Experimental determination of radiative-transition rates and quantum efficiencies in Er3+:YAlO3

Markus Pollnau, E. Heumann, T. Danger, G. Huber

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    A method for the measurement of radiative-transition rates in rare-earth-doped laser crystals with several metastable levels is presented. The excited-state absorption in Er3+:YAlO3 is measured in a pump- and probe-beam experiment. With this information the populations of the metastable levels 4I13/2, 4I11/2, and 4S3/2 are derived. In combination with data of the relative fluorescence intensities and fluorescence-decay curves the radiative rates and quantum efficiencies of transitions from these levels are experimentally determined. The results are compared to data from a Judd-Ofelt analysis.
    Original languageUndefined
    Article number10.1016/0030-4018(95)00225-W
    Pages (from-to)250-254
    Number of pages5
    JournalOptics communications
    Issue number3-4
    Publication statusPublished - 1995


    • IOMS-APD: Active Photonic Devices
    • IR-70113
    • EWI-17580

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