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EIC Pathfinder: CSOC

Full Name: Chip-scale Optical Atomic Clock

Duration: 1/10/2022-30/9/2025

Partners:

  • UGent
  • MENLO SYSTEMS GMBH
  • DANMARKS TEKNISKE UNIVERSITET
  • INSTYTUT WYSOKICH CISNIEN POLSKIEJ AKADEMII NAUK
  • LIGENTEC SA
  • ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE

Objective:

  • The EU-funded CSOC project aims to develop the first chip-scale optical clock. The miniaturised optical clock will utilise the two-photon transition in the rubidium-85 isotope that vastly improves the signal compared to current atomic clocks relying on radiofrequency transitions. The project work will build on recent advances in Kerr soliton microcomb technology, picosecond mode-locked lasers and heterogeneously integrated on a chip as well as higher-efficiency chip frequency doublers achieved by the partners.

People involved

Research topics involved

Publications in the framework of this project (6)

        International Conferences

      1. D. Wang, T. N. L Tran, J. Carreira, C. Op de Beeck, S. Cuyvers, M. Geiselmann, S. Poelman, T. Reep, J. Zhang, G. Roelkens, B. Kuyken, O-band GaAs Quantum Dot Optical Amplifier Integrated on an Advanced SiN Platform, IEEE Opto-Electronics and Communications Conference (OECC) 2025, Japan, doi:10.23919/OECC/PSC62146.2025.11110589 (2025).
      2. T. N. L Tran, T. Reep, M. Kiewiet, A. Fernandez Gamez, D. Wang, K. Van Gasse, G. Roelkens, B. Kuyken, Coupling and Fabrication for Micro-Transfer-Printed O-Band Quantum Dot Lasers on Silicon Nitride Platforms, Conference on Lasers and Electro-Optics, Germany, p.paper cb_p_19 (1 page) doi:10.1109/CLEO/Europe-EQEC65582.2025.11111404 (2025).
      3. D. Wang, T. Reep, T. N. L Tran, S. Poelman, J. Carreira, C. Op de Beeck, S. Cuyvers, M. Geiselmann, J. Zhang, G. Roelkens, B. Kuyken, O- and C-band III-V-on-SiN Mode-Locked Comb Lasers Integrated on a Single Chip, Conference on Lasers and Electro-Optics (2025) - Postdeadline Papers, United States, doi:10.1364/CLEO_SI.2025.PD102_2 (2025)  Download this Publication (2.3MB).
      4. D. Wang, T. N. L Tran, S. Poelman, T. Reep, J. Zhang, G. Roelkens, B. Kuyken, Heterogeneous integration of O-band GaAs QD-on-SiN Fabry-Perot laser with observed mode-locking, SPIE Photonics West 2025, United States, p.13371-28 doi:10.1117/12.3043001 (2025)  Download this Publication (13.7MB).
      5. F. Laporte, J. Dambre, P. Bienstman, Neuromorphic Computing with Signal-Mixing Cavities, IEEE International Conference on Rebooting Computing, United States, doi:10.1109/icrc.2018.8638622 (2018).
      6. R. Baets, Y. Li, Medical device applications of silicon photonics., European Optical Society Biennial Meeting (EOSAM) 2018 (invited), Netherlands, (2018)  Download this Publication (677KB).