Fluorescence Properties of ~2H_[(11)/2]、~4S_(3/2)→~4I_[(15)/2]Transitions of Er~(3+) Ion in MFT Glass

The optical transitions intensity parameters of Er3+ in MFT glass were calculated by using the J-O theory. The transition probabilities, branching ratios and lifetimes of Er3+ ion were obtained. The excitation spectra were measured monitored at intense green of 2H11/2, 4S3/2→ 4I15/2 transitions and red fluorescence of 4F9/2 → 4I15/2 transition of Er3+ ion. The fluorescence intensity variation with temperature for 2H11/2, 4S3/2→ 4I15/2 transitions was observed. The fluorescence decay of 2H11/2, 4S3/2→4I15/2 transitions was measured and the quantum efficiency and non-radiative transition rates were calculated.