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 Tm3+:ZBLAN fiber laser is upconversion pumped at 1070nm and emits at 1480nm. Using two different all-fiber cavities, we observed a threshold as low as 75mW and a conversion efficiency of up to 40% with respect to launched pump power.

© 2007 Optical Society of America

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