2-MW peak-power pulses from a dispersion-managed fluoride fiber amplifier at 2.8 μm

We report on a scheme of pulse amplification and simultaneous self-compression in fluoride fiber for generating a high-peak-power pulse at 2.8-mu m wavelength. We find dispersion management plays a key role for the amplification and self-compression process. Through dispersion management with a Ge rod, pulse amplification and simultaneous pulse self-compression were realized in the small anomalous dispersion region. A 2-MW peak-power pulse was achieved through amplification and self-compression in Er:ZBLAN fiber, with pulse energy of 101 nJ and pulse duration of 49 fs. To the best of our knowledge, this is the highest peak power obtained from fluoride fiber at 2.8 mu m, and will benefit a series of applications. (C) 2021 Optical Society of America

Automated summary

A scheme of pulse amplification and simultaneous self-compression in fluoride fiber has been reported for generating high-peak-power pulse at 2.8-mu m wavelength, achieved through dispersion management with a Ge rod. A peak power of 2 MW was obtained from Er:ZBLAN fiber, with pulse energy of 101 nJ and pulse duration of 49 fs, the highest peak power from fluoride fiber at 2.8 mu m wavelength to date, benefiting various applications.