Individual addressability for short-wavelength transitions through visible integrated photonics with free-space nonlinear conversion
ORAL
Abstract
Integrated photonic devices offer a path to perform site-addressable quantum gates on thousands of atomic systems, pushing beyond the limits of bulk optical modulators. Integrated photonic platforms with transparency in the blue and ultraviolet—wavelengths required for many quantum gate protocols—are less developed than platforms for the visible or telecom. Here, we propose and implement a strategy to convert light from arrays of thin-film-lithium-niobate integrated photonic modulators to blue and ultraviolet wavelengths via sum-frequency generation with a strong pump beam. Using this strategy, we enable multi-channel, GHz modulation, from 300 nm to 900 nm with a single device. We discuss implications for Rydberg gates on neutral atom qubits.
*This work is supported by the Air Force Office of Scientific Research under award No. FA9550-20-1-0105, and the National Reconnaissance Office (NRO) under Air Force Contract No. FA8702-15-D-0001. Lithium niobate fabrication at the Centre Suisse d'Electronique et de Microtechnique (CSEM) was supported by the European Union's Horizon 2020 research and innovation program under grant agreement No. 101016138.
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Presenters
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Thomas Propson
- Massachusetts Institute of Technology