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Single-polarization large-mode-area Yb-doped photonic crystal fiber

: Schmidt, O.; Rothhardt, J.; Eidam, T.; Roser, F.; Limpert, J.; Tünnermann, A.; Hansen, K.P.; Jakobsen, C.; Broeng, J.

Institute of Electrical and Electronics Engineers -IEEE-:
Conference on Lasers and Electro-Optics & Quantum Electronics and Laser Science Conference, CLEO/QELS 2008. Vol.1 : San Jose, CA, 4 - 9 May 2008
New York, NY: IEEE, 2008
ISBN: 1-55752-859-4
ISBN: 978-1-55752-859-9
Conference on Lasers and Electro-Optics (CLEO) <2008, San Jose/Calif.>
Conference on Quantum Electronics and Laser Science (QELS) <2008, San Jose/Calif.>
Conference Paper
Fraunhofer IOF ()

We report on an ytterbium-doped, single-polarization, single-mode large-mode-area rod-type photonic crystal fiber. The active core possesses a diameter of 70 mum and a single-polarization window ranging from 1030 to 1090 nm. In a laser experiment without any intracavity polarization control up to 163 W of output power are obtained, with a degree of polarization better than 85% and a M2-value of 1.2.