Anti-Perturbation High-Resolution Compressive Imaging Through Flexible Fibers via Random-Phased Fiber Plates

• DOI: 10.1109/jlt.2025.3527764
• Publication Date: 2025-01-08T20:17:05Z
• Authors: Ronghua Fan; Lijing Li; Tianxuan Feng; Hanyi Zhang; Wei Ke; Siyuan Wang; Rong Fan; Yin Cao; Yue Zheng

The inherent sensitivity to perturbations for the multimode fiber (MMF) has become a major obstacle single MMF-based imaging advancing towards applications. MMF-enabled compressive provides fundamental and elegant solution by employing short MMF as speckle illuminator inherently stable single-mode remaining flexible part. However, existing schemes hardly achieve high resolution, transmittance, minimization robustness at same time. Here, we propose random-phased plate quickly scramble incident light field generate patterns with spatial resolution low correlation. Cascading such plates forms cascaded (CSMMF) enhance this effect while maintaining minimal size transmittance. By connecting multicore (MCF) CSMMF, wavelength position can be variated in hybrid way take full advantage of CSMMF. Experimentally, superiorities CSMMF-generated speckles are demonstrated, providing >0.77 structural similarity >4.81 dB signal-to-noise ratio reconstructing multi-resolution objects. image-reconstruction quality MCF-CSMMF probe (at 5% sampling rate) also testified. This work feasible applicating stringent conditions.