Raman lasing and soliton mode-locking in lithium niobate microresonators

摘要

Schematic of the LN crystalline structure. The crystal axis is along the -axis. , Orientation of the LN microresonator on an X-cut wafer. A 30-GHz free spectral range (FSR) racetrack resonator is used for the Raman characterisation. A 250-GHz FSR microring resonator is used for the Raman–Kerr interactions. The TE and TM polarisations are also indicated. Setup for the forward (FW) and backward (BWD) Raman characterisation. EDFA erbium-doped fibre amplifier, BPF bandpass filter, FPC fibre polarisation controller, OSA optical spectrum analyser.