Title :
High-power (400 mW) diode-pumped 2.7 μm Er:ZBLAN fibre lasers using enhanced Er-Er cross-relaxation processes
Author :
Srinivasan, B. ; Poppe, E. ; Tafoya, J. ; Jain, R.K.
Author_Institution :
Center for High Technol. Mater., New Mexico Univ., Albuquerque, NM, USA
fDate :
8/5/1999 12:00:00 AM
Abstract :
The authors report the use of enhanced inter-ion cross-relaxation in Er:ZBLAN fibres of double clad geometries for the realisation of high-power (400 mW) diode-pumped 2.7 μm lasers. The enhanced Er-Er cross-relaxation was enabled by the formation of clusters, around drawing-induced defects, even at moderate mean doping densities in such fibres. Further extension of this work should enable multi-Watt CW power level lasers at 2.7 μm in the foreseeable future
Keywords :
aluminium compounds; barium compounds; erbium; fibre lasers; fluoride glasses; lanthanum compounds; sodium compounds; zirconium compounds; 2.7 micrometre; 400 mW; ZBLAN:Er; ZrF4-BaF2-LaF3-AlF3-NaF:Er; diode-pumped lasers; double clad geometries; drawing-induced defects; fibre lasers; inter-ion cross-relaxation; mean doping densities; multi-Watt CW power level;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19990899
