Improving OFDR distributed fiber sensing by fibers with enhanced rayleigh backscattering and image processing

Q Wang, K Zhao, M Badar, X Yi, P Lu… - IEEE Sensors …, 2022 - ieeexplore.ieee.org
This article investigates using optical fibers with enhanced backscattering profiles to improve
distributed fiber sensor performance and reduce instrumentation costs. Using a femtosecond …

Low-cost optical fiber based temperature sensor for real-time health monitoring of power transformers

M Badar, YD Su, F Lu, P Lu, M Buric… - Fiber Optic Sensors …, 2021 - spiedigitallibrary.org
Reliable, secure, and resilient electricity distribution requires continuous health monitoring
of electrical assets including power transformers. Among all sensing parameters …

Monolithic ultrashort-cavity DBR gain-switched thulium doped fiber laser made by high-precision femtosecond laser direct-writing

J Shi, L Wei, Y Li, X Feng - Optics & Laser Technology, 2024 - Elsevier
We demonstrate a novel monolithic ultrashort-cavity distributed Bragg reflector (DBR) gain-
switched thulium doped silica fiber laser. Commercial heavily thulium doped non …

Development and pilot-scale demonstration of optical frequency domain reflectometry (OFDR) for gas pipeline monitoring

MM Brister, K Naeem, N Lalam… - … and Laser Sensors …, 2023 - spiedigitallibrary.org
In this paper, we field demonstrate a natural gas pipeline monitoring based on optical
frequency domain reflectometry (OFDR). OFDR can monitor distributed temperature and …

Compact multifunction digital OFDR system without using an auxiliary interferometer

Z Yao, T Mauldin, Z Xu, G Hefferman, T Wei - Applied Optics, 2021 - opg.optica.org
This paper describes an integrated, accurate, and inexpensive semiconductor laser-based
optical frequency domain reflectometry (OFDR) system design. The system utilizes the fiber …

Simulation Analysis of Mode Hopping Impacts on OFDR Sensing Performance

Q Wang, N Lalam, K Zhao, S Zhong, G Zhang, R Wright… - Photonics, 2024 - mdpi.com
This article examines the impacts of mode hopping on the sensing performance of optical
frequency domain reflectometry (OFDR) and explores the potential for developing …

Dual-comb swept-wavelength interferometry: Theory and experiment

E Deriushkina, I Rebolledo-Salgado… - Journal of Lightwave …, 2022 - ieeexplore.ieee.org
Much efforts have been put to elaborate and improve different high precision measurement
schemes for characterization of advanced photonic devices and optical fibers with …

Integrating Textual Analytics with Time Series Forecasting Models: Enhancing Predictive Accuracy in Global Energy and Commodity Markets

J Rao, Q Zhang, Z Ke, S Liu, X Liu - Innovations in Applied …, 2023 - ojs.sgsci.org
This study presents a comprehensive framework for predicting crude oil prices by integrating
textual features extracted from news headlines into a time series forecasting model. The …

Enhancing Financial Forecasting Models with Textual Analysis: A Comparative Study of Decomposition Techniques and Sentiment-Driven Predictions

Q Zhang, J Rao, Z Ke - Innovations in Applied Engineering and …, 2022 - ojs.sgsci.org
Financial time series data are inherently complex, encompassing various components such
as trends, seasonal patterns, and irregular fluctuations. This paper presents a …