Abstract

A variety of optical fibre temperature sensors have been demonstrated which rely on toe temperature dependence of rare earth doped glass spectra and excited state lifetimes [1] Excited state lifetime are also affected by the dopant concentration and as a result, the optimisation of a sensor require tradeoffs between signal strength dopant concerntoation and length of fibre sensor elemeat Here we present a study of the temperature and concentoation dependence of the ³P₀ state of Pr³⁺ doped ZBLANP which is designed to elucidate these tradeoffs

© 2000 IEEE