20-ps passively mode-locked Nd:MgO:LiNbO3 laser with intracavity-loss-dependent dynamics
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Published on: November 22, 2019
Xiaotian Lei1, Mingrui Wang1, Hang Liu1
1Jilin Key Laboratory of Solid Laser Technology and Application, School of Physics, Changchun University of Science and Technology, Changchun 130022, China.
Abstract:
We report a passively mode-locked picosecond Nd:MgO:LiNbO3 laser. The influence of intracavity loss on mode-locking evolution is investigated through numerical simulations and experiments, with the output-coupler transmittance varied as the loss-control parameter. By utilizing an output coupler with a transmittance of 4%, π-polarized picosecond pulses centered at 1084.6 nm are obtained with a pulse duration of 20.7 ps, an average output power of 0.67 W, and a repetition rate of 60.24 MHz. For subsequent mid-infrared self-frequency conversion processes, this work delivers π-polarized 1084 nm picosecond fundamental light and provides theoretical guidance for intracavity-loss control.
