Research

Our group studies nonlinear photonics in ultra-high-Q microresonators. The main focus is the interaction of counter-propagating light and the generation of optical frequency combs with chips made in our own cleanroom.

Microcombs and solitons

How a single laser becomes many evenly spaced colours in a ring resonator, and what those combs are good for.

Quantum light on a chip

Photon pairs and nonclassical light from integrated microresonators.

Symmetry breaking and neuromorphic photonics

Light that spontaneously picks one of two states: optical switches, memories and logic gates, towards computing with light.

Nonlinear photonics

New colours and new light sources from nonlinear optics in microresonators: harmonic generation, Raman lasing and coupled resonators.

Integrated platforms and fabrication

Low-loss silicon nitride and aluminium nitride chips, made in our own cleanroom.

Funding and partners

Our work is supported by several funders and partners.

Max Planck Society
Max Planck Institute for the Science of Light
Munich Quantum Valley
Project TeQSiC.
German Federal Ministry of Research, Technology and Space (BMFTR)
Funded by the German Federal Ministry of Research, Technology and Space (BMFTR) within the research programme Quantum Systems, grant numbers 13N17314 and 13N17342.
Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)
Project 541267874.
European Research Council
CounterLight, grant agreement No 756966, under the EU Horizon 2020 research and innovation programme.
Marie Skłodowska-Curie Actions
CoLiDR (No 748519) and Microcomb (No 812818), under the EU Horizon 2020 programme.
EPSRC Centre for Doctoral Training in Applied Photonics
Funding for doctoral students in the group.
Royal Academy of Engineering
Research fellowship, with City University London.