High-power air-clad large-mode-area photonic crystal fiber laser
- Limpert, J.
- Schreiber, T.
- Nolte, S.
- Zellmer, H.
- Tünnermann, A.
- Iliew, R.
- Lederer, F.
- Broeng, J.
- Vienne, G.
- Petersson, A.
- Jakobsen, C.
DOIAbstract
We report on a 2.3 m long air-clad ytterbium-doped large-mode area photonic crystal fiber laser generating up to 80 W output power with a slope efficiency of 78%. Single transverse mode operation is achieved with a mode-field area of 350 µm2. No thermo-optical limitations are observed at the extracted ~35W/m, there fore such fibers allow scaling to even higher powers
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