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High-power 83 W holmium-doped silica fiber laser operating with high beam quality

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Abstract

A high-power 83W cladding-pumped Tm3+-Ho3+-doped silica fiber laser is reported. Using bidirectional 793nm diode pumping, a maximum slope efficiency of 42% was produced after a threshold launched pump power of 12W was exceeded. The laser operated at wavelengths near 2105nm with moderate beam quality, i.e., M21.5. Further power scaling of the fiber laser was limited by thermal failure of the fiber ends.

© 2007 Optical Society of America

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