Algorithm based comparison between the integral method and harmonic analysis of the timing jitter of diode-based and solid-state pulsed laser sources

Harmonic analysis of jitter in an ultra‐stable fibre laser regeneratively mode‐locked at 10 GHz

“…By performing an analysis of the noise pedestals present in these harmonics, the amplitude jitter and timing jitter [2, 3, 5, 6] of the ML pulses can be identified, and then evaluated via integrations of the noise power in the pedestals. A comparison of these two approaches, given in [6, 8], shows that they provide consistent results if the downconversion process used in the first approach does not incur excess noise, and a sufficiently wide measurement range for Δ f is used to characterise L ( f ). For the second approach, wideband RFSA and photodetectors (PDs) must be available to accurately measure the noise pedestals for at least a few harmonics of the ML pulses.…”