A versatile quantum microwave photonic signal processing platform based on coincidence window selection technique

• URL: http://arxiv.org/abs/2407.02787v1
• Date: Wed, 3 Jul 2024 03:26:53 GMT
• Title: A versatile quantum microwave photonic signal processing platform based on coincidence window selection technique
• Authors: Xinghua Li, Yifan Guo, Xiao Xiang, Runai Quan, Mingtao Cao, Ruifang Dong, Tao Liu, Ming Li, Shougang Zhang,
• Abstract summary: Quantum microwave photonics (QMWP) is an innovative approach that combines energy-time entangled biphoton sources as the optical carrier with time-correlated single-photon detection for high-speed RF signal recovery. This paper explores the versatility of processing the quantum microwave photonic signal by utilizing coincidence window selection on the biphoton coincidence distribution.
• Score: 7.502273736671861
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Quantum microwave photonics (QMWP) is an innovative approach that combines energy-time entangled biphoton sources as the optical carrier with time-correlated single-photon detection for high-speed RF signal recovery. This groundbreaking method offers unique advantages such as nonlocal RF signal encoding and robust resistance to dispersion-induced frequency fading. This paper explores the versatility of processing the quantum microwave photonic signal by utilizing coincidence window selection on the biphoton coincidence distribution. The demonstration includes finely-tunable RF phase shifting, flexible multi-tap transversal filtering (with up to 15 taps), and photonically implemented RF mixing, leveraging the nonlocal RF mapping characteristic of QMWP. These accomplishments significantly enhance the capability of microwave photonic systems in processing ultra-weak signals, opening up new possibilities for various applications.

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