Integrated quantum photonics (IQP) has evolved from a laboratory curiosity into a practical foundation for metropolitan quantum networks. A major milestone in this field is the development of a heterogeneously integrated superconducting silicon-photonic chip, which combines the mature scalability of silicon-on-insulator (SOI) platforms with the extreme sensitivity of superconducting nanowire single-photon detectors (SNSPDs). 1. Core Architecture and Integration
: These chips are fabricated using standard CMOS industry processes , enabling mass production and large-scale industrialization. Integrated quantum photonics (IQP) has evolved from a
: Researchers have successfully integrated Superconducting Nanowire Single-Photon Detectors (SNSPDs) directly onto silicon waveguides. Integrated quantum photonics (IQP) has evolved from a
: By using a traveling-wave configuration rather than normal incidence, the SNSPDs achieve on-chip detection efficiencies exceeding 90%. Integrated quantum photonics (IQP) has evolved from a
