Laboratory for Quantum Optics, Department of Physics, University of Ljubljana, Jadranska 19, 1000 Ljubljana, Slovenia.
Opt Lett. 2011 May 15;36(10):1923-5. doi: 10.1364/OL.36.001923.
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%.
我们报告了一种基于主动脉冲二极管泵浦系统的增益开关 Er:ZBLAN 光纤激光器的运行和性能。所产生的激光脉冲具有高峰值功率，同时保持连续波状态的高平均功率和效率。测量的脉冲持续时间约为 300 ns，几乎与泵浦重复频率无关。获得的最大 68 W 的峰值功率是我们所知的最高值，对于二极管泵浦 Er:ZBLAN 光纤激光器而言，在 100 kHz 的重复频率下获得的 2 W 平均功率比以前在脉冲模式下报告的平均功率高 2 个数量级。所得到的斜率效率为 34%。
