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All-Fiber Phase-locked Multi-core Photonic Crystal Fiber Laser with Fill-factor Enhancement and High Efficiency

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Abstract

We report large-mode-area Yb-doped 6-core photonic crystal fiber laser in in-phase supermode operation. A monolithic Talbot device, enhancing the fill-factor in fiber and central-lobe fraction in the far-field profile, was demonstrated with 84% slope efficiency.

© 2010 Optical Society of America

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