48 / 2016-10-11 09:33:45

A 9.8-W, a-cut Tm,Ho:YAP Laser Pumped by Two Laser Diodes

11474,11473,11472,11471

A 9.8 W, continuous wave (CW) operation of a a-cut Tm,Ho:YAlO3 (Tm,Ho:YAP) laser at 2119.2 nm is reported in this paper. The Tm,Ho:YAP crystal, which was cooled at the temperature of 77 K, was double end-pumped by two 14.0- W fiber-coupled laser diodes at 793.5 nm. An optical-optical conversion efficiency of 35% was acquired, corresponding to a slope efficiency of 37.8%.