DataVXAdvanced Optical MaterialsPaper
journal article·2024-06

Tapered Optical Fiber Enabled Distributed Sensors with High Spatial Resolution by Deep Learning

Lei Hou, Ting Jiang, Ting Yu, Chuan Cao, Xitao Tu, Ji Zhang, Jing Pan, Shipeng Wang, Ning Zhou, Ni Yao, Lei Zhang

Advanced Optical Materials· Volume 12· Issue 16
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Source abstract

Abstract

Abstract Distributed optical fiber sensing (DOFS) systems are valuable tools for monitoring various physical parameters (e.g., temperature, pressure, strain). DOFS systems, however, remain a challenge for achieving high spatial resolution in narrow spaces due to the bulky external demodulation techniques. Herein, by taking advantage of spatial inhomogeneity‐induced higher‐order modes, a tapered optical fiber‐based distributed sensor is developed to monitor the contact position and force by deep learning simultaneously. The sensor achieves the position and force prediction resolutions of 7.6 µm and 0.02 N, respectively, over the 5.6 mm length by developing a multi‐scale convolutional neural network with a long short‐term memory model to decode the output signals. Furthermore, the sensor can identify position and force in a 2D plane, exhibiting excellent distributed sensing capabilities. The results may pave the way toward high‐performance distributed sensors for applications from healthcare, robotics to human–machine interfaces.
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Research context

OpenAlex topics: Advanced Fiber Optic Sensors · Advanced Sensor and Energy Harvesting Materials · Advanced Fiber Laser Technologies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Research Center for Frontier Fundamental Studies Zhejiang Lab Hangzhou 311121 China

Research Center for Data Hub and Security Zhejiang Lab Hangzhou 311121 China

State Key Laboratory of Extreme Photonics and Instrumentation College of Optical Science and Engineering Zhejiang University Hangzhou 310027 China

ZJU‐Hangzhou Global Scientific and Technological Innovation Center Zhejiang University Hangzhou 311215 China

Research Center for Big Data Intelligence Zhejiang Lab Hangzhou 311121 China

School of Physics and Optoelectronic Engineering Hangzhou Institute for Advanced Study University of Chinese Academy of Sciences Hangzhou 310024 China

Funding

National Natural Science Foundation of China · Natural Science Foundation of Zhejiang Province · Key Research and Development Program of Zhejiang Province

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