Single-Pass Multi-Watt Second-Harmonic-Generation in Congruent and Stoichiometric LiTaO3

We present a comparison of an efficient, single-pass second-harmonic-generation (SHG) of a continuous-wave Yb-fiber laser using a 1) congruently grown LiTaO3 crystal and 2) stoichiometrically grown LiTaO3 crystal. Using a Yb-fiber laser pump source delivering a single-frequency output of 40 W at 1064 nm, we have generated ~ 8.5 and 14.5 W of single… CONTINUE READING