A review on optical fiber sensors for environmental monitoring

Joe, Hang-Eun; Yun, Huitaek; Jo, Seung Hwan; Jun, Martin B. G.; Min, Byung Kwon

doi:10.1007/s40684-018-0017-6

Cited by 306 publications

(139 citation statements)

References 147 publications

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“…When the grating is illuminated by a broadband optical source, the reflected spectrum presents a sharp peak, which is caused by interference of light with the planes of the grating. Any perturbation on the grating (e.g., external strain or temperature variation) results in a shift in the Bragg wavelength, which can be detected either in the reflected or transmitted spectra [6]. See Figure 1.…”

Section: Fiber Bragg Gratingmentioning

confidence: 99%

“…Some of the parameters that have been monitored with this kind of sensor are strain and temperature [80], displacement [81], refractive index [82], and microbend [83]. The subjacent operating principle of this kind of sensor is the MMI excitation between modes in the MMF section, which can be influenced by external perturbations [84,85], i.e., the fundamental mode that propagates along the SMF will couple into the MMF, exciting many modes, each of which has a different propagation constant [6]. After passing through the multimode section, they reconnect to the SMF.…”

Section: Multimode Fiber Interferometers Sensorsmentioning

confidence: 99%

“…The measurable spatial scope: point sensors, quasi-distributed sensors, and fully distributed sensors [6]. •…”

mentioning

confidence: 99%

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Optical Fiber Temperature Sensors and Their Biomedical Applications

Roriz

Silva

Frazão

et al. 2020

Sensors

136

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The use of sensors in the real world is on the rise, providing information on medical diagnostics for healthcare and improving quality of life. Optical fiber sensors, as a result of their unique properties (small dimensions, capability of multiplexing, chemical inertness, and immunity to electromagnetic fields) have found wide applications, ranging from structural health monitoring to biomedical and point-of-care instrumentation. Furthermore, these sensors usually have good linearity, rapid response for real-time monitoring, and high sensitivity to external perturbations. Optical fiber sensors, thus, present several features that make them extremely attractive for a wide variety of applications, especially biomedical applications. This paper reviews achievements in the area of temperature optical fiber sensors, different configurations of the sensors reported over the last five years, and application of this technology in biomedical applications.

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Section: Fiber Bragg Gratingmentioning

confidence: 99%

Section: Multimode Fiber Interferometers Sensorsmentioning

confidence: 99%

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Optical Fiber Temperature Sensors and Their Biomedical Applications

Roriz

Silva

Frazão

et al. 2020

Sensors

136

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“…Fiber-optic sensing technology has developed rapidly in the past 30 years. It has been widely used in the monitoring of structural health, 2-4 geology, [5][6][7] industrial engineering, 8,9 aircraft, 10,11 environment, 12,13 and so on. 14,15 Due to its advantages, including immunity of electromagnetic interference, capabilities of multiplexing and distributed sensing, and tolerance to harsh environments, fiber-optic sensing technology is a suitable option for the applications in power grids.…”

Section: Introductionmentioning

confidence: 99%

Review on fiber-optic sensing in health monitoring of power grids

et al. 2019

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Fiber-optic sensing technology is best adapted to health monitoring and evaluation of power grids because of its immunity of electromagnetic interference, capabilities of multiplexing and distributed sensing, and tolerance to harsh environments. We review key fiber-optic sensing technologies, including fiber Bragg gratings, fiber-optic interferometers, optical time domain reflectometries, and their applications in three main parts of power grids, transformers, power towers, and overhead transmission lines, during the past 20 years. In particular, optical fiber composite overhead ground wire and optical phase conductor applied in power grids are the areas of great potential to go further. The perspectives of an intelligent fault diagnosis subsystem for power grids based on a fiber-optic sensing network are discussed, and related on-going work is described. The review shall be of benefit to both engineers and researchers in power grids and fiber-optic sensing.

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“…By using diamond films in fiber‐optic sensors we can perform measurements of biological materials that until now have been very difficult and in some cases even impossible to perform. Moreover, fiber‐optic sensors can be designed to operate in extreme environmental conditions, e.g., in the presence of high electromagnetic fields or chemically aggressive substances …”

Section: Introductionmentioning

confidence: 99%

Low‐Coherence Interferometer with Nanocrystalline Diamond Films with Potential Application to Measure Small Biological Samples

Hirsch

Kosowska

Majchrowicz

et al. 2018

Physica Status Solidi (a)

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The study investigates a case of a low‐coherence fiber‐optic Fabry–Pérot interferometer with a nanocrystalline diamond (NCD) mirror. The method of achieving double density of interference fringes is proposed by the application of birefringent material in the cavity of the interferometer. It can be used to reduce sample volume in comparison to conventional interferometers. The use of a biocompatible diamond mirror makes it specifically well suited for application in biosensing. The fabrication process and surface characterization of the nitrogen‐doped NCD and boron‐doped NCD films are described. The results of numerical modeling and experimental measurements are discussed.

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A review on optical fiber sensors for environmental monitoring

Cited by 306 publications

References 147 publications

Optical Fiber Temperature Sensors and Their Biomedical Applications

Optical Fiber Temperature Sensors and Their Biomedical Applications

Review on fiber-optic sensing in health monitoring of power grids

Low‐Coherence Interferometer with Nanocrystalline Diamond Films with Potential Application to Measure Small Biological Samples

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