Two-photon Comb with Wavelength Conversion for Long-distance Quantum Communication

Kazuya Niizeki; Daisuke Yoshida; Ko Ito; Ippei Nakamura; Ippei Nakamura; Nobuyuki Takei; Kotaro Okamura; Ming-Yang Zheng; Xiu-Ping Xie; Tomoyuki Horikiri; Tomoyuki Horikiri

doi:10.1364/CLEOPR.2020.C12C_2

14th Pacific Rim Conference on Lasers and Electro-Optics (CLEO PR 2020)
OSA Technical Digest (Optica Publishing Group, 2020),
paper C12C_2
•https://doi.org/10.1364/CLEOPR.2020.C12C_2

Two-photon Comb with Wavelength Conversion for Long-distance Quantum Communication

Kazuya Niizeki, Daisuke Yoshida, Ko Ito, Ippei Nakamura, Nobuyuki Takei, Kotaro Okamura, Ming-Yang Zheng, Xiu-Ping Xie, and Tomoyuki Horikiri

Conference on Lasers and Electro-Optics/Pacific Rim 2020

Sydney Australia
3–5 August 2020
ISBN: 978-0-646-82504-5

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Quantum Communications (C12C)

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K. Niizeki, D. Yoshida, K. Ito, I. Nakamura, N. Takei, K. Okamura, M. Zheng, X. Xie, and T. Horikiri, "Two-photon Comb with Wavelength Conversion for Long-distance Quantum Communication," in 14th Pacific Rim Conference on Lasers and Electro-Optics (CLEO PR 2020), OSA Technical Digest (Optica Publishing Group, 2020), paper C12C_2.

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Abstract

We demonstrate two-photon comb (TPC) technique and wavelength conversion. TPC consists of telecom entangled photon pairs with narrow linewidth and two-photon coincidence after conversion was observed. 20-km distribution was also achieved aiming at quantum internet.

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