Optical characterization of Pr3+ and Dy3+ doped chalcogenide glasses

摘要: Abstract The optical properties of several sulfur-based glasses doped with Pr3+ and Dy3+ have been measured, emphasis on the 1.3 μm emission quantum efficiency. Glass hosts prepared using conventional methods include As2S3, As2S3 1.7 mol% I2, Ge30As10S60, Ge25Ga5S70, Ge35S56.5I8.5 for Pr3+, all but based compositions Dy3+. Data obtained from absorption fluorescence spectra lifetime measurements were used theoretical predictions These efficiencies compared to absolute efficiency either an integrating sphere system or a self-calibration technique (Pr3+ only, no As2S3-based glasses). latter method produced erroneous values having electronic edges beyond 500 nm, possibly due host sensitization phenomenon. A 100 ppm Pr2S3 GeGaS glass was most efficient at μm, measuring 93% via technique. measured first reported our knowledge, less than those theoretically predicted. sample, 0.1 wt% Dy2S3 GeSI glass, be 6%.