High-power pulsed diode-pumped Er:ZBLAN fiber laser
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Martin Gorjan1, Rok Petkovšek, Marko Marinček
1Laboratory for Quantum Optics, Department of Physics, University of Ljubljana, Jadranska 19, 1000 Ljubljana, Slovenia. martin.gorjan@fotona.com
Abstract:
We report on the operation and performance of a gain-switched Er:ZBLAN fiber laser based on an active pulsed diode pump system. The produced laser pulses offer high peak powers while retaining the high average powers and efficiency of the cw regime. The measured pulse duration was about 300 ns and nearly independent of the pump repetition frequency. The maximum obtained 68 W of peak power is the highest reported, to our knowledge, for diode-pumped Er:ZBLAN fiber lasers, and the 2 W of average power at the repetition frequency of 100 kHz is 2 orders of magnitude higher than previously reported average power in a pulsed regime. The obtained slope efficiency was 34%.
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