Figure 10
From: Polarization domain wall pulses in a microfiber-based topological insulator fiber laser
PL noise-like pulses.
(a) Pulse traces of fundamental noise-like pulses before (Initial) and after (x axis and y axis) passing through the PBS and (b) corresponding optical spectra (Inset: autocorrelation trace of the total pulse); (c) pulse traces of high order harmonic mode-locked noise-like pulses and (d) corresponding optical spectra.
