Fig. 4: Kerr frequency comb generation for TE-polarised light.
From: Raman lasing and soliton mode-locking in lithium niobate microresonators
a Raman and Kerr oscillations for the TE mode from an LN microresonator as the pump laser is tuned into the cavity resonance (top to bottom). b RF spectrum corresponding to the bottom spectra in a.
