Continuous-wave and passively Q-switched laser performance of a disordered Nd:GYSGG crystal

The performance of continuous wave (CW) and passively Q-switched Nd:GYSGG lasers was investigated for the first time. The CW output powers of 4.2 W with dual wavelength of 1058.4 nm and 1061.5 nm were obtained under the diode pump power of 17 W with slope efficiencies of 26%. By using Cr4+:YAG wafer as saturable absorber, Q-switching operation was performed and the short pulse with pulse width of 6.6 ns was obtained with the peak power of 9.97 kW.

► We reported the continuous-wave and passively Q-switched laser performance of a new disordered Nd:GYSGG crystal.
► 4.2 W with dual wavelength of 1058.4 nm and 1061.5 nm was obtained under the diode pump power of 17 W with slope efficiencies of 26%.
► The pulse width of 6.6 ns was obtained with the peak power of 9.97 kW.