We report on the first observations, to our knowledge, of the 4F3/2→4I11/2 (1060-nm) induced fluorescence in a Nd-doped CaO–Al2O3 glass pumped by an 810-nm diode laser. This new doped glass is produced as a 3-mm-diameter sphere by heating and melting in an aerodynamic containerless trap and is rapidly solidified by radiative cooling (>350 K/s). This glass has an interesting Nd3+ emission maximum at 1067 nm (not many doped glasses have their emission maxima close to 1067 nm). The measured fluorescence decay time of the 4F3/2 level is short (0.3 ms) when the ion is excited by a narrow-band pulsed dye laser.
© 1997 Optical Society of America
[Optical Society of America ]
P.-F. Paradis, F. Babin, J.-M. Gagné, and S. Lévesque, "Analysis of the fluorescence of a Nd-doped 50% CaO–50% Al2O3 glass, pumped at 810 nm, between 1050 and 1100 nm," J. Opt. Soc. Am. B 14, 1009-1012 (1997)