2.41 W compact efficient CW blue light generation by intra-cavity frequency doubling of a compact Nd : YAG laser

摘要

We report on a laser diode end-pumped Nd:YAG blue laser using a three-mirror-folded cavity. Three different crystals cut for type-I critical phase matching are used for the intra-cavity frequency doubling of the laser: 10-mm-long LiB3O5 (LBO), 15-mm-long LBO, and 10-mm-long BiB3O6 (BIBO). Up to 2.41 W of continuous wave output power in the blue spectral range at 473 nm is achieved with BIBO crystal (1.89 W with LBO) at the incident pump power of 16 W, the light-to-light conversion efficiency is about 15.1%. (c) 2006 Elsevier Ltd. All rights reserved.