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High average power picosecond pulse and supercontinuum generation from a thulium-doped, all-fiber amplifier

机译:掺th全光纤放大器产生高平均功率皮秒脉冲和超连续谱

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摘要

We demonstrate a high-power, picosecond, thulium-doped, all-fiber master oscillator power amplifier with average power of 120.4 W. The compact fiber oscillator is carefully designed with high repetition rate for the purpose of overcoming the detrimental effects of fiber nonlinearity in the later fiber amplifiers. The pulse duration of 16 ps at 333.75 MHz repetition rate results in a peak power of 22.5 kW in the final fiber power amplifier. To the best of our knowledge, this is the first demonstration of average power exceeding 100 W from an ultrashort pulse laser at 2 μm wavelength. On the other hand, by decreasing the fiber oscillator repetition rate and pulse duration for enhancing the fiber nonlinearity effects, we also demonstrate a high-power supercontinuum source with average power of 36 W from 1.95 μm to beyond 2.4 μm in the final fiber power amplifier.
机译:我们演示了一个平均功率为120.4 W的高功率,皮秒,掺th的全光纤主振荡器功率放大器。紧凑型光纤振荡器经过精心设计,具有高重复频率,旨在克服光纤非线性的不利影响。后来的光纤放大器。在333.75 MHz重复频率下16 ps的脉冲持续时间会在最终的光纤功率放大器中产生22.5 kW的峰值功率。据我们所知,这是超短脉冲激光在2μm波长下平均功率超过100 W的首次演示。另一方面,通过降低光纤振荡器的重复频率和脉冲持续时间以增强光纤的非线性效应,我们还证明了在最终的光纤功率放大器中,平均功率为36 W的高功率超连续谱源从1.95μm超过2.4μm 。

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