Fig. 3: Experimental generation of perfect soliton crystals.
From: Dissipative soliton generation and real-time dynamics in microresonator-filtered fiber lasers
a–c soliton crystal with 2-FSR (a), 4-FSR (b) and 6-FSR (c). Left: optical spectrum. There is an power offset between the spectra before and after the microresonator to clearly show the envelope of the XPM induced combs. Inset: enlarged spectrum and RF beat note of the soliton repetition rate. XPM comb peaks are indicated by orange solid circles. RF beat note of the soliton repetition rate with 60 GHz is not measured due to the lack of commercial electronics (see Methods). Right: real-time evolution of stable soliton recorded by time magnifier system. Inset: temporal trace calibrated by the responsivity curve. The white dashed line shows the time window of the calibrated trace
