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

Pascal Maier,Yung Chen,Yilin Xu,Matthias Blaicher,Dimitri Geskus,Ronald Dekker,Junqiu Liu,Philipp-Immanuel Dietrich,Huanfa Peng,Sebastian Randel,Wolfgang Freude,Tobias J. Kippenberg,Christian Koos

2022 EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (ECOC)（2022）

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摘要

We 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)

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