Quantum networks require interfaces translating memory photons to telecom wavelengths while controlling spatial modes; tasks performed by separate components today. We present a programmable alternative: a structured pump writes a virtual Bragg grating enabling simultaneous spatio-spectral conversion and real-time controlling of emission. Using a LiNbO3 whispering-gallery resonator, we demonstrate 93\% spatial coupling and bidirectional conversion between 736\,nm and 1347\,nm. This reconfigurable interface eliminates cascaded losses and hardware modifications.
@article{arxiv.2512.10140,
title = {Programmable Quantum Photonic Interfaces for Quantum Networking},
author = {Siavash Mirzaei-Ghormish and Mahmoud Jalali Mehrabad and Helaman Flores and Dirk Englund and Ryan M. Camacho},
journal= {arXiv preprint arXiv:2512.10140},
year = {2025}
}