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Title: Cryogenic microwave-to-optical conversion using a triply resonant lithium-niobate-on-sapphire transducer

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 of6.6×<#comment/>10−<#comment/>6and 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.

 
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NSF-PAR ID:
10204837
Author(s) / Creator(s):
; ; ; ; ; ; ; ;
Publisher / Repository:
Optical Society of America
Date Published:
Journal Name:
Optica
Volume:
7
Issue:
12
ISSN:
2334-2536
Page Range / eLocation ID:
Article No. 1737
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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