Fig. 1. Experimental setup diagrams. (a) Diagram of the chip and coupling device; (b) structure of experimental setup

Fig. 2. Evolution of soliton generation processes during scanning of the pump laser detuning. Optical spectra of (a) primary comb, (b) MI comb, (c) breather, and (d) single soliton; (e)‒(h) spectra corresponding to Figs. (a)‒(d)

Fig. 3. RF spectra of the injection locking process. (a)‒(d) Spectra of different stages of injection locking process (black diamonds labeled as injected signals); (e) evolution of the RF spectra with varied modulation signal frequency (dashed line represents position of injected frequency)

Fig. 4. Fast power evolution record of a comb line near the 1557 nm wavelength for breather

Fig. 5. Experimental results of intermode breather. (a) Optical spectra of intermodal breather; (b) RF spectrum of intermodal breather; (c) spectrum of different stages of injection locking process (black diamonds labeled as injected signals)