Computational model of Q-switch Nd:YAlO3 dual-wavelength laser

A rate equation model with spatial hole-burning effect is built to calculate the Q-switch Nd:YAlO3(Nd:YAP) simultaneous dual wavelength laser. We find that 1341.4 and 1079.5 nm lasers can be simultaneously generated in a linear cavity by controlling the output coupling rates of the two coherent radiations. In contrast, a Y cavity and devices to control relative Q-switch delay were necessary for the dual wavelength Nd:YAG laser in previous work. Also with this model, some optimum parameters’ relationships to pump energy are investigated.