Multi-wavelength generation based on cascaded Raman scattering and self-frequency-doubling in KTA

作者:Zhong K*; Li J S; Xu D G; Ding X; Zhou R; Wen W Q; Li Z Y; Xu X Y; Wang P; Yao J Q
来源:Laser Physics, 2010, 20(4): 750-755.
DOI:10.1134/S1054660X10070418

摘要

A multi-wavelength laser is developed based on cascaded stimulated Raman scattering (SRS) and self-frequency-doubling in an x-cut KTA crystal pumped by an A-O Q-switched Nd:YAG laser. The generation of 1178 nm from cascaded SRS of 234 and 671 cm(-1) Raman modes is observed. The six wavelengths, including the fundamental 1064 nm, four Stokes waves at 1091, 1120, 1146, 1178 nm, and the second harmonic generation (SHG) of 1146 nm, are tens to hundreds of millwatts for each at 10 kHz, corresponding to a total conversion efficiency of 8.72%.