High-power (400 mW) diode-pumped 2.7 [micro sign]m Er:ZBLAN fibre lasers using enhanced Er-Er cross-relaxation processes
- 1 January 1999
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 35 (16), 1338-1340
- https://doi.org/10.1049/el:19990899
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
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