD.

Abstract

Using a “multiple-facet end-pumped” (MFEP) structure, we efficiently obtained high power from an LD-pumped Nd: YAG laser, the maximum output power of 5.4W at a pumping power of 16W. With an end-pumped structure, the second harmonic generation of Q-Switched Nd: YAG and Nd: YLF lasers with KTP, BBO, and LBO crystals is also described. The maximum average power of 110mW was obtained for the second harmonics of an Nd: YLF laser in BBO at a pumping power of 840mW.