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The spectroscopic properties of 2-μm emission in Ho3+-doped lanthanum–tungsten–tellurite glasses with different Ho2O3 concentrations were investigated. The strongest emission was observed in a glass sample doped with 0.5mol% Ho2O3, with a fluorescence lifetime of 3.16ms and a emission cross section of 6.97×10−21cm2 at 2040nm. For this composition, no obvious changes in the emission properties and...
A novel Tm 3+ -doped lead silicate glass with good thermal stability was prepared in this work. Through thorough investigation of 2µm luminescent properties of the glasses, optimal Tm 2 O 3 doping concentration was checked to be 3wt%. Double cladding fiber was prepared by stacking method. As a result, 2µm laser output was realized in a 40cm fiber and the maximum output power...
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