Review
Engineering, Electrical & Electronic
Fufei Pang, Lina Xiang, Huanhuan Liu, Liang Zhang, Jianxiang Wen, Xianglong Zeng, Tingyun Wang
Summary: Vortex beams with phase or polarization singularity in their center part have unique features and applications in fields such as optical communication and optical tweezer. Compared to traditional Gaussian beams, vortex beams offer more freedom in optical sensing by controlling spin, orbital phase, and polarization. This review discusses the theory of polarization and phase vortices, as well as the generation of vortex beams in optical fiber and their sensing applications, aiming to inspire further research and development in fiber vortex for sensing applications.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Shaoyi Chen, Kun Zhu, Jun Han, Qi Sui, Zhaohui Li
Summary: This article presents work on coastal event monitoring using photonic integrated sensing and communication technology with submarine telecommunication optical cables. The study highlights ocean wave analysis, earthquake detection, and marine ferry monitoring. The proposed integrated system successfully observed ocean waves, microseisms, earthquakes, and vessel sailing activities, opening up new opportunities for future research in ocean science and marine engineering.
IEEE COMMUNICATIONS MAGAZINE
(2022)
Article
Engineering, Electrical & Electronic
Francesco Chiavaioli, Davide Janner
Summary: This review focuses on recent advances in lossy more resonance (LMR) fiber optic sensors, comparing them with surface plasmon resonance (SPR). Key parameters include geometrical configuration and supporting material. Sensing mechanisms are primarily based on refractometry, with applications ranging from electric field to pressure sensors and gas detection to biosensors, confirming the potential of LMR sensors for sensor development.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Matej Njegovec, Vedran Budinski, Boris Macuh, Denis Donlagic
Summary: Corrosion-induced optical fiber microbending is demonstrated as an efficient method for designing sensors that can detect and locate corrosion events on metal surfaces. The proposed sensors have been successfully applied to both bare metal surfaces and surfaces covered with corrosion-protective coatings, and they possess the simplicity in design and manufacturing, reliable corrosion detection, and accurate corrosion localization.
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT
(2022)
Article
Engineering, Electrical & Electronic
Pablo D. Hernandez, Jaime A. Ramirez, Marcelo A. Soto
Summary: This paper proposes deep learning models trained with real seismic data to detect earthquakes in fiber-optic distributed acoustic sensor (DAS) measurements. The models successfully extract relevant features of earthquakes from traditional broadband seismometer data. Despite intrinsic differences and labeling errors in DAS data, the models still achieve high accuracy.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Radhika K. Poduval, Joanna M. Coote, Charles A. Mosse, Malcolm C. Finlay, Adrien E. Desjardins, Ioannis Papakonstantinou
Summary: A novel technique for constructing microscale extrinsic fiber-optic sensors capable of simultaneously measuring pressure and temperature with sensitivity values suited to intravascular physiological monitoring has been presented. The precision-fabricated photoresist microstructure enables a wide range of fiber-optic sensors for guiding minimally invasive medical procedures.
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
(2021)
Article
Optics
Ke Chen, Ran An, Chenxi Li, Yuan Kang, Fengxiang Ma, Xinyu Zhao, Min Guo, Hongchao Qi, Jikuan Zhao
Summary: A photoacoustic gas detection system based on ultra-high sensitive fiber-optic acoustic sensing technique was designed to detect ultra-low concentration acetylene in transformer oil. By utilizing an erbium-doped fiber amplifier and a cantilever based fiber-optic acoustic sensor, the interference of carbon dioxide and water vapor on the acetylene absorption signal was reduced. Experimental results showed a response time of 9 minutes and a detection limit of 0.05 mu L/L.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Zhihong Li, Xianxin Yang, Haiyong Zhu, Francesco Chiavaioli
Summary: The deposition of high refractive index nanocoatings is a powerful technique for enhancing light-matter interaction in fiber optic devices, although it can also lead to reduced sensitivity in certain cases. This study on nanocoated tilted fiber Bragg gratings reveals that nanocoatings can enhance polarization-dependent sensing performance through tuning polarized dispersion properties. P-polarization shows higher sensitivity to bulk refractive index changes, while S-polarization is more sensitive to surface changes, providing options for different refractometric sensing applications.
IEEE SENSORS JOURNAL
(2021)
Article
Chemistry, Analytical
Aida Amantayeva, Nargiz Adilzhanova, Aizhan Issatayeva, Wilfried Blanc, Carlo Molardi, Daniele Tosi
Summary: A guidance system based on a network of fiber optic distributed sensors has been developed for epidural anesthesia, allowing real-time reconstruction of the epidural device silhouette and identification of bending patterns typical in epidural insertions to support the operator.
Review
Chemistry, Analytical
Ignacio Vitoria, Carlos Ruiz Zamarreno, Aritz Ozcariz, Ignacio R. Matias
Summary: Urban pollution leads to the increasing demand for gas sensors for air quality control and monitoring, while optical fiber gas sensors are being widely used in remote, confined, hostile, corrosive, or explosive environments.
