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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.

Postprint (582 KByte; PDF; )

Optics Express 11 (2003), Nr.7, S.818-823
ISSN: 1094-4087
Zeitschriftenaufsatz, Elektronische Publikation
Fraunhofer IOF ()
laser; fiber; fiber design and fabrication

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.