Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Nonlinear Optics

Telecom-Band Entanglement Generation, Storage, and Long-Distance Distribution

Xiaoying Li, Jun Chen, Paul L. Voss, Jay E. Sharping, Prem Kumar

Published Jan 1, 2004• 0 citations
Publisher

Abstract

We present a source of correlated photon-pairs based on four-photon scattering in silica fiber. With this source we have demonstrated the generation, storage, and long-distance distribution of polarization entanglement in standard optical fiber.
DOI
10.1364/nlo.2004.fa1

Related papers

Fiber based entangled photon-pair source

Xiaoying Li, Jun Chen, Kim Fook Lee +3 more

We present a fiber based source of entangled photon-pairs in the 1550 nm telecom band that can be integrated into the existing fiber network and is well suited for quantum information processing. With this source we have demonstrated the generation, storage, and long-distance distribution of polarization entanglement in standard optical fiber. We have also investigated the origin of the large number of accidental coincidences in the experiments, which has been proved to be Raman scattering, and discussed how to suppress the Raman scattering to improve the quality of the fiber source.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE•Jun 9, 2006•0 citations

Broadband source of telecom-band polarization-entangled photon-pairs for wavelength-multiplexed entanglement distribution

Han Chuen Lim, Akio Yoshizawa, Hidemi Tsuchida +1 more

Studies on telecom-band entangled photon-pair sources for entanglement distribution have so far focused on their narrowband operations. Fiber-based sources are seriously limited by spontaneous Raman scattering while sources based on quasi-phase-matched crystals or waveguides are usually narrowband because of long device lengths and/or operations far from degeneracy. An entanglement distributor would have to multiplex many such narrowband sources before entanglement distribution to fully utilize the available fiber transmission bandwidth. In this work, we demonstrate a broadband source of polarization-entangled photon-pairs suitable for wavelength-multiplexed entanglement distribution over optical fiber. We show that our source is potentially capable of simultaneously supporting up to forty-four independent wavelength channels.

Optics Express•Sep 24, 2008•65 citations

Generation and distribution of quantum entanglement in the telecom band with standard optical fiber

X. Li, Paul L. Voss, Jay E. Sharping +2 more

Polarization entangled photon pairs are produced by pumping the nonlinear-fiber Sagnac interferometer with orthogonally-polarized pulses. Parametrically scattered signal-idler photons yield biphoton interference with visibility greater than 95% in coincidence. When signal-idler photon pairs are physically propagated over 25 km of standard optical fiber, the quantum correlation is preserved.

Frontiers in Optics•Jan 1, 2003•1 citation

Telecom-band Hyperentangled Photon Pairs from a Fiber-based Source

Changjia Chen, Calvin Xu, Arash Riazi +6 more

We experimentally demonstrate the generation of telecom-band biphotons hyperentangled in both the polarization and frequency DoFs using a periodically-poled silica fiber and observe entanglement concurrences above 0.95 for both DOFs.

Optical Fiber Communication Conference•Jan 1, 2022•1 citation

Entanglement Generation and Propagation in Optical Fiber

Prem Kumar

Progress on telecom-band in-fiber entanglement generation and long-distance transmission (> 100km) will be described, including generation of entangled photon-pairs at 10GHz pulse rates for WDM operation. Characterization and applications of the distributed entanglement will be discussed.

•Jan 1, 2007•0 citations

Polarization-based entanglement distribution and swapping at telecom wavelengths

Akio Yoshizawa, Yinghong Xue, Han Chuen Lim +1 more

Our research work related to quantum entanglement in the 1550-nm telecom wavelength band is reviewed. We developed a very stable source of high-quality polarization-entangled photon-pairs, which we used to demonstrate both long-distance and broadband fiber-optic entanglement distribution. Polarization-based entanglement swapping experiment was also performed.

Photonics Global Conference•Jan 1, 2010•0 citations
We present a fiber based source of entangled photon-pairs in the 1550 nm telecom band that can be integrated into the existing fiber network and is well suited for quantum information processing. With this source we have demonstrated the generation, storage, and long-distance distribution of polarization entanglement in standard optical fiber. We have also investigated the origin of the large number of accidental coincidences in the experiments, which has been proved to be Raman scattering, and discussed how to suppress the Raman scattering to improve the quality of the fiber source.
Studies on telecom-band entangled photon-pair sources for entanglement distribution have so far focused on their narrowband operations. Fiber-based sources are seriously limited by spontaneous Raman scattering while sources based on quasi-phase-matched crystals or waveguides are usually narrowband because of long device lengths and/or operations far from degeneracy. An entanglement distributor would have to multiplex many such narrowband sources before entanglement distribution to fully utilize the available fiber transmission bandwidth. In this work, we demonstrate a broadband source of polarization-entangled photon-pairs suitable for wavelength-multiplexed entanglement distribution over optical fiber. We show that our source is potentially capable of simultaneously supporting up to forty-four independent wavelength channels.