Article
Engineering, Electrical & Electronic
Xinran Wei, Rui Li, Yuzhang Liang, Shuwen Chu, Xin Zhang, Yurui Fang, Wei Peng
Summary: This study develops and theoretically demonstrates an efficient alternative method for achieving SPR on a flat gold film on the end facet of an optical fiber through diffracting coupling of a nanograting. The operating wavelength of the SPR can be adjusted continuously over a broad spectral range from visible to near-infrared light. The sensing performances of the proposed nanograting-coupled FOSPR sensors with different specified resonance wavelengths are numerically investigated, and the highest bulk refractive index sensitivity is obtained at the operating wavelength of 1550 nm. The proposed sensing platform can extend the utility of FOSPR sensing technology in practical application fields such as disease diagnosis and environment monitoring due to the ease of wavelength adjustment and compact integration on the end facet.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Engineering, Electrical & Electronic
Weizong Zheng, Mingyue Wang, Yingxuan Liu, Caihong Cheng, Ya-nan Zhang
Summary: A method for preparing PDMS-based fiber structure and its performance for VOC gas sensing were reported in this paper. The sensor demonstrated good sensitivity and excellent characteristics.
OPTICAL FIBER TECHNOLOGY
(2024)
Article
Engineering, Electrical & Electronic
Zhenshi Sun, Kun Liu, Tianhua Xu, Yingzhao Xu, Weiwei Fang, Kang Xue, Yuelang Huang, Sichen Li, Tiegen Liu
Summary: An effective and scalable feature engineering method using vibration time-frequency imaging and deep learning has been proposed in this study, showing higher accuracy and efficiency in intelligent sensing analysis for fiber-optic vibration-sensing applications.
IEEE SENSORS JOURNAL
(2022)
Review
Chemistry, Analytical
Jose Rafael Guzman-Sepulveda, Rafael Guzman-Cabrera, Arturo Alberto Castillo-Guzman
Summary: This review focuses on fiber-based multimode interference (MMI) devices for sensing applications, particularly for nonconventional physical variables, covering mechanical, electromagnetic, chemical, and optical aspects, with around fifteen years of work in the field. Additionally, new trends of MMI-based schemes involving polymer fibers for wavelength-locking applications, retrieving the thermo-optic coefficient of liquid samples, and measuring the dynamics of complex fluids are also reviewed at the end of the paper.
Article
Engineering, Multidisciplinary
Xuehui Zhang, Wout Broere
Summary: This paper discusses the metrics of optimal sensing fiber selection for point-displacement measuring and presents calibration tests for verification of the optical fiber properties. The study shows that pretensioning of the fiber helps to reduce measurement errors.
Article
Materials Science, Multidisciplinary
Neena Prasad, V. M. M. Saipavitra, Hariharan Swaminathan, Pandiyarajan Thangaraj, Mangalaraja Ramalinga Viswanathan, Karthikeyan Balasubramanian
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2016)
Article
Spectroscopy
Neena Prasad, Karthikeyan Balasubramanian
JOURNAL OF RAMAN SPECTROSCOPY
(2016)
Article
Engineering, Electrical & Electronic
Morget Martin, Neena Prasad, Muthu Mariappan Sivalingam, D. Sastikumar, Balasubramanian Karthikeyan
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2018)
Article
Spectroscopy
Neena Prasad, Karthikeyan Balasubramanian
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2017)
Article
Materials Science, Multidisciplinary
Neena Prasad, Balasubramanian Karthikeyan
Article
Materials Science, Multidisciplinary
Neena Prasad, Balasubramanian Karthikeyan
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2018)
Article
Physics, Applied
Neena Prasad, Karthikeyan Balasubramanian
JOURNAL OF APPLIED PHYSICS
(2018)
Article
Chemistry, Physical
Neena Prasad, Balasubramanian Karthikeyan
JOURNAL OF PHYSICAL CHEMISTRY C
(2018)
Article
Physics, Applied
Neena Prasad, Balasubramanian Karthikeyan
JOURNAL OF APPLIED PHYSICS
(2019)
Article
Chemistry, Physical
Jit Sarkar, Shankar G. Menon, N. Prasad, B. Karthikeyan, N. Kamaraju
JOURNAL OF PHYSICAL CHEMISTRY C
(2019)
Article
Nanoscience & Nanotechnology
Neena Prasad, Balasubramanian Karthikeyan
Article
Chemistry, Physical
Ranjith P. Kumar, Neena Prasad, Fabien Veillon, Wilfrid Prellier
Summary: In this study, pure and 5 mol% Eu doped nickel oxide nanoparticles were successfully synthesized using microwave-assisted hydrothermal method. The Eu doping increased hole concentration and defects in the nanoparticles, enhancing the ferromagnetic behavior while reducing antiferromagnetic coupling. This study demonstrates the potential of Eu-doped NiO nanoparticles for magnetic applications in spintronics.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Multidisciplinary
Neena Prasad, Balasubramanian Karthikeyan
