Reference-Beam-Assisted Perturbation-Resistant Imaging Through A Single Multimode Fiber
Abstract
Multimode fiber (MMF) imaging is highly sensitive to mechanical perturbations, which alter modal coupling and disrupt the speckle-to-target mapping. Here, we propose a reference-beam-assisted method for image reconstruction across multiple fiber configurations. An independent reference beam propagates through the same MMF as the imaging signal without target modulation, providing target-independent transmission-state information through its speckle patterns without requiring a separate configuration-sensing structure. A neural network jointly processes the signal and reference speckles to reconstruct target images. Experiments with MNIST and Fashion-MNIST across 10 fiber configurations demonstrate improved reconstruction quality, faster training convergence, and more accurate configuration identification. Further evaluation across 40 configurations confirms the reconstruction benefit of reference-beam assistance over a larger set of perturbed fiber states. These results provide a foundation for developing perturbation-adaptive MMF imaging systems for flexible endoscopy and minimally invasive optical diagnostics.
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BibTeX
@misc{sun2026referencebeamassisted,
title = {{Reference-Beam-Assisted Perturbation-Resistant Imaging Through A Single Multimode Fiber}},
author = {Bowen Sun and Maohan Li and Jingwei Luo and Zhuoren Wan and Zhaoyang Wen and Yuan Chen and Wending Huang and Zijian Wang and Ming Yan and Heping Zeng},
howpublished = {arXiv},
year = {2026},
month = nov,
doi = {10.48550/arxiv.2611.04427},
eprint = {2611.04427},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2611.04427},
note = {CC BY-SA 4.0},
}
RIS
TY - UNPB
TI - Reference-Beam-Assisted Perturbation-Resistant Imaging Through A Single Multimode Fiber
AU - Bowen Sun
AU - Maohan Li
AU - Jingwei Luo
AU - Zhuoren Wan
AU - Zhaoyang Wen
AU - Yuan Chen
AU - Wending Huang
AU - Zijian Wang
AU - Ming Yan
AU - Heping Zeng
PY - 2026
DA - 2026/11/03
PB - arXiv
DO - 10.48550/arxiv.2611.04427
UR - https://arxiv.org/abs/2611.04427
AB - Multimode fiber (MMF) imaging is highly sensitive to mechanical perturbations, which alter modal coupling and disrupt the speckle-to-target mapping. Here, we propose a reference-beam-assisted method for image reconstruction across multiple fiber configurations. An independent reference beam propagates through the same MMF as the imaging signal without target modulation, providing target-independent transmission-state information through its speckle patterns without requiring a separate configuration-sensing structure. A neural network jointly processes the signal and reference speckles to reconstruct target images. Experiments with MNIST and Fashion-MNIST across 10 fiber configurations demonstrate improved reconstruction quality, faster training convergence, and more accurate configuration identification. Further evaluation across 40 configurations confirms the reconstruction benefit of reference-beam assistance over a larger set of perturbed fiber states. These results provide a foundation for developing perturbation-adaptive MMF imaging systems for flexible endoscopy and minimally invasive optical diagnostics.
ER -