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Preparation and photoluminescence properties of Er3+ -doped silicate glasses

Glasses with different Er3+-doped concentrations were fabricated, and J-O theory, F-L theory and MC theory have been used to calculate the spectral characteristics of Er3+ -doped glasses. The influences of Er3+ -doped concentration and the composition of matrix glass material on the physical properties and spectral properties were analyzed and the best doping concentration was obtained. The results confirmed that a strong Near-infrared fluorescence emission at the wavelength of 1534 nm was obtained with the pumped wavelength of 488 nm, 532 nm and 800 nm, respectively, in Er3+ -doped cadmium silicate glass. The results obtained have confirmed that the sample was an excellent candidate for preparation of doped photonic crystal fiber material.