All optical operation of a superconducting photonic interface
Posted on 2023-09-18 - 18:36
Quantum photonic processing via electro-optic components typically requires electronic links across different operation environments, especially when interfacing cryogenic components such as superconducting single photon detectors with room-temperature control and readout electronics. However, readout and driving electronics can introduce detrimental parasitic effects. Here we show an all-optical control and readout of a superconducting nanowire single photon detector (SNSPD), completely electrically decoupled from room temperature electronics. We provide the operation power for the superconducting detector via a cryogenic photodiode, and readout single photon detection signals via a cryogenic electro-optic modulator in the same cryostat. This method opens the possibility for control and readout of superconducting circuits, and feedforward for photonic quantum computing.
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Thiele, Frederik; Hummel, Thomas; MacCaughan, Adam; Brockmeier, Julian; Protte, Maximilian; Quiring, Viktor; et al. (2023). All optical operation of a superconducting photonic interface. Optica Publishing Group. Collection. https://doi.org/10.6084/m9.figshare.c.6809571.v2
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