14 February 2008 Power scaling and optimum crystal orientation in continuous-wave diode-pumped Yb:KLu(WO4)2 lasers
Author Affiliations +
Monoclinic potassium double tungstates are biaxial laser materials characterized by strong anisotropy of the spectroscopic properties. KLu(WO4)2 is the most attractive of them in the case of Yb-doping because of the close ionic radii of Yb and Lu. In this work we compare crystals of equal dimensions and doping level but different cuts, under the same pumping conditions. Special emphasis is placed on the polarization behavior. We present substantial power scaling with KLu(WO4)2 in the continuous-wave regime by longitudinal fiber-coupled diode laser pumping. Slope efficiency of roughly 80% is achieved while the naturally selected laser polarization is parallel either to the Np or Nm principal optical axes. A maximum output power of 11.0 W was produced from a 2 mm thick uncoated crystal with Ng-cut, the corresponding optical-to-optical efficiency was 68%.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Junhai Liu, Valentin Petrov, Xavier Mateos, Huaijin Zhang, and Jiyang Wang "Power scaling and optimum crystal orientation in continuous-wave diode-pumped Yb:KLu(WO4)2 lasers", Proc. SPIE 6871, Solid State Lasers XVII: Technology and Devices, 68712F (14 February 2008); doi: 10.1117/12.761014; https://doi.org/10.1117/12.761014


Passively Q-switched Tm:BaY2F8 lasers
Proceedings of SPIE (July 08 2013)
Highly-efficient multi-watt Yb:CaLnAlO4 microchip lasers
Proceedings of SPIE (February 16 2017)
Continuous-wave diode-pumped Yb:LuVO4 lasers
Proceedings of SPIE (February 19 2007)
Continuous-wave diode-pumped Yb3+: LYSO tunable laser
Proceedings of SPIE (January 28 2007)

Back to Top