HIGH POWER 1.3414μm Nd:YAP CW LASER

The eigen oscillation mode of Nd: YAP cw laser has been analyzed. The influence of thermal effects arising from tho pumping procass on the output character of 1.3414 μm Nd: YAP cw laser has been discussed. The crack problem of reflective film at 1.34 μm dielectric mirror has been solved. Based on the aforementioned work, we have been able to achieve 82.8 W laser output at 1.3414 μm with nearly polarized beam from a φ5.8 mm×111 mm Nd: YAP rod. The overall efficiency and the slope efficiency are 1.15% and 2.02%, respectively. The fluctuation of the output power at 62 W is less than 1% during a continuous operation for 45 min.