Superconducting Silicon-photonic Chip Developed For Quantum Communication May 2026

Technical Brief: Heterogeneously Integrated Superconducting Silicon-Photonic Chips

: By using a traveling-wave configuration rather than normal incidence, the SNSPDs achieve on-chip detection efficiencies exceeding 90%.

The chip leverages the Silicon-on-Insulator (SOI) platform for its dense optical components, including waveguides, Bragg filters, and ring resonators.

A significant advancement enabled by this chip is the of time-bin encoded qubits.