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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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Journal ArticleDOI
Spatial light rectification in an optical waveguide lattice
Felix Dreisow,Yaroslav V. Kartashov,Yaroslav V. Kartashov,Matthias Heinrich,Victor A. Vysloukh,Andreas Tünnermann,Stefan Nolte,Lluis Torner,Stefano Longhi,Alexander Szameit +9 more
TL;DR: In this article, a photonic mesh lattice consisting of sequences of directional couplers is used to observe light propagation at an angle that is independent of the input direction of the injected beam.
Journal ArticleDOI
Transverse single-mode operation in a passive large pitch fiber with more than 200 μm mode-field diameter.
Albrecht Steinkopff,Cesar Jauregui,Fabian Stutzki,Johannes Nold,Christian Hupel,Nicoletta Haarlammert,Joerg Bierlich,Andreas Tünnermann,Jens Limpert +8 more
TL;DR: This Letter achieves stable single-transverse mode transmission at a wavelength of 1.03 μm through a straight passive LPF with a pitch of 140 μm, resulting in a measured mode-field diameter of 205 μm.
Journal ArticleDOI
Anderson localization in a periodic photonic lattice with a disordered boundary
Uta Naether,Julia Meyer,Simon Stützer,Andreas Tünnermann,Stefan Nolte,Mario I. Molina,Alexander Szameit +6 more
TL;DR: For a completely localized initial condition away from the surface, it is found that the disordered boundary induces an asymptotic localization in the bulk, centered around the initial position of the input beam.
Proceedings ArticleDOI
Fabrication and evaluation of a 500 W cladding-light stripper
A. Kliner,Kai-Chung Hou,Marco Plötner,Ch. Hupel,Th. Stelzner,Thomas Schreiber,Ramona Eberhardt,Andreas Tünnermann +7 more
TL;DR: In this paper, the angle dependency of stripping efficiency on the length of the etched area and the etching time was investigated for a CLS without polymers, based on an etching process.
Journal ArticleDOI
High stability soliton frequency-shifting mechanisms for laser synchronization applications
Jan Rothhardt,Alexander M. Heidt,Steffen Hädrich,Stefan Demmler,Jens Limpert,Andreas Tünnermann +5 more
TL;DR: In this paper, the frequency-shifting mechanism in photonic crystal fibers (PCFs) was analyzed and a fiber with a higher zero dispersion wavelength was pumped in the positive group velocity dispersion (GVD) region of PCFs.