title: Thermo-optical properties of air-clad photonic crystal fiber lasers in high power operation.
abstract: We report on the investigation of the thermo-optical behavior of air-clad ytterbium-doped large-mode-area photonic crystal fiber lasers. Analytical and numerical models are applied to calculate the heat distribution and induced stresses in a microstructured fiber. The results are compared to conventional double-clad fiber lasers and design guidelines are provided to ensure maximum heat dissipation and scalability to power levels of several kWs.
authors.forename: J
authors.initials: J
authors.lastname: Limpert
authors.forename: T
authors.initials: T
authors.lastname: Schreiber
authors.forename: A
authors.initials: A
authors.lastname: Liem
authors.forename: S
authors.initials: S
authors.lastname: Nolte
authors.forename: H
authors.initials: H
authors.lastname: Zellmer
authors.forename: T
authors.initials: T
authors.lastname: Peschel
authors.forename: V
authors.initials: V
authors.lastname: Guyenot
authors.forename: A
authors.initials: A
authors.lastname: Tünnermann