A continuous-wave b-cut Tm, Ho:YAlO3 laser with a 15 W output pumped by two laser diodes

作者:Li L J*; Bai Y F; Duan X M; Qin J P; Wang J; He Z L; Zhou S; Zhang Z G
来源:Laser Physics Letters, 2013, 10(3): 035802.
DOI:10.1088/1612-2011/10/3/035802

摘要

A high power and efficiency b-cut Tm, Ho:YAlO3 (YAP) laser is reported in this letter. The laser operated in continuous-wave (CW) mode at 2.12 mu m. The Tm, Ho: YAP crystal was cooled at a temperature of 77 K and pumped by two fibre-coupled laser diodes with centre output wavelengths of 794.1 and 794.0 nm. A 15.0 W output power was obtained at a 155 mm physical cavity length with an optical-optical conversion efficiency of 39.2%, corresponding to a slope efficiency of 41.1%.