Self-frequency-doubling Yb:GdCOB laser intracavity-pumped Pr:YAP laser

Abstract We present for the first time a Pr:YAlO 3 (Pr:YAP) laser emitting at 547 nm intracavity-pumped by a self-frequency-doubling Yb 3+ :Ca 4 GdO (BO 3 ) 3 (Yb:GdCOB) blue laser at 488 nm. We carried out a model to design the system properly, and the laser performance was experimentally investigated. Intracavity sum-frequency mixing at 547 and 488 nm was then realized in a CsLiB 6 O 10 (CLBO) nonlinear crystal to reach the ultraviolet laser at 258 nm. We obtained a continuous wave output power of 575 mW at 258 nm with a pump source, which is a diode-pumped quasi-three-level Sr 1- x La x - y Nd y Mg x Al 12- x O 19 (Nd:ASL) laser emitting 11.2 W at 902 nm.