Polarization-tunable Yb:KGW laser based on internal conical refraction.
Using internal conical refraction, we demonstrate an Yb:KGW laser where the polarization state can be arbitrarily altered without any additional cavity components. The extinction ratio can also be altered between 1:1 and 40:1. The maximum output power achieved was 8.6 W at a slope efficiency of 60.5% with respect to incident pump power. This equals the power performance of a standard Yb:KGW laser used for reference.
Hellström
Jonas
J
Department of Applied Physics, KTH-Royal Institute of Technology, Sweden. jh@laserphysics.kth.se
Henricsson
Hanna
H
Pasiskevicius
Valdas
V
Bünting
Udo
U
Haussmann
Dirk
D