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Andreas Tünnermann

Researcher at Fraunhofer Society

Publications -  1757
Citations -  48543

Andreas Tünnermann is an academic researcher from Fraunhofer Society. The author has contributed to research in topics: Fiber laser & Laser. The author has an hindex of 97, co-authored 1738 publications receiving 43757 citations. Previous affiliations of Andreas Tünnermann include Schiller International University & University of Jena.

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Xanthine: a promising organic material for the development of nanostructured anti-reflective layers

Anne Gärtner, +4 more
TL;DR: In this article, Xanthine is used as an organic material for the generation of self-assembling anti-reflective (AR) nanostructures with an adjustable effective low-refractive index (LRI) in the range of 1.07 to 1.25.
Proceedings ArticleDOI

Design of an active metal mirror for large space telescopes

Matthias Goy, +7 more
TL;DR: In this paper, an active metal mirror is designed for active optics in space, which is able to withstand quasi-static launch loads, is insensitive to temperature changes and can limit the overall weight to 2500 g including actuators and mirror mount.
Proceedings ArticleDOI

MCVD Based Fabrication of Low-NA Fibers for High Power Fiber Laser Application

Christian Hupel, +9 more
TL;DR: The fabrication of Yb doped fibers with low-NA (0.04) for high-power fiber laser applications in the multi-kW class is presented and discussed in this article.
Proceedings ArticleDOI

12 mJ and 1 kW ultrafast fiber-laser system using spatial and temporal coherent pulse addition

Marco Kienel, +4 more
TL;DR: In this paper, an ultrafast fiber-chirped-pulse-amplification system utilizing beam-and pulse-multiplexing was presented, achieving up to 1 kW average power and 1 mJ pulse energy at 700 W average power.
Proceedings ArticleDOI

Creation of Multicolor Images by Diffractive Optical Elements, Arranged in a Stacked Setup

Thomas Kämpfe, +2 more
TL;DR: In this paper, the combination of highly dispersive diffraction gratings with computer generated holograms (CGHs) and two CGHs working in the optical near field was proposed for multicolor image generation.