Trapped Ion Quantum Networking and Telecommunications Coexisting on One Fiber

@misc{wu2026trapped,
  title = {{Trapped Ion Quantum Networking and Telecommunications Coexisting on One Fiber}},
  author = {Denton Wu and Mingzhe Han and Zehao Wang and Ana Luiza Ferrari and Mika A. Zalewski and Yuanheng Xie and Tingjun Chen and Norbert M. Linke},
  howpublished = {arXiv},
  year = {2026},
  month = sep,
  doi = {10.48550/arxiv.2609.06387},
  eprint = {2609.06387},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2609.06387},
}

TY  - UNPB
TI  - Trapped Ion Quantum Networking and Telecommunications Coexisting on One Fiber
AU  - Denton Wu
AU  - Mingzhe Han
AU  - Zehao Wang
AU  - Ana Luiza Ferrari
AU  - Mika A. Zalewski
AU  - Yuanheng Xie
AU  - Tingjun Chen
AU  - Norbert M. Linke
PY  - 2026
DA  - 2026/09/09
PB  - arXiv
DO  - 10.48550/arxiv.2609.06387
UR  - https://arxiv.org/abs/2609.06387
AB  - Research into long-distance quantum memory-based networking to date has exclusively used dark fibers. This avoids the detector background from telecommunications (telecom) traffic, but as a result excludes many fibers deployed in the field. If memory-photon entanglement and telecom signals coexist on one fiber, the entire classical fiber infrastructure becomes available for quantum links. We present the first experimental demonstration of such coexistence. Ion-photon entanglement using 1092 nm photons emitted by a Strontium-88 ion is distributed over a deployed 2.8 km fiber loop which carries Ethernet and 5G traffic. All classical control signals required to coordinate the quantum transmitter and receiver systems co-propagate on the same fiber. These include fiber sensing for polarization stabilization. Our results demonstrate that memory-based quantum networks can be realized on active classical network infrastructure.
ER  -