Optica Open Access Publishing AgreementVissers, EwoudPoelman, StijnWenzel, HansChristopher, HeikeVan Gasse, KasperKnigge, AndreaKuyken, Bart2023-02-012023-02-012022https://oa.tib.eu/renate/handle/123456789/11202http://dx.doi.org/10.34657/10238External cavity mode-locked lasers could be used as comb sources for high volume application such as LIDAR and dual comb spectroscopy. Currently demonstrated chip scale integrated mode-locked lasers all operate in the C-band. In this paper, a hybrid-integrated external cavity mode-locked laser working at 1064 nm is demonstrated, a wavelength beneficial for optical coherence tomography or Raman spectroscopy applications. Additionally, optical injection locking is demonstrated, showing an improvement in the optical linewidth, and an increased stability of the comb spectrum.enghttps://opg.optica.org/library/license_v2.cfm#VOR-OA5301064 nmC-bandsChip-scaleComb sourceExternal cavityExternal cavity modesHigh volumesModelocked lasersOptical injection lockingSpectroscopy applicationsArticle