Programmable quantum photonic interfaces for quantum networking
Phys. Rev. A 114, 032454 – Published 25 September, 2026
DOI: https://doi.org/10.1103/bjfh-nqg1
Abstract
Quantum networks require interfaces that translate memory photons to telecom wavelengths while controlling spatial modes; these tasks are typically performed by separate components. We present a programmable alternative: A structured pump writes a virtual Bragg grating that enables simultaneous spatiospectral conversion and real-time control of emission. Using a whispering-gallery resonator, we predict and numerically validate 93% spatial coupling and bidirectional conversion between 736 and 1347 nm. This reconfigurable interface eliminates cascaded losses and the need for hardware modifications.
Physics Subject Headings (PhySH)
See Also
Broadband spatiospectral mode conversion via four-wave mixing
Phys. Rev. A 114, 032622 (2026)
