Multimode fiber speckle sensing

While most Rayleigh based fiber sensors use single mode fiber, multimode fiber has the potential to provide lower noise due to the higher capture fraction of Rayleigh scattered light, higher non-linea...

Deep learning and superoscillatory speckles empowered multimode

This work introduces an in-situ nano-displacement measurement system via a multimode fiber probe with superoscillatory speckles and deep learning.

Anti-perturbation multimode fiber speckle imaging and recognition

Specifically, we propose a speckle imaging model that consists of a lightweight encoder-decoder architecture and a weighted loss function, enabling high-fidelity image transmission through

Researching | High-performance multimode fiber specklegram

【AIGC Short Abstract】： This paper presents a high-performance fiber specklegram sensing method using digital aperture filtering (DAF) to enhance speckle correlation.

Our Latest Research on Multimode Fiber Speckle Sensing Is Now

This study has been part of a long-term effort within our group to understand how speckle patterns —those seemingly random intensity patterns produced by multimode fibers—can be transformed into

The Optimization of Multimode Fiber Speckle Sensor for Microvibration

Fiber specklegram sensors (FSS) are a kind of sensor based on the intermodal interference of multimode optical fibers (MMFs) . When coherent light is incident into a multimode

Speckle-Based Strain Sensing in Multimode Fiber

Here, we show that this diversity of modes can also be used to perform quantitative strain sensing by measuring the amplitude of the Rayleigh backscattered speckle pattern in a multimode fiber.

Event-based Speckle Interrogation for High-Bandwidth Multi-point

In this work, we report an innovative interrogation scheme for speckle-based optical fiber sensors using event-based sensors (EVS) together with a tensor-based methodology capable of separating and

High-performance multimode fiber specklegram sensing with a multi

Fiber specklegram sensors are widely studied for their high sensitivity and compact design. However, as the number of modes in the fiber increased, the speckle sensitivity heightened

Multipoint and Multi-physical Quantity Sensing by Multimode Fiber

A multimode fiber (MMF) speckle sensor based on deep learning is demonstrated for sensing multi-physical quantity at different position. The mode fields at the

Multimode Fiber Specklegram Sensor for Multi-Position Loads

To address this issue, we propose a novel approach to recognize multi-position load using an MMF specklegram sensor, supported by theoretical analysis and experimental verification.