Znwo4/Nd:Yag Second-Order Raman Laser At 1318 Nm

In order to study the second-order Raman properties of ZnWO4 crystal, a second-order Raman laser based on ZnWO4 crystal is built, and the second-order Stokes laser output of 670 mW at 1318.3 nm with a repetition frequency of 9 kHz is realized. The corresponding pulse width is 3.294 ns, the optical-to-optical conversion efficiency is 4.7%, and the peak power is 22.6 kW. The experiment results show that the ZnWO4 crystal has good performance and can realize second-order Raman laser output.