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

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

European Conference on Optical Communication (ECOC) 2022
Technical Digest Series (Optica Publishing Group, 2022),
paper We2E.4

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, and Christian Koos

European Conference and Exhibition on Optical Communication 2022

Basel Switzerland
18–22 September 2022
ISBN: 978-1-957171-15-9

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Programmable Photonics and Comb Lasers (We2E)

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P. Maier, Y. Chen, Y. Xu, M. Blaicher, D. Geskus, R. Dekker, J. Liu, P. Dietrich, H. Peng, S. Randel, W. Freude, T. J. Kippenberg, and C. Koos, "InP/Si3N4 Hybrid External-Cavity Laser with sub-kHz Linewidth Acting as a Pump Source for Kerr Frequency Combs," in European Conference on Optical Communication (ECOC) 2022, J. Leuthold, C. Harder, B. Offrein, and H. Limberger, eds., Technical Digest Series (Optica Publishing Group, 2022), paper We2E.4.

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Abstract

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.

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