title: 100-W single-frequency master-oscillator fiber power amplifier.
abstract: We report the efficient generation of 100-W single-frequency radiation with diffraction-limited beam quality at the 1064-nm wavelength by use of a master-oscillator fiber power-amplifier system, consisting of a diode-pumped monolithic nonplanar ring laser as the master oscillator and an Yb-doped large-mode-area fiber as the power amplifier. The emission spectrum, the intensity noise behavior, and further power-scaling possibilities to the >200-W level, which are determined by the threshold of stimulated Brillouin scattering in the fiber amplifier, are discussed.
authors.affiliation: Institute of Applied Physics, Friedrich-Schiller-University in Jena, Max-Wien-Platz 1, D-07743 Jena, Germany. Andreas.Liem@uni-jena.de
authors.forename: A
authors.initials: A
authors.lastname: Liem
authors.forename: J
authors.initials: J
authors.lastname: Limpert
authors.forename: H
authors.initials: H
authors.lastname: Zellmer
authors.forename: A
authors.initials: A
authors.lastname: Tünnermann