Lotus-like dual soliton generation and phase shifting in an 88 GHz high-order-mode-suppressed Si3N4 microring

Here we report a unique lotus-like dual dissipative soliton spectrum generated in an 88 GHz tapered Si3N4 microring. The mode-locking nature is verified by both amplitude noise and FROG measurement. A continuous phase shifting of such state is successfully observed directly in frequency domain. © 2019 The Author(s)