TY - JOUR
T1 - Multiplexed quantum frequency conversion
AU - Tang, Chao
AU - Ma, Zhaohui
AU - Li, Zhan
AU - Sua, Yongmeng
AU - Huang, Yu Ping
N1 - Publisher Copyright:
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PY - 2024/10/15
Y1 - 2024/10/15
N2 - We study multiplexed quantum frequency conversion (m-QFC) on a single waveguide, where a single pump beam simultaneously converts multiple signal beams at distinct wavelengths. Using a three-peak periodically poled lithium niobate (PPLN) waveguide, we demonstrate the multiplexed upconversion in the telecom band with internal efficiencies up to 73.6%. Tested with a multichannel photon-pair source, the quantum correlation is preserved well after the conversion, with coincidence-to-accidental ratio reaching 767. These results highlight a viable device approach to multiplexed quantum key distribution, quantum sensing, and quantum computing.
AB - We study multiplexed quantum frequency conversion (m-QFC) on a single waveguide, where a single pump beam simultaneously converts multiple signal beams at distinct wavelengths. Using a three-peak periodically poled lithium niobate (PPLN) waveguide, we demonstrate the multiplexed upconversion in the telecom band with internal efficiencies up to 73.6%. Tested with a multichannel photon-pair source, the quantum correlation is preserved well after the conversion, with coincidence-to-accidental ratio reaching 767. These results highlight a viable device approach to multiplexed quantum key distribution, quantum sensing, and quantum computing.
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U2 - 10.1364/OL.537834
DO - 10.1364/OL.537834
M3 - Article
C2 - 39404525
AN - SCOPUS:85206277912
SN - 0146-9592
VL - 49
SP - 5735
EP - 5738
JO - Optics Letters
JF - Optics Letters
IS - 20
ER -