Spectroscopic determination of laser cross-section and quantum efficiency of the Er3+ laser transition at 2.7 μm are reported for the first time for a fluoride glass of the ZBLAN type. Comparisons with crystal values and other glass compositions are given. Emission spectra of Er3+ at 2.7 μm are also presented for the first time.
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Auzel et al. (1988) studied this question.