Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Quantum teleportation coexisting with classical communications in optical fiber

Journal Article · · Optica

The ability for quantum and conventional networks to operate in the same optical fibers would aid the deployment of quantum network technology on a large scale. Quantum teleportation is a fundamental operation in quantum networking, but has yet to be demonstrated in fibers populated with high-power conventional optical signals. Here we report, to the best of our knowledge, the first demonstration of quantum teleportation over fibers carrying conventional telecommunications traffic. Quantum state transfer is achieved over a 30.2-km fiber carrying 400-Gbps C-band classical traffic with a Bell state measurement performed at the fiber’s midpoint. To protect quantum fidelity from spontaneous Raman scattering noise, we use optimal O-band quantum channels, narrow spectro-temporal filtering, and multi-photon coincidence detection. Fidelity is shown to be well maintained with an elevated C-band launch power of 18.7 dBm for the single-channel 400-Gbps signal, which we project could support multiple classical channels totaling many terabits/s aggregate data rates. These results show the feasibility of advanced quantum and classical network applications operating within a unified fiber infrastructure.

Research Organization:
Euclid Techlabs, Solon; Northwestern U.; Unlisted; Unlisted, US, IL
Sponsoring Organization:
US Department of Energy; USDOE
Grant/Contract Number:
89243024CSC000002; AC02-07CH11359
OSTI ID:
2483375
Alternate ID(s):
OSTI ID: 2468659
Report Number(s):
FERMILAB-PUB-24-0500-V
Journal Information:
Optica, Journal Name: Optica Journal Issue: 12 Vol. 11; ISSN 2334-2536
Publisher:
Optical Society of AmericaCopyright Statement
Country of Publication:
United States
Language:
English

References (56)

Coexistence of multiuser entanglement distribution and classical light in optical fiber network with a semiconductor chip journal June 2024
The quantum internet journal June 2008
Quantum teleportation with independent sources and prior entanglement distribution over a network journal September 2016
Quantum teleportation across a metropolitan fibre network journal September 2016
Hertz-rate metropolitan quantum teleportation journal May 2023
Long distance multiplexed quantum teleportation from a telecom photon to a solid-state qubit journal April 2023
Quantum teleportation with imperfect quantum dots journal January 2021
Entanglement of two quantum memories via fibres over dozens of kilometres journal February 2020
Deployed measurement-device independent quantum key distribution and Bell-state measurements coexisting with standard internet data and networking equipment journal July 2022
Progress in quantum teleportation journal May 2023
Ultra-high bandwidth quantum secured data transmission journal October 2016
Simultaneous quantum cryptographic key distribution and conventional data transmission over installed fibre using wavelength-division multiplexing journal January 1997
Delayed choice for entanglement swapping journal February 2000
Quantum relays for long distance quantum cryptography journal March 2005
Optical networking for quantum key distribution and quantum communications journal October 2009
Feasibility of quantum key distribution through a dense wavelength division multiplexing network journal October 2010
Quantum key distribution and 1 Gbps data encryption over a single fibre journal June 2010
Coexistence of continuous variable QKD with intense DWDM classical channels journal April 2015
Full analysis of multi-photon pair effects in spontaneous parametric down conversion based photonic quantum information processing journal April 2015
Measurement-device-independent quantum key distribution coexisting with classical communication journal July 2019
Teleportation Systems Toward a Quantum Internet journal December 2020
Energy-time entanglement coexisting with fiber-optical communication in the telecom C band journal August 2023
Measurement of the Bell operator and quantum teleportation journal March 1995
Practical decoy-state method in quantum key distribution with a heralded single-photon source journal January 2007
Long-distance copropagation of quantum key distribution and terabit classical optical data channels journal January 2017
Coexistent Quantum Channel Characterization Using Spectrally Resolved Bayesian Quantum Process Tomography journal April 2023
Proposed Experiment to Test Local Hidden-Variable Theories journal October 1969
Measurement of subpicosecond time intervals between two photons by interference journal November 1987
Teleporting an unknown quantum state via dual classical and Einstein-Podolsky-Rosen channels journal March 1993
‘‘Event-ready-detectors’’ Bell experiment via entanglement swapping journal December 1993
Optimal Extraction of Information from Finite Quantum Ensembles journal February 1995
Dense Coding in Experimental Quantum Communication journal June 1996
Quantum Repeaters: The Role of Imperfect Local Operations in Quantum Communication journal December 1998
Distributed Quantum Computation via Optical Fibers journal January 2006
Coexistence of High-Bit-Rate Quantum Key Distribution and Data on Optical Fiber journal November 2012
Interference between independent photons journal January 1986
51.5 Tb/s Capacity over 17,107 km in C+L Bandwidth Using Single-Mode Fibers and Nonlinearity Compensation journal June 2018
Co-Propagation of QKD & 6 Tb/s (60 × 100G) DWDM Channels With ∼17 dBm Total WDM Power in Single and Multi-Span Configurations journal February 2024
Picosecond Synchronization System for the Distribution of Photon Pairs Through a Fiber Link Between Fermilab and Argonne National Laboratories journal August 2023
Robust Multiwavelength All-Fiber Source of Polarization-Entangled Photons With Built-In Analyzer Alignment Signal journal January 2009
Entanglement Distribution in Optical Networks journal May 2015
Quantum Wrapper Networking journal March 2024
Distribution of Fiber-Generated Polarization Entangled Photon-Pairs over 100 km of Standard Fiber in OC-192 WDM Environment conference January 2006
Interference of Single Photons from Separate Sourcesa journal April 1995
Demonstration of a coexistence scheme between polarization-entangled QKD and classical data channels conference April 2016
Quantum internet: A vision for the road ahead journal October 2018
100-km entanglement distribution with coexisting quantum and classical signals in a single fiber journal July 2024
Quantum teleportation over the Swisscom telecommunication network journal January 2007
Generation of polarization entangled photon pairs at telecommunication wavelength using cascaded χ^(2) processes in a periodically poled LiNbO_3 ridge waveguide journal January 2011
Integrating quantum key distribution with classical communications in backbone fiber network journal January 2018
Synchronization and coexistence in quantum networks journal March 2023
Two-mode squeezing over deployed fiber coexisting with conventional communications journal July 2023
Designing noise-robust quantum networks coexisting in the classical fiber infrastructure journal December 2023
Coexistence of quantum key distribution and optical transport network based on standard single-mode fiber at high launch power journal May 2021
Entanglement swapping over 100  km optical fiber with independent entangled photon-pair sources journal October 2017
Hyperentanglement quantum communication over a 50  km noisy fiber channel journal July 2024

Similar Records

Synchronized distribution of quantum entanglement coexisting with high-rate, broadband classical optical communications over a real-world fiber link
Journal Article · Thu Jan 29 19:00:00 EST 2026 · No journal information · OSTI ID:3023411

Designing Noise-Robust Quantum Networks Coexisting in the Classical Fiber Infrastructure
Journal Article · Tue Apr 18 00:00:00 EDT 2023 · TBD · OSTI ID:1973626