Light-Induced Dynamic Frequency Shifting of Microwave Photons in a Superconducting Electro-Optic Converter

Hybrid superconducting-photonic microresonators are a promising platform for realizing microwave-to-optical transduction. However, the absorption of scattered photons by superconductors leads to unintended microwave resonance-frequency variation and line-width broadening. Here, we experimentally study dynamics this effect its impact on microwave-to-optics conversion in an integrated lithium niobate--superconductor hybrid-resonator platform. We unveil adiabatic frequency shifting intracavity induced fast photoresponses thin-film superconducting resonator. As result, temporal spectral responses electro-optics transduction modified well described our theoretical model. This work provides insights into light-induced that must be considered future designs hybrid system.