Zobrazeno 1 - 10
of 136
pro vyhledávání: '"Sonja Unger"'
Autor:
Martin Leich, Robert Müller, Sonja Unger, Anka Schwuchow, Jan Dellith, Adrian Lorenz, Jens Kobelke, Matthias Jäger
Publikováno v:
Optical Materials: X, Vol 15, Iss , Pp 100179- (2022)
The hybrid approach of combining a Tm:YAG laser crystal with an amorphous fused silica tube is investigated to evaluate the suitability of the resulting crystal-derived fibers for efficient double-clad fiber lasers. The fabrication process and fiber
Externí odkaz:
https://doaj.org/article/996e4adb1fa54c0da48ce497b6923505
Autor:
Jens Kobelke, Kay Schuster, Jorg Bierlich, Sonja Unger, Anka Schwuchow, Tino Elsmann, Jan Dellith, Claudia Aichele, Ron Fatobene Ando, Hartmut Bartelt
Publikováno v:
Advances in Electrical and Electronic Engineering, Vol 15, Iss 1, Pp 101-106 (2017)
We report on germania and alumina dopant profile shift effects at preparation of compact optical fibers using packaging methods (Stack-and-Draw method, Rod-in-Tube (RiT) technique). The sintering of package hollow volume by viscous flow results in a
Externí odkaz:
https://doaj.org/article/941f998d083347a0887d7eb68eb7eebc
Autor:
Martin Leich, Robert Müller, Sonja Unger, Anka Schwuchow, Jan Dellith, Jens Kobelke, Adrian Lorenz, Matthias Jäger
Publikováno v:
Fiber Lasers XX: Technology and Systems.
Autor:
Martin Leich, Robert Müller, Sonja Unger, Anka Schwuchow, Jan Dellith, Adrian Lorenz, Jens Kobelke, Matthias Jäger
Publikováno v:
Optical Materials: X. 15:100179
Autor:
Dipl. Psych. Sonja Unger
Es ist unbestritten, dass alltägliche Schwierigkeiten des Lebens, wie Konflikte mit unseren Partnern, Probleme bei der Arbeit oder Streitigkeiten mit Freundinnen, unangenehme Gefühle und eine schwierige Zeit auslösen können. Unsere mentale Gesund
Autor:
Jens Kobelke, Friedrich Möller, Jörg Bierlich, Volker Reichel, Thomas Schreiber, Anka Schwuchow, Martin Leich, Nicoletta Haarlammert, Victor Distler, Sonja Unger, Andreas Tünnermann, Johannes Nold, Tina Eschrich, Till Walbaum, Katrin Wondraczek
In this paper we present numerical and experimental results revealing that the mode instability threshold of highly Yb-doped, Ce/Al co-doped pedestal fibers is affected by the size of the index-increased pedestal structure surrounding the core. An al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08b45ef9e8bb7aa82e00ec0dbd5396d1
https://publica.fraunhofer.de/handle/publica/264888
https://publica.fraunhofer.de/handle/publica/264888
Autor:
Katrin Wondraczek, Manfred Rothhardt, Olugbenga Olusoji, Claudia Aichele, Florian Lindner, Martin Becker, Anka Schwuchow, Tino Elsmann, Johannes Nold, Sonja Unger
The photosensitivity of various cerium-doped fibers has been experimentally investigated for both excimer- and femtosecond-laser illumination. The results of single-pulse, few-pulse and multi-pulse inscription of fiber-Bragg-gratings with both laser
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c172e968789d0e268d4c6218f4afcf8c
https://publica.fraunhofer.de/handle/publica/258311
https://publica.fraunhofer.de/handle/publica/258311
Publikováno v:
Optical Materials Express. 10:907
Several series of preform and fiber samples of Yb2O3-Al2O3-SiO2 glass with finely-graded composition steps were prepared by MCVD and solution doping under well-defined conditions using both oxidizing and reducing atmospheres during preform collapse.
Publikováno v:
ICTON
Photodarkening in rare-earth doped fibers has been subject of intense research over the last decade as the main issue limiting high power performance and long-term stability of fiber lasers.Regarding our previous and most recent experiments on Yb-dop
The viscous behavior of fluorine-doped synthetic silica is studied using collapsing experiments with different fluorine-doped tubes on a modified chemical vapor deposition (MCVD) lathe. The principles, techniques, and evaluations of this method are t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0a70f471601d7c3b354417acae1dba8