Power scaling and optimum crystal orientation in continuous-wave diode-pumped Yb:KLu (WO4)2 lasers

Junhai Liu; Valentin Petrov; Xavier Mateos; Huaijin Zhang; Jiyang Wang

doi:10.1117/12.761014

14 February 2008 Power scaling and optimum crystal orientation in continuous-wave diode-pumped Yb:KLu(WO₄)₂ lasers

Junhai Liu, Valentin Petrov, Xavier Mateos, Huaijin Zhang, Jiyang Wang

Proceedings Volume 6871, Solid State Lasers XVII: Technology and Devices; 68712F (2008) https://doi.org/10.1117/12.761014
Event: Lasers and Applications in Science and Engineering, 2008, San Jose, California, United States

Abstract

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 N_p or N_m principal optical axes. A maximum output power of 11.0 W was produced from a 2 mm thick uncoated crystal with N_g-cut, the corresponding optical-to-optical efficiency was 68%.

Citation Download Citation

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); https://doi.org/10.1117/12.761014

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available