title: Output-coupling-dependent laser operation of monoclinic Yb:Ca4LaO(BO3)3 crystal.
abstract: We have studied the laser operation of Yb:LaCOB crystal for what we believe is the first time. Adopting a plane-concave cavity, the laser properties were measured for the X-cut, Y-cut, and Z-cut crystals. The best output power of 3.2 W was obtained with a slope efficiency 69.90% by employing the Y-cut crystal. A more efficient operation with slope efficiency of 82.31% was realized for the X-cut crystal, with the output power of 2.0 W. The laser spectra were collected under the absorbed pump power of 3.9 W for X cut and Z cut and 6.7 W for Y cut. The emission wavelengths were dependent of the transmittance of output couplers.
authors.affiliation: Key Laboratory of Photoelectric Materials Chemistry and Physics of CAS, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.
authors.forename: Yuexia
authors.initials: Y
authors.lastname: Ji
authors.forename: Jiafeng
authors.initials: J
authors.lastname: Cao
authors.forename: Jinlong
authors.initials: J
authors.lastname: Xu
authors.forename: Zhenyu
authors.initials: Z
authors.lastname: You
authors.forename: Chaoyang
authors.initials: C
authors.lastname: Tu