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arXiv · 2311.08518

Light-Induced Microwave Noise in Superconducting Microwave-Optical Transducers

Mingrui Xu·Chunzhen Li·Yuntao Xu·Hong X. Tang
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Abstract

Microwave-to-optical transducers are integral to the future of superconducting quantum computing, as they would enable scaling and long-distance communication of superconducting quantum processors through optical fiber links. However, optically-induced microwave noise poses a significant challenge in achieving quantum transduction between microwave and optical frequencies. In this work, we study light-induced microwave noise in an integrated electro-optical transducer harnessing Pockels effect of thin film lithium niobate. We reveal three sources of added noise with distinctive time constants ranging from sub-100 nanoseconds to milliseconds. Our results gain insights into the mechanisms and corresponding mitigation strategies for light-induced microwave noise in superconducting microwave-optical transducers, and pave the way towards realizing the ultimate goal of quantum transduction.

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Mingrui Xu, Chunzhen Li, Yuntao Xu, Hong X. Tang. 2023-11-14. Light-Induced Microwave Noise in Superconducting Microwave-Optical Transducers. https://arxiv.org/abs/2311.08518

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