Diode-laser pumped Q-switched Nd3+-doped vanadate lasers at 0.91μm and intracavity frequency-doubling of 0.45μm blue light emissions are studied. Using a compact V-type laser cavity and a miniature acousto-optically (AO) Q-switch, the highest average output powers of 2.2W 0.912μm Nd:GdVO4 laser and 1.59W 0.914μm Nd:YVO4 laser are obtained at repetition rate of 10kHz, with the optical conversion efficiency of 7.4% and 5.3%, and the slope efficiency of 14.8% and 9.5%. Employing a BiBO crystal as frequency-doubler, 1.3W, 37ns 0.456μm and 0.84W, 37.4ns 0.457μm pulsed blue light are emitted at 10kHz, corresponding to the peak power of 3.51kW and 2.25kW, respectively. In addition, stable operation is up to 100kHz.
Read full abstract7-days of FREE Audio papers, translation & more with Prime
7-days of FREE Prime access