InP/Si3N4 Hybrid External-Cavity Laser with sub-kHz Linewidth Acting as a Pump Source for Kerr Frequency Combs

Maier, PascalChen, YungXu, YilinBlaicher, MatthiasGeskus, DimitriDekker, RonaldLiu, JunqiuDietrich, Philipp-ImmanuelPeng, HuanfaRandel, SebastianFreude, WolfgangKippenberg, Tobias J.Koos, Christian2023-03-272023-03-272023-03-272022-01-01https://infoscience.epfl.ch/handle/20.500.14299/196525WOS:000925380500206We report on an InP/Si3N4 hybrid integrated ECL that relies on 3D-printed coupling elements such as intra-cavity photonic wire bonds and facet-attached microlenses. We demonstrate 90 nm tuning range, SMSR above 60 dB, and intrinsic linewidths of 979 Hz. We use the ECL as tunable pump laser for Kerr-comb generation. (C) 2022 The Author(s)OpticsTelecommunicationsInP/Si3N4 Hybrid External-Cavity Laser with sub-kHz Linewidth Acting as a Pump Source for Kerr Frequency Combstext::conference output::conference proceedings::conference paper