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arXiv · 2509.15770

Noise-tolerant correlated coincidence imaging based on super-correlated light at 1550 nm

Yu Yan·Jiamin Li·Ruikang Li·Yanqiang Guo·Jiang Qiu·Shuangping Han·Zihua Liu·Jianyong Hu·Chengbing Qin·Liantuan Xiao
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Abstract

Single-photon-level imaging at 1550 nm is a key driver for significant advancements in the next-generation laser detection technology. This cutting-edge approach plays a vital role in space ranging, target recognition, and three-dimensional remote sensing. However, it has faced severe challenges such as insufficient noise-tolerant performance. Here, we introduced noise-tolerant correlated coincidence imaging (CCI) based on super-correlated light. The light source, generated through nonlinear interaction between a pulsed laser and a photonic crystal fiber, exhibits a broader power-law photon number probability distribution and extremely strong photon correlation (with second-order correlation function $g^{(2)}(0)$ up to 18,166). Our noise-tolerant CCI can resist random environmental noise up to 100,000 times stronger than the echo signal photons. Super-correlated light offers an exceptionally strong noise tolerance for single-photon-level imaging in extreme environments with intense noise, paving the way for the future development of extremely sensitive light detection.

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Yu Yan, Jiamin Li, Ruikang Li, Yanqiang Guo, Jiang Qiu, Shuangping Han, Zihua Liu, Jianyong Hu, Chengbing Qin, Liantuan Xiao. 2025-09-19. Noise-tolerant correlated coincidence imaging based on super-correlated light at 1550 nm. https://arxiv.org/abs/2509.15770

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