Passively Q-Switched Yb:Lu0.74Y0.23La0.01VO4 Laser Based on MoTe2 Saturable Absorber

This is the authors' abstract. We don't add key points for this paper.

A passively-Q-switched Yb:Lu1-x-yYxLayVO4laser based on a two-dimension (2D) molybdenum ditelluride (MoTe2) saturable absorber (SA) is reported for the first time to the best of our knowledge. High quality few layered 2D MoTe2nanosheets were fabricated by liquid phase exfoliation (LPE) method and used as the SA, whose saturable absorption properties around 1.0 μm were characterized with a saturation fluence of 3.02 μJ/cm2and a modulation depth of 8.3%. In the passively Q-switched laser operation, the shortest pulse width of 500 ns was obtained with an average output power of 0.33 W at a pulse repetition rate of 117 kHz, corresponding to the maximum single pulse energy of 2.8 μJ and the peak power of 5.6 W.