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. Such on-chip optical links may be useful for quantum information or neuromorphic computing applications.
@article{arxiv.1708.07101,
title = {All-silicon light-emitting diodes waveguide-integrated with superconducting single-photon detectors},
author = {Sonia Buckley and Jeffrey Chiles and Adam N. McCaughan and Galan Moody and Kevin L. Silverman and Martin J. Stevens and Richard P. Mirin and Sae Woo Nam and Jeffrey M. Shainline},
journal= {arXiv preprint arXiv:1708.07101},
year = {2017}
}