High sensitivity distributed temperature fiber sensor using stimulated Brillouin scattering

Iezzi, Victor Lambin; Loranger, Sébastien; Kashyap, Raman

doi:10.1364/oe.25.032591

Cited by 30 publications

(14 citation statements)

References 15 publications

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“…2. The singular matrices U x and V x are used in Equation (10). The matrix ∑ x has two significant components such as 𝜎 1 and a noisy component 𝜎 2 ; 𝜎 1 consists of a prominent part of the signal and hence it is left unaltered [29,30] (k+1) is obtained.…”

Section: Numerical Simulation and Resultsmentioning

confidence: 99%

“…Another advantage of the distributed fibre sensor is that it can extract the parameter information of many points continuously along the fibre under test depending on spatial resolution of the sensor. The distributed fibre-optic sensors are designed based on scattering of light mechanism such as Rayleigh [8], Raman [9] and Brillouin [10][11][12]. In Raman as well as Brillouin scattering process, a frequency difference between the incident light signal and the backscattered signal is present, whereas no difference in Rayleigh scattering.…”

Section: Introductionmentioning

confidence: 99%

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Sensing accuracy enhancement of long‐range distributed fibre‐optic temperature sensor using hybrid algorithm

Pradhan

2021

IET Science Measure & Tech

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This paper presents a long-range distributed fibre-optic temperature sensor with high sensing accuracy to monitor temperature using Brillouin scattering mechanism. Fourier deconvolution, Fourier wavelet regularised deconvolution, dichotomised singular value decomposition and hybrid algorithms were employed to measure the temperature of proposed sensor. Optical time domain reflectometry technique is used to extract the temperature profile for 70, 60 and 50 km sensing ranges. The improvement of temperature accuracy using hybrid algorithm is achieved for 70 km sensing distance. In order to extract temperature information, the numerical simulation process has been incorporated in the proposed long-range sensing system. Moreover, the temperature accuracy of the proposed system is obtained using Fourier deconvolution, Fourier wavelet regularised deconvolution, dichotomised singular value decomposition and hybrid algorithms for 70, 60 and 50 km sensing ranges. The simulation results show that the temperature accuracy is observed as 4.8 • K using hybrid algorithm compared to Fourier deconvolution algorithm that shows temperature accuracy as 14 • K at 70 km. In the proposed sensor, a spatial resolution of 20 m is observed for a sensing range of 70 km using hybrid algorithm. In addition, the denoising competence of the proposed hybrid algorithm is validated using 50 km optical time domain reflectometry backscattered trace observed experimentally. Further, a peak dynamic range improvement of optical time domain reflectometry backscattered trace as 3.91 dB is observed using hybrid algorithm.

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Section: Numerical Simulation and Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sensing accuracy enhancement of long‐range distributed fibre‐optic temperature sensor using hybrid algorithm

Pradhan

2021

IET Science Measure & Tech

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“…The direct CVD synthesis of CsPbI 3 nanocrystals on flexible PDMS can facilitate the dry transfer of specifically selected CsPbI 3 nanocrystals onto pre-designed structures. For example, placement of a CsPbI 3 NP nanolaser on the end of the fiber can enable a perfect fiber optic solution for high-sensitivity sensors and high-resolution imaging [34][35][36]. To demonstrate the feasibility and ease of this, we transferred a CsPbI 3 NP onto the core of a fiber and showed lasing from the NP.…”

Section: Deterministic Transfer Of the Cspbi 3 Npsmentioning

confidence: 99%

“…Thus, we showed how a nanoscale single-mode CsPbI 3 NP laser could be integrated with fiber optics. This kind of single mode fiber laser with gain medium on top may potentially enable higher performance in fiber communication, high sensitivity sensors and high resolution imaging [34][35][36].…”

Section: Cspbi 3 Np Lasing At a Fiber Endmentioning

confidence: 99%

Direct synthesis of high-quality perovskite nanocrystals on a flexible substrate and deterministic transfer

et al. 2018

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“…For each category, various distributed sensing techniques have been proposed, including Brillouin optical time-domain analysis/reflectometry (BOTDA/R) [1][2][3][4], Brillouin optical frequency-domain analysis/reflectometry (BOFDA/R) [5][6][7][8], and Brillouin optical correlation domain analysis/reflectometry (BOCDA/R) [9][10][11][12][13]. Furthermore, great research efforts have been devoted to further extend the application fields of these techniques through recently achieved enhanced performance in each of its critical dimensions: measurement range has been extended to hundreds of kilometers [14,15]; spatial resolution is of the order of a few millimeters [16][17][18][19]; dynamic events can be captured at sampling rates as high as MHz [20,21]; temperature/strain sensitivity has been enhanced by a factor of six by exploiting the high-order Stokes waves [22,23].…”

Section: Introductionmentioning

confidence: 99%

Slope-Assisted Brillouin-Based Distributed Fiber-Optic Sensing Techniques

Fan¹,

Wang²,

Yang³

et al. 2021

Adv Devices Instrum

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Brillouin-based fiber-optic sensing has been regarded as a powerful distributed measurement tool for monitoring the conditions of modern large civil and geotechnical structures, since it provides continuous environmental information (e.g., temperature and strain) along the whole fiber used for sensing applications. In the past few decades, great research efforts were devoted to improve its performance in terms of measurement range, spatial resolution, measurement speed, sensitivity, and cost-effectiveness, of which the slope-assisted measurement scheme, achieved by exploiting the linear slope of the Brillouin gain spectrum (BGS), have paved the way for dynamic distributed fiber-optic sensing. In this article, slope-assisted Brillouin-based distributed fiber-optic sensing techniques demonstrated in the past few years will be reviewed, including the slope-assisted Brillouin optical time-domain analysis/reflectometry (SA-BOTDA/SA-BOTDR), the slope-assisted Brillouin dynamic grating (BDG) sensor, and the slope-assisted Brillouin optical correlation domain analysis/reflectometry (SA-BOCDA/SA-BOCDR). Avenues for future research and development of slope-assisted Brillouin-based fiber-optic sensors are also prospected.

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High sensitivity distributed temperature fiber sensor using stimulated Brillouin scattering

Cited by 30 publications

References 15 publications

Sensing accuracy enhancement of long‐range distributed fibre‐optic temperature sensor using hybrid algorithm

Sensing accuracy enhancement of long‐range distributed fibre‐optic temperature sensor using hybrid algorithm

Direct synthesis of high-quality perovskite nanocrystals on a flexible substrate and deterministic transfer

Slope-Assisted Brillouin-Based Distributed Fiber-Optic Sensing Techniques

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