This paper was to investigate the optical and luminescence properties of Sm3+ doped SLB glasses by a melt quenching technique. The optical and luminescence properties of the prepared glass samples were investigatedvia ab-sorption and photoluminescence spectra, respectively. The related physical and optical parameters were also calculated. From optical absorption measurements, the transition6H5/2→6P3/2at 403 nm has a higher spectral intensity and is a hypersensitive transition. From photoluminescence spectra, four prominent emission spectra appear. The most intense band is located at4G5/2→6H9/2(599 nm), which is the characteristic emission range of Sm3+ ions with the reddish orange color. The experimental decay time of the4G5/2 level of Sm3+ SLB glasses was determined. The decay time decreases from 1.367 to 0.333 ms with increasing the content of Sm3+. The color coordinates (x,y) of the prepared glasses passes through the reddish-orange region in the CIE 1931 diagram and are suitable for orange LEDs, optoelectronics, and solid- state lighting. The further investigation on the optimization of the dopant content in the SLB glasses was suggested.
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