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Ytterbium-Doped Low-NA P-Al-Silicate Large-Mode-Area Fiber for High Power Applications

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Abstract

We demonstrate an efficient, ytterbium-doped low-NA fiber with core glass containing high levels of Al2O3 and P2O5 in silica host that shows low-photodarkening and generated 175 W of continuous-wave output power with 80% laser efficiency.

© 2010 Optical Society of America

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