Abstract
A high-power cladding-pumped -doped silica fiber laser is reported. Using bidirectional diode pumping, a maximum slope efficiency of 42% was produced after a threshold launched pump power of was exceeded. The laser operated at wavelengths near with moderate beam quality, i.e., . 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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