Abstract

Passively Q-switched mode-locking performance of Nd:GdTaO4 crystal using molybdenum disulfide (MoS2) as a saturable absorber at 1066 nm was demonstrated for the first time. The MoS2 saturable absorber was prepared simply by transferring the MoS2 suspension onto a quartz substrate. By inserting the MoS2 saturable absorber into the Nd:GdTaO4 laser, stable Q-switched modelocked operation can be achieved. At the pump power of 4 W, the maximum average output power of 0.156 W was obtained with the optical conversion efficiency of 3.9%.

© 2015 Optical Society of America

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