biostudies-literatureUnknown111(14)We demonstrate cryogenic, electrically injected, waveguide-coupled Si light-emitting diodes (LEDs) operating at 1.22 μm. The active region of the LED consists of W centers implanted in the intrinsic region of a p-i-n diode. The LEDs are integrated on waveguides with superconducting nanowire single-photon detectors (SNSPDs). We demonstrate the scalability of this platform with an LED coupled to eleven SNSPDs in a single integrated photonic device.Applied physics lettershttps://www.ebi.ac.uk/biostudies/studies/S-EPMC9706689biostudies-literatureAll-silicon light-emitting diodes waveguide-integrated with superconducting single-photon detectorsPMC9706689falseAll-silicon light-emitting diodes waveguide-integrated with superconducting single-photon detectorsWe demonstrate cryogenic, electrically injected, waveguide-coupled Si light-emitting diodes (LEDs) operating at 1.22 μm. The active region of the LED consists of W centers implanted in the intrinsic region of a p-i-n diode. The LEDs are integrated on waveguides with superconducting nanowire single-photon detectors (SNSPDs). We demonstrate the scalability of this platform with an LED coupled to eleven SNSPDs in a single integrated photonic device.2017-01-01T00:00:00Z2017 Jan2025-04-05T09:44:10.497Z2025-04-05T09:44:10.497ZS-EPMC9706689