title: Polarization-tunable Yb:KGW laser based on internal conical refraction.
abstract: 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.
authors.affiliation: Department of Applied Physics, KTH-Royal Institute of Technology, Sweden. jh@laserphysics.kth.se
authors.forename: Jonas
authors.initials: J
authors.lastname: Hellström
authors.forename: Hanna
authors.initials: H
authors.lastname: Henricsson
authors.forename: Valdas
authors.initials: V
authors.lastname: Pasiskevicius
authors.forename: Udo
authors.initials: U
authors.lastname: Bünting
authors.forename: Dirk
authors.initials: D
authors.lastname: Haussmann