Mamyshev oscillators can generate high-power femtosecond pulses, but starting a mode-locked state has remained a major challenge due to the suppression of continuous-wave lasing. Here, we study the starting dynamics of a linear Mamyshev oscillator designed to generate high-power femtosecond pulses while avoiding component damage. Reliable starting to stable mode-locking is achieved with a combination of modulation of the pump power and shifting of a filter passband. The starting process is automated, with full electronic control. The laser delivers 21-nJ pulses that are dechirped to 65 fs in duration outside the cavity.

中文翻译：

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线性腔飞秒马梅雪夫振荡器的启动动力学


马米雪夫振荡器可以产生高功率飞秒脉冲，但由于连续波激光的抑制，启动锁模状态仍然是一个主要挑战。在这里，我们研究了线性 Mamyshev 振荡器的启动动力学，该振荡器旨在生成高功率飞秒脉冲，同时避免组件损坏。通过泵浦功率调制和滤波器通带移位的组合，实现了稳定锁模的可靠启动。启动过程是自动化的，采用全电子控制。激光器发出 21 nJ 脉冲，在腔外持续时间为 65 fs。