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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.

Papers
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Proceedings ArticleDOI

High power narrow-linewidth Raman amplifier and its limitation

Victor Distler, +6 more
TL;DR: In this paper, the authors investigated the limitations of output power generated by a high power narrow-linewidth Raman fiber amplifier, and identified cross-phase modulation (XPM) as a main reason for broadening the Raman light by using different pump sources.
Proceedings ArticleDOI

Structural and electrical properties of low temperature deposited ITO films

Kevin Füchsel, +5 more
TL;DR: In this article, a plasma ion-assisted evaporation process with substrate temperatures below 100°C and correlates structural and electrical properties of indium tin oxide with the process parameters.
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Estimation of the composition of coelectron-beam-evaporated thin-mixture films by making use of the Wiener bounds.

C. Franke, +5 more
- 20 Mar 2015 - 
TL;DR: These optical constants serve as a reliable input for a rather simple but robust evaluation procedure based on the concept of Wiener bounds and the consistency of the obtained results is illustrated by opposing the data to the elementary film composition estimated from energy-dispersive x-ray spectroscopy.
Proceedings Article

High repetition rate, high energy femtosecond fiber cpa system

Jens Limpert, +5 more
TL;DR: In this paper, a diode-pumped ytterbium-doped double-clad fiber based chirped pulse amplification system was used to generate 300-fs pulses with microjoule pulse energy at repetition rates in the range of 1 to 75 MHz.
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Highly sensitive mode mapping of whispering-gallery modes by scanning thermocouple-probe microscopy.

Angela E. Klein, +6 more
- 01 Mar 2014 - 
TL;DR: A method for mapping optical near-fields with the help of a thermocouple scanning-probe microscope tip that could potentially be employed for near-field imaging of a variety of systems in the near-infrared and visible spectral range.