High-peak-power Nd:ScYSiO5 laser at 1355Â nm pumped by a pulsed laser diode

We reported a compact, high-peak-power Nd:ScYSiO5 (Nd:SYSO) laser at 1355 nm pumped by a pulsed laser diode (LD). At free running operation, a maximum output energy of 4.42 mJ was obtained with a repetition rate of 154 Hz, corresponding to an optical-to-optical efficiency of 14.7% and a slope efficiency of 17.9%. Employing V3+:YAG as a saturable absorber, a high-energy and high-peak-power 1355 nm Nd:SYSO laser was achieved. The largest output energy of pulse envelope reached as high as 1.64 mJ. The single pulse energy was up to 273 μJ with a shortest pulse width of 7 ns and a maximum peak power of 39 kW.