title: Single-mode monolithic fiber laser with 200  W output power at a wavelength of 1018  nm.
abstract: We report on an ytterbium-doped monolithic fiber laser at a wavelength of 1018 nm with an output power of 200 W in continuous wave operation. The optimal parameters for setting up such a high-power fiber laser with an ytterbium-doped fiber are investigated and discussed in detail. An in-house-developed pump light stripper and a single-mode fused fiber coupler were applied to use the fiber laser for core-pumping of ytterbium-doped high-power fiber amplifiers in a monolithic setup.
authors.forename: Christoph
authors.initials: C
authors.lastname: Ottenhues
authors.forename: Thomas
authors.initials: T
authors.lastname: Theeg
authors.forename: Katharina
authors.initials: K
authors.lastname: Hausmann
authors.forename: Mateusz
authors.initials: M
authors.lastname: Wysmolek
authors.forename: Hakan
authors.initials: H
authors.lastname: Sayinc
authors.forename: Jörg
authors.initials: J
authors.lastname: Neumann
authors.forename: Dietmar
authors.initials: D
authors.lastname: Kracht