Laser-Diode Pumped Nd:YAG Lasers

摘要

Laser-diode pumped Nd: YAG lasers areexpected to be applied to laser processing fields such aswelding, cutting, drilling, and marking due to their potentialfor high efficiency and compactness.We are designing and developing laser-diode pumpedNd :YAG lasers using numerical analysis simulationtechniques such as ray tracing and thermal analysis. Wehave succeeded in achieving a laser power of more than 3kW with 20% efficiency, which is the best ever obtained.In addition, we have developed a laser-diode pumped greenlaser by second harmonic generation, for precision machining on silicon wafers.