Optical spectroscopy and multiple-line gain in Pr3+-activated fluoroaluminate glass

We demonstrate the results of excited-state absorption measurements that reveal optical gain at several lines due to triplet–triplet transitions in Pr3+ ions in a fluoroaluminate glass host. Gain around 589 nm is especially attractive for laser applications in the area of satellite communication. The multiple-line character of the gain as well as the broadening of these lines is very promising because it can make possible the creation of a widely tunable solid-state laser. The gain measurements are complemented by systematic measurements of the basic spectroscopic characteristics of Pr3+ in the fluoroaluminate glass host, where we demonstrate the role of energy transfer and nonradiative transitions in the deexcitation process. The latter is associated with a defect state in the glass host.

[1]  Animesh Jha,et al.  Yellow-to-blue frequency upconversion in Pr3+-doped aluminium fluoride glasses , 2001 .

[2]  S. Girard,et al.  Experimental and theoretical investigation of the 4fn↔4fn-15d transitions in YPO4:Pr3+and YPO4:Pr3+, Ce3+ , 2001 .

[3]  Stephen F Collins,et al.  Dependence of the fluorescence lifetime on dopant concentration and temperature in praseodymium-doped fluoride glass , 2000 .

[4]  Animesh Jha,et al.  Pr3+-doped fluoride glass for a 589nm fibre laser , 2000 .

[5]  C. Koepke,et al.  Optical spectroscopy and excited state absorption of the ZAS (ZrO2 Al2O3 SiO2) glass doped with chromium , 1999 .

[6]  Maurizio Ferrari,et al.  Optical spectroscopy of zinc borate glass activated by Pr3+ ions , 1998 .

[7]  G. Beall,et al.  Excited state absorption in Cr3+-doped gahnite glass ceramics , 1998 .

[8]  R. Denning,et al.  Site selective spectroscopy and molecular dynamics simulation of Eu(III) ZBLAN glasses , 1996 .

[9]  B. Jacquier,et al.  Upconversion mechanisms of a praseodymium-doped fluoride fibre amplifier , 1996 .

[10]  R. Q. Fugate,et al.  Characterization of artificial guide stars generated in the mesospheric sodium layer with a sum-frequency laser. , 1994 .

[11]  A. Wojtowicz,et al.  Luminescence Quenching of Strongly Coupled Systems , 1993 .

[12]  Andrzej J. Wojtowicz,et al.  Excited-state absorption in excimer-pumped CaWO4 crystals , 1993 .

[13]  Henderson,et al.  Disorder and nonradiative decay of Cr3+-doped glasses. , 1992, Physical review. B, Condensed matter.

[14]  S. F. Carter,et al.  CW room temperature operation of praseodymium-doped fluorozirconate glass fibre lasers in the blue-green, green and red spectral regions , 1991 .

[15]  H. Poignant,et al.  Tunable CW lasing around 610, 635, 695, 715, 885 and 910 nm in praseodymium-doped fluorozirconate fibre , 1991 .

[16]  K. Petermann,et al.  Excited state absorption of Ti3+:YAlO3⋆ , 1989 .

[17]  B. Henderson,et al.  Optical spectroscopy of inorganic solids , 1989 .

[18]  B. C. Joshi.  Non-radiative energy transfer from trivalent dysprosium to praseodymium in calibo glass , 1981 .