Fig. 1: Principle of multi-port real-time observation.
From: Multi-port real-time observation for ultrafast intracavitary evolution dynamics

a Soliton evolves continuously in the cavity and (b) the spectral beating process of intracavity soliton from simulation (the detailed simulation parameters are shown in Table 1). RT: round trip. c Discrete observation by single output reflects an incomplete spectral beating process and (d) Multiple output observation increases the sampling rate to show details of the soliton evolution process.