Abstract
Among non-linear optical processes, Four Wave Mixing (FWM) can be exploited for the generation of tunable light pulses in several spectral regions. Usually this process is driven in bulk materials [1], which are prone to optical damage at high pump laser intensities. Here we report on the implementation of a FWM experiment based on a two-colour ultrafast field interaction inside a gas-filled Hollow Core Fiber (HCF). A FWM-based tunable source of new spectral components is thus obtained. The high-damage threshold and the long interaction distance provided by the HCF-based configuration are suitable for high energy applications.
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