A Ce :LiCAF UV laser pumped by an intracavity frequency-doubled radiation at 532 nm

摘要

We examine here the lasing conditions of a Ce :LiCAF laser crystal placed intracavity with a BBO nonlinear crystal and pumped longitudinally throughout an input dichroic mirror by the 532 nm radiation of a frequency-doubled diode-pumped Nd :YAG laser. The comparison with the results obtained with an off-axis configuration shows lower laser slope efficiencies but similar laser performance in terms of threshold absorbed pump fluences (around 200 mJ/cm~2). A model based on revisited spectroscopic parameters is developed to account for these laser performance.