2020/05/02 by Timothy P. McKenna, McKenna, Timothy P., Jeremy D. Witmer +16 · 7 citations
Physics and Astronomy · #Advanced Fiber Laser Technologies #FOS: Physical sciences #Mechanical and Optical Resonators #Optics (physics.optics) #Photorefractive and Nonlinear Optics #Quantum Physics (quant-ph) #physics.optics #quant-ph
paper · pdf · doi:10.48550/arxiv.2005.00897
15 pages, 10 figures. First two authors contributed equally to this work
arxiv created 2020/05/02 · openalex publication_date 2020/05/02 · arxiv updated 2020/05/05 · openalex created_date 2022/07/26 · openalex updated_date 2026/07/28
Quantum networks are likely to have a profound impact on the way we compute and communicate in the future. In order to wire together superconducting quantum processors over kilometer-scale distances, we need transducers that can generate entanglement between the microwave and optical domains with high fidelity. We present an integrated electro-optic transducer that combines low-loss lithium niobate photonics with superconducting microwave resonators on a sapphire substrate. Our triply-resonant device operates in a dilution refrigerator and converts microwave photons to optical photons with an on-chip efficiency of 6.6× 10-6 and a conversion bandwidth of 20 MHz. We discuss design trade-offs in this device, including strategies to manage acoustic loss, and outline ways to increase the conversion efficiency in the future.