RS-Coded Adaptive Dynamic Network for Reliable Long-Term Information Transmission in Disturbed Multimode Fiber

TL;DR

This paper introduces RRSDN, an adaptive deep learning framework combined with Reed-Solomon coding, enabling reliable, real-time high-fidelity video transmission over disturbed multimode fibers, addressing mode instability and error accumulation.

Contribution

It presents a novel adaptive transmission system integrating error correction with deep residual learning for dynamic multimode fiber channels.

Findings

Achieved zero frame loss in real-time video transmission over 100m MMF.

Demonstrated robustness under environmental disturbances without temperature control.

Integrated error correction coding with neural networks for adaptive optical communication.

Abstract

Multimode fiber (MMF), due to its large core diameter and high mode capacity, holds potential in high-speed communications. However, inherent modal dispersion causes output speckle distortion, and transmission characteristics are sensitive to environmental disturbances, limiting its reliable application. Conventional transmission matrix (TM) methods face challenges such as complex calibration and environmental sensitivity. Although current deep learning approaches demonstrate reconstruction potential, they struggle to overcome error accumulation caused by fiber mode drift and lack sufficient environmental adaptability. To address this, the present study proposes an adaptive transmission framework named Residual Reed-Solomon Dynamic Network (RRSDN), which integrates Reed-Solomon (RS) error correction coding with deep residual learning forming a closed-loop system that jointly optimizes encoding, transmission, and reconstruction, to tackle the key challenges of mode instability and error accumulation in dynamic scattering channels. Experimentally, high-fidelity real-time transmission of a 16*16 pixel video stream (H.265 compressed) with zero frame loss and 100% symbol accuracy was achieved under conditions of a 100-meter MMF with manually applied disturbances and no temperature control. This work proposes a solution for stable optical transmission in complex channels. Plus, it integrates error correction coding with neural network training, laying the foundation for adaptive optical systems in longer-distance and more complex scenarios.