title: Laser emission of erbium-doped fluoride bulk glasses in the spectral range from 2.7 to 2.8 mum.
abstract: We report on the laser emission of erbium-doped fluoride glasses in the spectral range from 2.7 to 2.8 mum . The pump source was a fiber-coupled InGaAs semiconductor laser emitting near lambda(p)~970 nm . The laser performance of bulk samples with various ErF(3) contents was investigated with respect to the optimum doping concentration, which is estimated to be higher than 8 mol. %. A maximum output power of P(out) > 160 mW and a slope efficiency of eta = 10% were achieved. Results are compared with previously published data on erbium-doped ZBLAN fiber and LiYF(4) crystal lasers.
authors: T
authors: T
authors: Sandrock
authors: A
authors: A
authors: Diening
authors: G
authors: G
authors: Huber