Adaptive Refractive Index Measurements via Polymer Optical Fiber Speckle Pattern Analysis

Theodosiou, Antreas

doi:10.1109/jsen.2023.3330740

Cited by 6 publications

(4 citation statements)

References 25 publications

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“…In most cases, the second group of sensors has been realized in the form of spectral-domain SMS sensor [42]. However, sensor designs utilizing a static wavelength and analyzing the entire speckle pattern have been investigated as well [103].…”

Section: Group A-physical Group B-mentioning

confidence: 99%

“…In recent years, significant attention has been paid to specklegram chemical-and biosensors involving various specialty fibers or standard fiber pre-processing, allowing light interaction with surrounding media. The applications of chemical sensors include salinity sensors [125,126], refractive index sensors [103,[127][128][129][130][131][132], biosensors [133], and even DNA-related sensors [134].…”

Section: Group A-physical Group B-mentioning

confidence: 99%

“…In addition to the prospects described above, the development of the FSS topic could evolve towards the application of various types of specialty multimode fibers that can exhibit new sensing features [56,103,150]. Also, combinations of different signal processing methods (e.g., spectral domain approach and multichannel signal processing with analysis of the entire SP) could provide new measurement capabilities such as enhanced linearity, EFP localization, and multiparameter sensing.…”

Section: Challenges and Future Directionsmentioning

confidence: 99%

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Advances in Optical Fiber Speckle Sensing: A Comprehensive Review

Chapalo,

Stylianou,

Mégret

et al. 2024

Photonics

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Optical fiber sensors have been studied, developed, and already used in the industry for more than 50 years due to their multiplexing capabilities, lightweight design, compact form factors, and electromagnetic field immunity. The scientific community continuously studies new materials, schemes, and architectures aiming to improve existing technologies. Navigating through diverse sensor technologies, including interferometry, intensity variation, nonlinear effects, and grating-based sensors, fiber specklegram sensors (FSSs) emerge as promising alternatives due to their simplicity and low cost. This review paper, emphasizing the potential of FSSs, contributes insights to the present state and future prospects for FSSs, providing a holistic view of advancements propelling FSSs to new frontiers of innovation. Subsequent sections explore recent research, technological trends, and emerging applications, contributing to a deeper understanding of the intricacies shaping the future of FFS sensor technologies.

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Section: Group A-physical Group B-mentioning

confidence: 99%

Section: Group A-physical Group B-mentioning

confidence: 99%

Section: Challenges and Future Directionsmentioning

confidence: 99%

See 1 more Smart Citation

Advances in Optical Fiber Speckle Sensing: A Comprehensive Review

Chapalo,

Stylianou,

Mégret

et al. 2024

Photonics

Self Cite

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show abstract

“…Their adaptability and versatility have spurred researchers to explore diverse technological approaches, each contributing to the continuous advancement of this domain. Various optical fiber sensor technologies have been proposed, leveraging different effects on optical fibers to achieve specific sensing objectives, including interferometry [1]- [4], intensity variation [5]- [7], grating-based sensors [8], [9], and Fiber Specklegram sensors [10]- [12]. This diversity highlights the vast potential of optical fiber sensing, allowing customization to meet different applications' specific needs.…”

Section: Introductionmentioning

confidence: 99%

Highly sensitive refractive index measurement using speckle patterns in perfluorinated polymer optical fiber sensors

Theodosiou

2024

Optical Sensing and Detection VIII

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The pursuit of highly sensitive yet cost-effective technologies has intensified in the realm of optical sensors. This paper presents an innovative approach to refractive index measurement by employing a polished perfluorinated polymer optical fiber sensor. Leveraging the distinct optical properties of speckle patterns formed on the fiber's end-face, this sensor accurately discerns variations in refractive index within its surrounding media. The specific material properties of the fiber render it particularly suited for liquid analysis. The proposed sensors were successfully evaluated for refractive index values up to 1.511, developing robust calibration curves in the process. This research introduces a promising avenue for precise and efficient refractive index measurements, demonstrating the potential of speckle pattern-based perfluorinated polymer optical fiber sensors in diverse applications requiring meticulous liquid analysis.

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