Control of spectroscopic fluorescence parameters of Nd3+ ions as a function of concentration in a SiO2-Na2O-Al2O3-B2O3 glass system

► Evidences of spectroscopic parameter control were observed in Nd3+ ions in SNAB glass system. ► The Judd Ofelt parameters were dependent on Nd3+ concentration, indicating a ligand field change. ► Non-radiative processes were proposed to explain the decrease in 4F3/2 lifetime of Nd3+.