Figure 3
From: Ytterbium-doped fiber laser as pulsed source of narrowband amplified spontaneous emission
(a–c) Oscilloscope traces of YDFL noise pulses for three different laser powers (indicated in each plot). The horizontal dash lines indicate Pmean-values of the signals. (d) Zero-order peaks of the squared first-order coherence for the same laser powers. (e) τc versus Pmean. (f) Relation between °τc found from curve 1 in (e) and the most probable value of noise pulses’ width Δt. Symbols represent the data for different intervals of noise pulse magnitude (specified in inset). The violet arrow shows the direction in which the laser power increases (some values of laser power are marked near experimental points). The dot line is linear fit in log-log plot. Inset shows the ranges of ratio r = Ppeak/Pmean (Ppeak is the peak power of noise pulses).
