Nonlinear Optical Bistability in Microring Resonators for Enhanced Phase Sensing
Photonic microring resonators are used in a variety of chip-integrated sensing applications where they allow one to measure transmission intensity changes upon external signals with a sensitivity that scales linearly with the Q factor. In this work, we suggest exploiting the nonlinear self-phase-modulation effect to increase the overall sensitivity by an additional gain factor appearing when the operational point of the nonlinear resonator is chosen just at the crossover from the monostable to the bistable regime. We present the theoretical idea together with a first proof of concept experiment displaying a gain factor of 22 on a chip-integrated silicon-nitride resonator.
Authors
- Patrick Tritschler (ORCID: https://orcid.org/0000-0002-6765-1313)
- Rouven H. Klenk (ORCID: https://orcid.org/0000-0002-5906-6667)
- Wolfgang Vogel (ORCID: https://orcid.org/0000-0002-0611-5365)
- Christian Schweikert (ORCID: https://orcid.org/0000-0001-6651-0781)
- Peter Degenfeld-Schonburg (ORCID: https://orcid.org/0000-0002-3772-4710)
- Torsten Ohms (ORCID: https://orcid.org/0000-0003-3772-2392)
- Georg Rademacher (ORCID: https://orcid.org/0000-0002-9156-6928)
- André Zimmermann (ORCID: https://orcid.org/0000-0003-1824-9376)
- Simon Abdani
- Onur Sözen
Institutions
- University of Stuttgart (DE)
- Hahn-Schickard-Gesellschaft für angewandte Forschung (DE)
- Robert Bosch (Taiwan) (TW)
- Optica (US)
- Robert Bosch (Germany) (DE)
Publication Details
- Journal
- Physical Review Letters
- Published
- 2025-03-25
- DOI
- https://doi.org/10.1103/physrevlett.134.123802
- Citations
- 5
- Primary Topic
- Advanced Fiber Laser Technologies
- Type
- article
- Field-Weighted Citation Impact
- 6.23
Funders
- European Commission
- Bundesministerium für Wirtschaft und Energie
- Bayerische Staatsministerium für Wirtschaft, Landesentwicklung und Energie