Zhang, Q.
, Takesue, H.
, Nam, S.
, Langrock, C.
, Xie, X.
, Baek, B.
, Fejer, M.
and Yamamoto, Y.
(2008),
Distribution of time-energy entanglement over 100 km fiber using superconducting single-photon detectors, Optics Express, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=33014
(Accessed October 15, 2025)
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Distribution of time-energy entanglement over 100 km fiber using superconducting single-photon detectors
Published
Author(s)
Qiang Zhang, Hiroki Takesue, , Carston Langrock, Xiuping Xie, , Martin M. Fejer, Yoshihisa Yamamoto
Abstract
In this letter, we report an experimental realization of distributing entangled photon pairs over 100 km of dispersion-shifted fiber. In the experiment, we used a periodically poled lithium niobate waveguide to generate the time-energy entanglement and superconducting single-photon detectors to detect the photon pairs after 100 km. We also demonstrate that the distributed photon pairs can still be useful for quantum key distribution and other quantum communication tasks.Citation
Optics Express
Volume
16
Issue
8
Pub Type
Journals
Download Paper
Keywords
entanglement, time-bin, superconducting detectors, sspd, lithium niobate
Citation
Issues
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Created April 13, 2008, Updated October 12, 2021