Slope efficiency of a pulsed 2.8-µm Er3+:LiYF4 laser

R. Spring, M. Pollnau, S. Wittwer, W. Lüthy, H.P. Weber

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    A 40 % slope efficiency from a pulsed Er3+:LiYF4 is demonstrated under cw Timpphire pumping. This value clearly exceeds the Stokes limit of 35% due to energy recycling fiom lower to upper laser level. With reduction of the pump-pulse duration a decrease of the slope efficiency and an increase of the threshold is experimentally observed and confirmed by a computer simulation. An approximate function following an exponential law can be used to describe the dependence of the slope efficiency on the pump-pulse duration.
    Original languageEnglish
    Number of pages3
    Publication statusPublished - Jan 1996
    EventAdvanced Solid State Lasers, ASSL 1996 - San Francisco, United States
    Duration: 31 Jan 19962 Feb 1996


    ConferenceAdvanced Solid State Lasers, ASSL 1996
    Abbreviated titleASSL
    CountryUnited States
    CitySan Francisco


    • IOMS-APD: Active Photonic Devices
    • IR-71680
    • EWI-17961

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