Analysis of statistical correlations and intensity spiking in the self-amplified spontaneous-emission free-electron laser

• Main Authors: S. Krinsky, R. L. Gluckstern
• Format: Article
• Language: English
• Published: American Physical Society 2003-05-01
• Series: Physical Review Special Topics. Accelerators and Beams
• Online Access: http://doi.org/10.1103/PhysRevSTAB.6.050701

The narrow band chaotic output of the self-amplified spontaneous-emission free-electron laser exhibits intensity spikes. In the linear regime before saturation, we use an approach developed by Rice to determine probability distributions for the peak values of intensity in both the time and frequency domains. We also find the average number of spikes per unit time or frequency. In addition, we derive joint probabilities for the intensity in the output pulse to have values I_{1} and I_{2} at times t_{1} and t_{2}, and for the spectral intensity to have values I[over ˜]_{1} and I[over ˜]_{2} at frequencies ω_{1} and ω_{2}.