Pulsed Nd:YAP laser at 1432nm pumped with high power laser diode

LD end pumped Nd:YAP laser operation in the eye safe spectrum region at 1432nm is reported. With pump energy of 256mJ, maximum linearly polarized output of 26mJ is obtained. The optical-to-optical overall efficiency is around 10%, and the slope efficiency is around 18%. The laser beam operates with spiking mode with a total emission period of less than 300µs at 10Hz. The stimulated emission cross section is estimated at around 0.85×10−20cm2.