Abstract
We report what we believe is the first monolithic fluoride-fiber laser making use of fiber Bragg gratings written directly in the doped fluoride-fiber core. The fiber laser is upconversion pumped at and emits at . Using two different all-fiber cavities, we observed a threshold as low as and a conversion efficiency of up to 40% with respect to launched pump power.
© 2007 Optical Society of America
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