Jan Aubrecht
Academy of Sciences of the Czech Republic
103 Papers
172 Citations
Jan Aubrecht is an academic researcher from Academy of Sciences of the Czech Republic. The author has contributed to research in topics: Fiber laser & Optical fiber. The author has an hindex of 11, co-authored 72 publications. Previous affiliations of Jan Aubrecht include Czech Technical University in Prague.
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Papers
Nanoparticle and Solution Doping for Efficient Holmium Fiber Lasers
Michal Kamrádek,Pavel Honzatko,Ivan Kašík,Jan Aubrecht,Jan Mrázek,Ondrej Podrazky,Jakub Cajzl,Petr Varak,Václav Kubeček,Pavel Peterka +9 more
TL;DR: In this paper, a set of 15 fibers with various compositions was characterized and compared with respect to their fluorescence lifetime, laser slope efficiency and laser threshold, and the best performance fibers exhibited slope efficiency 83.1%, laser threshold 155 mW and a record value of upper laser level lifetime of 1.35 ms.
Active Optical Fibers and Components for Fiber Lasers Emitting in the 2-μm Spectral Range.
Filip Todorov,Jan Aubrecht,Pavel Peterka,Ondřej Schreiber,Ondřej Schreiber,Ali Abdulhadi Jasim,Jan Mrázek,Ondřej Podrazký,Michal Kamrádek,Nithyanandan Kanagaraj,Nithyanandan Kanagaraj,Martin Grábner,Yauhen Baravets,Jakub Cajzl,Pavel Koška,Adam Fišar,Ivan Kašík,Pavel Honzatko +17 more
TL;DR: The first results of improvement of pump absorption in double-clad fibers thanks to the fiber twist frozen during drawing are presented and a brief demonstration of material processing by thulium all-fiber laser operating at 2 µm is presented.
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Enhanced pump absorption efficiency in coiled and twisted double-clad thulium-doped fibers.
Pavel Koška,Pavel Peterka,Jan Aubrecht,Ondřej Podrazký,Filip Todorov,Martin Becker,Yauhen Baravets,Pavel Honzatko,Ivan Kašík +8 more
TL;DR: Improvement of fiber laser performance was proved and the peak absorption of 3-m long hexagonal thulium-doped fiber was increased by 8 dB by its simultaneous coiling and twisting.
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Luminescence and laser properties of RE-doped silica optical fibers: The role of composition, fabrication processing, and inter-ionic energy transfers
Petr Varak,Michal Kamrádek,Jan Mrázek,Ondřej Podrazký,Jan Aubrecht,Pavel Peterka,Pavla Nekvindova,Ivan Kašík +7 more
TL;DR: In this paper , the authors summarize the basic concepts and recent developments in the role of various co-dopants of rare earth ions, the fabrication processes used in the making of high-silica fibers and the inter-ionic energy-transfers, with respect to their influence on the luminescence and laser properties of the fibers.
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Self-swept erbium fiber laser around 1.56 μm
Petr Navratil,Petr Navratil,Pavel Peterka,Petr Vojtíšek,Ivan Kašík,Jan Aubrecht,Pavel Honzatko,Václav Kubeček +7 more
TL;DR: In this paper, a self-swept erbium fiber laser emitting around 1.56μm is reported, and a method of determining the direction of the wavelength drift using the monochromator based optical spectrum analyzer is described.
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