Superconducting quantum chips use semiconductor light-emitting technology to produce a sustained laser beam that drives other silicon photonic devices.
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Optical quantum chips can combine the light-emitting properties of indium phosphide and the optical routing capabilities of silicon into a single hybrid chip. When a voltage is applied to indium phosphide, light enters the waveguide of the silicon chip, producing a continuous laser beam that drives other silicon photonic devices. This silicon wafer-based laser technology could make photonics more widely used in computers, as large-scale silicon-based manufacturing techniques can dramatically reduce costs.