title: Highly polarized photonic crystal fiber laser.
abstract: We report on the design of a polarization maintaining, double-clad, Yb doped photonic crystal fiber and demonstrate its lasing properties. The polarizing properties of the fiber rely on birefringence and differential loss introduced by an anisotropic hole structure. Due to a slight leak from the core to the inner cladding only ~80% of the output light is in the core mode. We have demonstrated 2.9W of output in this mode with a polarization ratio in excess of 200:1.
authors.forename: Fiona
authors.initials: F
authors.lastname: McNeillie
authors.forename: Erling
authors.initials: E
authors.lastname: Riis
authors.forename: Jes
authors.initials: J
authors.lastname: Broeng
authors.forename: Jacob
authors.initials: J
authors.lastname: Folkenberg
authors.forename: Anders
authors.initials: A
authors.lastname: Petersson
authors.forename: Harald
authors.initials: H
authors.lastname: Simonsen
authors.forename: Christian
authors.initials: C
authors.lastname: Jacobsen