We demonstrate a fiber system which amplifies and compresses pulses from a gain-switched diode. A Mamyshev regenerator shortens the pulses and improves their coherence, enabling subsequent amplification by parabolic pre-shaping. As a result, we are able to control nonlinear effects and generate nearly transform-limited, 140-fs pulses with 13-MW peak power-an order-of-magnitude improvement over previous gain-switched diode sources. Seeding with a gain-switched diode results in random fluctuations of 2% in the pulse energy, which future work using known techniques may ameliorate. Further development may allow such systems to compete directly with sources based on modelocked oscillators in some applications while enjoying unparalleled robustness and repetition rate control.

中文翻译：

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高功率飞秒脉冲，无需锁模激光器。

我们演示了一个光纤系统，该系统可以放大和压缩来自增益开关二极管的脉冲。Mamyshev再生器可以缩短脉冲并改善其相干性，从而可以通过抛物线预整形进行后续放大。结果，我们能够控制非线性效应，并产生具有13MW峰值功率的几乎受变换限制的140fs脉冲，这比以前的增益开关二极管源提高了一个数量级。用增益开关二极管播种会导致脉冲能量产生2％的随机波动，使用已知技术的未来工作可能会得到改善。在某些应用中，进一步的发展可能允许此类系统直接与基于锁模振荡器的源竞争，同时享受无与伦比的鲁棒性和重复率控制。