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Controlling the frequency of nonclassical light is indispensable forimplementing quantum computation, communication and bridging various quantumsystems. However, frequency-shift devices for solid state single-photon sourcesthat are easy to integrate are practically absent. Here, we propose anintegrated single-photon frequency shifter based on acousto-optic modulation.The device consists of two Interdigital Transducers (IDTs) for surface acousticwave (SAW) generation and a silicon waveguide periodically placed at the nodesthe SAW to increase the interaction length. The V{\pi}*L of the device is1.2v.cm. Under 133.2MHz driving frequency and 10 volt driving voltage, a shiftup to 65.7GHz is achieved with near unity conversion efficiency. Our resultsdemonstrate the feasibility of on-chip deterministic quantum spectral controlin constructing hybrid quantum networks.

A Surface Acoustic Wave based Single Photon Shifter for Solid-state Sources