Abstract
We demonstrate a simple and compact spectral broadening system, which is based on a single-stage gas-filled hollow core fiber (HCF). In our experiment, the pulse duration of pulses from an ytterbium doped amplifier is compressed from 170 fs down to 7.7 fs by using a 3-m-long gas-filled HCF with a core diameter of 500 μm. The pulse energy before and after HCF is 2 mJ and 0.92 mJ respectively, corresponding to a transmission efficiency of 46%, resulting in peak power of near 0.1 TW. In addition, the energy fluctuation of the output pulse is about 0.5%(RMS) measured in one hour. Such ultrafast light source can provide high stable few-cycle near-infrared driving pulses for strong field physics experiments.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
