Power scale-up of the diode-pumped actively Q-switched Nd : YVO4 Raman laser with an undoped YVO4 crystal as a Raman shifter

Abstract

With an undoped YVO4 crystal as a Raman shifter, we substantially improved the reliability and the output performance of an actively Q-switched 1176-nm Nd:YVO4 Raman laser. With an incident pump power of 18.7 W, the average power is greater than 2.6 W at 80 kHz. The pulse width of the pulse envelope is shorter then 5 ns with mode-locked modulation. With an incident pump power of 12.7 W, the pulse energy and peak power is higher than 43 mu J and 14 kW at 40 kHz.