Nonradiative relaxation rate modification by chlorine codoping of rare earth activated PZG fluoride glasses

The luminescence of rare earth ions Re3+ = Pr3+, Er3+, and Tm3 in PZG fluoride glass (36PbF2-24ZnF2-35GaF3-5YF3-2AlF3 in mol%) doped with ReCl3 was investigated. This study was initiated in the perspective of realizing by vapor phase deposition (PVD) rare earth activated fluoride glass channel waveguides acting as integrated optical amplifiers, ReCl3 being more volatile than the fluoride counterpart. The results were compared to the spectroscopic properties of ReF3-doped PZG glasses. For phonon-sensitive radiative transitions, the lifetime was prolonged at low ReCl3 concentration because of phonon energy and/or electron coupling are reduced. For Pr3+, the doping with PrCl3 increases the lifetime by 50% in respect to PrF3 doping. These results suggest that the chlorine ions remain in the coordination sphere of the rare earth ions in the ReCl3-doped glass after melting. The luminescence decay of Er3+: 4I13/2 level in ErCl3-doped channel waveguides is also discussed.

[1]  Miss A.O. Penney.  (b) , 1974, The New Yale Book of Quotations.

[2]  Charles Jacoboni,et al.  New transition metal fluoride glasses isolated in the PbF2MtIIF2MtIIIF3 systems , 1981 .

[3]  Charles Jacoboni,et al.  Actual Knowledge of 3d Transition Metal Fluoride Glasses Structure , 1985 .

[4]  Jean-Luc Adam,et al.  Site selection spectroscopy in Eu3+-doped fluorozirconate glass , 1987 .

[5]  Jean-Luc Adam,et al.  Optical properties of Tm3+ ions in indium-based fluoride glasses , 1988 .

[6]  Brigitte Boulard,et al.  Raman spectroscopy vibrational analysis of octahedrally coordinated fluorides: Application to transition metal fluoride glasses , 1989 .

[7]  Brigitte Boulard,et al.  Vapour-phase deposition of rare-earth-doped PZG glasses , 1995 .

[8]  Bernard Jacquier,et al.  Laser spectroscopy of rare earth-doped glass waveguides , 1995 .

[9]  Charles Jacoboni,et al.  The local field distribution of in transition metal fluoride glasses investigated by electron paramagnetic resonance , 1996 .

[10]  I. A. Shcherbakov,et al.  DIFFERENT MECHANISMS OF NONLINEAR QUENCHING OF LUMINESCENCE , 1997 .

[11]  M. A. Noginov,et al.  Reabsorption trapping of luminescence in laser crystals: enhancement of energy storage and upconversion. , 1997, Applied optics.

[12]  Brigitte Boulard,et al.  Design and fabrication of lead-based fluoride glass channel waveguides , 1999 .

[13]  Eric Lebrasseur.  Amplification optique dans les guides d'onde plans en verres de fluorures dopés : caractérisation et spectroscopie des ions dopants : Er3+, Nd3+ et Pr3+ , 1999 .

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

[15]  Setsuhisa Tanabe,et al.  Spectroscopic properties of erbium-doped ultraphosphate glasses for 1.5 μm amplification , 2001 .

[16]  Jean-Luc Adam,et al.  Lanthanides in non-oxide glasses. , 2002, Chemical reviews.

[17]  Laurent Bigot,et al.  Two crystallographic sites in erbium-doped fluoride glass by frequency-resolved and site-selective spectroscopies , 2004 .