LD-side-pumped Nd:YAG/BaWO4 intracavity Raman laser for anti-Stokes generation

A diode-side-pumped actively Q-switched Nd:YAG/BaWO4 intracavity anti-Stokes Raman laser is demonstrated for the first time. The oscillation directions of the fundamental and the Stokes beams are separated at a phase-matching angle by introducing an additional coupled Raman cavity in the fundamental resonator. The highest 968 nm anti-Stokes output power of 0.94 mW is obtained with a 170 W 808 nm pumping power and a 7.5 kHz pulse repetition frequency. Meanwhile, the Stokes power obtained is 4.2 W.