Abstract
We report on the laser emission of erbium-doped fluoride glasses in the spectral range from 2.7 to . The pump source was a fiber-coupled InGaAs semiconductor laser emitting near . The laser performance of bulk samples with various contents was investigated with respect to the optimum doping concentration, which is estimated to be higher than 8 mol. %. A maximum output power of and a slope efficiency of were achieved. Results are compared with previously published data on erbium-doped ZBLAN fiber and crystal lasers.
© 1999 Optical Society of America
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