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13 March 2024 55 μm core ytterbium-free erbium-doped VLMA fiber manufactured by REPUSIL technology
Baptiste Leconte, Philippe Roy, Romain Dauliat, Raphaël Jamier, Valérian Freysz, Sébastien Vidal, Marc Castaing, Sébastien Février, Yann Leventoux, Katrin Wondraczek, Sébastien Vergnole
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Proceedings Volume PC12865, Fiber Lasers XXI: Technology and Systems; PC128650L (2024) https://doi.org/10.1117/12.3001612
Event: SPIE LASE, 2024, San Francisco, California, United States
Abstract
In this communication, we report for the first time on a homemade 55 µm core VLMA “Yb-free” Er-doped aluminosilicate double-clad fiber manufactured by the REPUSIL powder sintering technology and its implementation within two different laser configurations emitting around 1560 nm, both pumped at 976 nm. First, a free-running free-space CW oscillator delivers up to 40 W of average power with optical-to-optical efficiency of 30 % and near-diffraction-limited beam, despite the large core size. In a second experiment, the fiber is used as the main amplifier of a MOPA system delivering up to 10 nJ pulses at GHz repetition rate.
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Baptiste Leconte, Philippe Roy, Romain Dauliat, Raphaël Jamier, Valérian Freysz, Sébastien Vidal, Marc Castaing, Sébastien Février, Yann Leventoux, Katrin Wondraczek, and Sébastien Vergnole "55 μm core ytterbium-free erbium-doped VLMA fiber manufactured by REPUSIL technology", Proc. SPIE PC12865, Fiber Lasers XXI: Technology and Systems, PC128650L (13 March 2024); https://doi.org/10.1117/12.3001612
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KEYWORDS
Manufacturing
Ions
Matrices
Optical communications
Oscillators
Refractive index
Silica
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