Fiber-Optic Strain Sensors Based on Linearly Chirped Tapered Fiber Bragg Gratings With Tailored Intrinsic Chirp

Osuch, Tomasz; Markowski, Konrad; Jędrzejewski, Kazimierz

doi:10.1109/jsen.2016.2601332

Cited by 33 publications

(16 citation statements)

References 14 publications

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“…Osuch et al proposed two novel optical sensors based on the linearly tapered and chirped FBG (TCFBG) inscribed by a UV laser, whose grating period co‐directionally or counter‐directionally inscribed toward taper end. The FBG co‐directionally inscribed could combine the taper‐induced chirp and the grating period chirp, forming a relatively broad reflected spectrum.…”

Section: Smf Grating Sensorsmentioning

confidence: 99%

Novel Fiber Grating for Sensing Applications

Zhang

et al. 2019

Physica Status Solidi (a)

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This review covers some kinds of novel fiber grating and their applications in sensing fields. According to the fiber structures, these novel fiber grating sensors are divided into five types: single mode fiber grating sensors, few-mode fiber grating sensors, multi-core fiber grating sensors, photonic crystal fiber grating sensors, and D-shaped fiber grating sensors. For each kind of fiber grating sensor, both long period fiber grating sensors and fiber Bragg grating sensors are introduced separately, along with their structures, sensing applications, corresponding sensing characteristics, and the advantages and disadvantages in sensing applications.

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Section: Smf Grating Sensorsmentioning

confidence: 99%

Novel Fiber Grating for Sensing Applications

Zhang

et al. 2019

Physica Status Solidi (a)

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“…These structures can be used for separated parameter monitoring [ 6 ], independent strain and temperature measurement [ 5 , 7 , 8 ], dispersion compensation [ 9 , 10 ], or structural health monitoring [ 11 ]. Tapered fibers with CFBG have significantly improved strain sensitivity [ 12 ]. The CFBG sensors can also be used with inexpensive interrogators [ 13 ] and their specially-designed structures can be used as optical filters [ 14 , 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

Overhead Transmission Line Sag Estimation Using a Simple Optomechanical System with Chirped Fiber Bragg Gratings. Part 1: Preliminary Measurements

Wydra

Kisała

Harasim

et al. 2018

Sensors

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A method of measuring the power line wire sag using optical sensors that are insensitive to high electromagnetic fields was proposed. The advantage of this technique is that it is a non-invasive measurement of power line wire elongation using a unique optomechanical system. The proposed method replaces the sag of the power line wire with an extension of the control sample and then an expansion of the attached chirped fiber Bragg grating. This paper presents the results of the first measurements made on real aluminum-conducting steel-reinforced wire, frequently used for power line construction. It has been shown that the proper selection of the CFBG (chirped fiber Bragg grating) transducer and the appropriate choice of optical parameters of such a sensor will allow for high sensitivity of the line wire elongation and sag while reducing the sensitivity to the temperature. It has been shown that with a simple optomechanical system, a non-invasive measurement of the power line wire sag that is insensitive to temperature changes and the influence of high electromagnetic fields can be achieved.

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“…To solve the axial/transverse forces crosstalk in microsurgical instruments, Abushagur built a tapered FBG model to investigate the different responses of FBG and tapered FBG to axial/transverse forces [ 13 ]. In 2006, Osuch proposed a novel tailored intrinsic chirped and tapered FBG sensor [ 14 ]. This sensor, which included chirp enhancement and chirp reduction structures could significantly increase the sensitivity and reduce the influence of F-P resonance formation results from higher elongation of the thinner end of the tapered FBG.…”

Section: Introductionmentioning

confidence: 99%

“…Based on the investigation of the conventional four-cores FBG probes [ 10 ] and tapered FBG sensors [ 11 , 12 , 13 , 14 , 15 , 16 ], a tapered self-assembly four-cores FBG probe is proposed in this paper. This probe is manufactured using four tapered single-core FBGs through the self-assembly technique, so there is no multicore fiber fanouts in the probing system, and the signal transmission loss and cost can be significantly decreased.…”

Section: Introductionmentioning

confidence: 99%

Investigation of a Three-Dimensional Micro-Scale Sensing System Based on a Tapered Self-Assembly Four-Cores Fiber Bragg Grating Probe

Feng

Cui

Sun

et al. 2018

Sensors

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Three-dimensional micro-scale sensors are in high demand in the fields of metrology, precision manufacturing and industry inspection. To extend the minimum measurable dimension and enhance the accuracy, a tapered four-cores fiber Bragg grating (FBG) probe is proposed. The sensing model is built to investigate the micro-scale sensing characteristics of this method and the design of the tapered stylus is found to influence the accuracy. Therefore, a π/2 phase-shift point is introduced into the FBGs comprised in the probe to suppress spectrum distortion and improve accuracy. Then, the manufacturing method based on capillary self-assembly is proposed to form the probe and the critical length to form a square array for four cylindrical fibers is verified to be effective for the tapered fibers. Experimental results indicate that the design of the tapered stylus can extend the minimum measurable dimension by twofold and has nearly no influence on its sensitivity. The three-dimensional measurement repeatability is better than 31.1 nm and the stability is better than 200 nm within once measuring process. Furthermore, the measurement precision of the three-dimensional micro-scale measurement results is less than 150 nm. It would be widely used in measuring micro-scale features for industry inspection or metrology.

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Fiber-Optic Strain Sensors Based on Linearly Chirped Tapered Fiber Bragg Gratings With Tailored Intrinsic Chirp

Cited by 33 publications

References 14 publications

Novel Fiber Grating for Sensing Applications

Novel Fiber Grating for Sensing Applications

Overhead Transmission Line Sag Estimation Using a Simple Optomechanical System with Chirped Fiber Bragg Gratings. Part 1: Preliminary Measurements

Investigation of a Three-Dimensional Micro-Scale Sensing System Based on a Tapered Self-Assembly Four-Cores Fiber Bragg Grating Probe

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