Energy Noise and Timing Jitter of Few-Femtosecond Pulses Generated by Resonant Dispersive Wave Emission in Hollow-Core Waveguides

The emission of resonant dispersive waves (RDWs) in gas-filled hollow-core waveguides is a promising source of bright few-femtosecond pulses tuneable from the vacuum ultraviolet to the near infrared [1] , [2] . Being based on soliton self-compression of an intense ultrafast laser pulse, the generation process is highly dynamical and depends sensitively on the pulse driving it. In contrast to simpler frequency conversion schemes, the RDW is not intrinsically locked to the driving pulse. Fluctuations in the pump pulse parameters (energy and duration) create noise in both the energy and arrival time of the RDW pulse. This is of critical importance for the field of ultrafast spectroscopy, where the short duration and wavelength tuneability offered by RDW emission will enable new experiments.