Picosecond Synchronization System for the Distribution of Photon Pairs Through a Fiber Link Between Fermilab and Argonne National Laboratories
- Resource Type
- Periodical
- Authors
- Kapoor, K.; Xie, S.; Chung, J.; Valivarthi, R.; Pena, C.; Narvaez, L.; Sinclair, N.; Allmaras, J.P.; Beyer, A.D.; Davis, S.I.; Fabre, G.; Iskander, G.; Kanter, G.S.; Kettimuthu, R.; Korzh, B.; Kumar, P.; Lauk, N.; Mueller, A.; Shaw, M.; Spentzouris, P.; Spiropulu, M.; Thomas, J.M.; Wollman, E.E.
- Source
- IEEE Journal of Quantum Electronics IEEE J. Quantum Electron. Quantum Electronics, IEEE Journal of. 59(4):1-7 Aug, 2023
- Subject
- Engineered Materials, Dielectrics and Plasmas
Photonics and Electrooptics
Photonics
Clocks
Optical fiber networks
Optical fiber amplifiers
Laboratories
Raman scattering
Optical switches
Quantum network
quantum communication
quantum-classical coexisting
clock distribution
fiber optics
photon pair
C-band
L-band
O-band
Raman noise
- Language
- ISSN
- 0018-9197
1558-1713
We demonstrate a three-node quantum network for C-band photon pairs using 2 pairs of 59 km of deployed fiber between Fermi and Argonne National Laboratories. The C-band pairs are directed to nodes using a standard telecommunication switch and the detection system is synchronized to picosecond-scale timing resolution using a coexisting O- or L-band optical clock distribution system. We measure a reduction of coincidence-to-accidental ratio (CAR) of the C-band pairs from 51 ± 2 to 5.3 ± 0.4 due to Raman scattering of the O-band clock pulses. Despite this reduction, the CAR is nevertheless suitable for quantum networks.