Measurements of the temperature and strain responses of fluorescence lifetimes
for two transitions in praseodymium-doped silica optical fibres are presented.
These properties were found to be similar to those measured for other
rare-earth-doped fibres, except for the strain response. In particular, the
fluorescence lifetime of the ,
3H6 transition (centred on 870 nm) exhibited a slight
decrease with applied strain, rather than an increase. This has implications for
our understanding of how strain in rare-earth-doped optical fibres affects
fluorescence properties.
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