Intensity-based LPG vibration sensor array using FBG and broadband optical source

Tanaka, Satoshi; Wada, Atsushi; Ikuma, Keisuke; Takahashi, Nobuaki

doi:10.1117/12.968202

Cited by 3 publications

(1 citation statement)

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“…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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