Abstract
Build a diode laser end-pumped Nd:YVO4/KTP solid laser system, Nd:YVO4 crystal was used as the solid laser medium, it emitting 1064nm infrad laser when it was pumped by 808nm diode laser, then the 1064nm infrad laser was changed to 532nm green laser by frequency doubling with a KTP crystal inside the optical cavity. Based on experiment, the relationship between diode laser power output and diode laser injection current, the relationship between laser pump power and 532nm green laser output, and the other factors possibly affecting 532nm laser output which include KTP phase match angle, pump light focus position and all-solid-state-laser (ASSL) cavity length was also studied. The experimental results show that to increase the output of 532nm green light needs to improve the pump diode laser power, shorten the length of the solid laser cavity , focus the pump laser to the middle of the Nd:YVO4 crystal, and choose correct KTP crystal phase-matching angle.
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