Snigirev, VRiedhauser, A.Likhachev, G.Riemensberger, J.Wang, R. N.Moehl, C.Churaev, M.Siddharth, A.Huang, G.Popoff, Y.Drechsler, U.Caimi, D.Hoenl, S.Liu, J.Seidler, P.Kippenberg, T. J.2023-03-272023-03-272023-03-272022-01-01https://infoscience.epfl.ch/handle/20.500.14299/196474WOS:000925380500099We demonstrate narrow- linewidth ultrafast tunable integrated lasers based on heterogeneously integrated thin-film lithium niobate on ultra-low loss silicon nitride integrated photonic circuits. Using self-injection locking of a hybrid microresonator, we achieve a tuning speed of > 10 peta-Hertz-per-second. We also perform FMCW LiDAR ranging experiments. (C) 2022 The Author(s)OpticsTelecommunicationstext::conference output::conference proceedings::conference paper