Figure 4

Measurement of waveform fluctuations for a chirped MIR pulse. (a) Measured EOS trace of chirped pulse. Empty circles: selected zero-crossings (red) and extrema (green) for the measurements in (b) and (c). (b) Instantaneous wavelength over the chirped pulse. (c) Measured amplitude noise across the pulse, for the 10-kHz-to-0.625-MHz band, with the AOM-stabilisation on (dark green circles) and off (light green circles). (d) Temporal jitter for each selected zero-crossing of the MIR waveform, in the 10-kHz-to-0.625-MHz band, with the AOM-stabilisation on (dark red circles) and off (light red circles). Grey shaded areas: detection limit, analogous to Fig. 3. Error bars in (c) and (d) indicate the standard deviation of five measurements each.