Radiation tolerant fiber Bragg gratings for high temperature monitoring at MGy dose levels

Morana, Adriana; Girard, Sylvain; Marin, Emmanuel; Marcandella, Claude; Paillet, Philippe; Perisse, J.; Macé, Jean-Reynald; Boukenter, Aziz; Cannas, Marco; Ouerdane, Y.

doi:10.1364/ol.39.005313

Cited by 53 publications

(29 citation statements)

References 11 publications

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“…This is likely associated with thermal relaxation of the bulk glass at these temperatures. As relates to applications, fs-FBGs have recently been tested as temperature sensors for monitoring fluidized bed combustors [2], as well as for radiation resistant temperature sensors [59]. Refractive index modifications are highly localized and involve significant stress-induced changes around the irradiated regions.…”

Section: Femtosecond Fbgs (Type II and Iii Fbgs)mentioning

confidence: 99%

Overview of high temperature fibre Bragg gratings and potential improvement using highly doped aluminosilicate glass optical fibres

et al. 2019

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In this paper, various types of high temperature fibre Bragg gratings (FBGs) are reviewed, including recent results and advancements in the field. The main motivation of this review is to highlight the potential of fabricating thermally stable refractive index contrasts using femtosecond (fs) nearinfrared radiation in fibres fabricated with non-conventional techniques, such as the molten core method. As a demonstration of this, an yttrium aluminosilicate (YAS) core and pure silica cladding glass optical fibre is fabricated and investigated after being irradiated by an fs laser within the Type II regime. The familiar formation of nanogratings inside both core and cladding regions are identified and studied using birefringence measurements and scanning electron microscopy. The thermal stability of the Type II modifications is then investigated through isochronal annealing experiments (up to T=1100°C; time steps, Δt=30 min). For the YAS core composition, the measured birefringence does not decrease when tested up to 1000°C, while for the SiO 2 cladding under the same conditions, its value decreased by ∼30%. These results suggest that inscription of such 'Type II fs-IR' modifications in YAS fibres could be employed to make FBGs with high thermal stability. This opens the door toward the fabrication of a new range of 'FBG host fibres' suitable for ultra-high temperature operation. ORCID iDsMaxime Cavillon https:/ /orcid.org/0000-0003-1341-6294 Peter Dragic https:/ /orcid.org/0000-0002-4413-9130 Figure 5. Normalized retardance (averaged over the 0.1 to 1.0 μJ pulse energy range) as a function of temperature for YAG-derived fibre at the core center (YAS) and in the cladding (SiO 2 ), for both // and ⊥ configurations. The measurements were performed at room temperature.

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Section: Femtosecond Fbgs (Type II and Iii Fbgs)mentioning

confidence: 99%

Overview of high temperature fibre Bragg gratings and potential improvement using highly doped aluminosilicate glass optical fibres

et al. 2019

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“…Fiber-based systems have been exploited for strain [2], temperature [3] or humidity [4] sensing in radiation environments. Various fiber sensing schemes are being investigated, including distributed Rayleigh [3,5], Raman [6] or Brillouin [7] scattering techniques and fiber Bragg gratings or interferometric sensors [8,9]. Moreover, number of optical fiberbased systems has been developed for direct radiation sensing and monitoring [10e12].…”

Section: Introductionmentioning

confidence: 99%

Effects of gamma radiation on perfluorinated polymer optical fibers

et al. 2016

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“…Among the different optical fiber sensing techniques, those based on light scattering are the most investigated: from Fiber Bragg Gratings (FBGs) for discrete measurements [4] to Brillouin [5], Raman [6] [7] and Rayleigh [8] for distributed measurements. The choice of one technique with respect to the others depends on the characteristics and the sensor profile of use.…”

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confidence: 99%

Radiation Characterization of Optical Frequency Domain Reflectometry Fiber-Based Distributed Sensors

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et al. 2016

IEEE Trans. Nucl. Sci.

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We studied the responses of fiber-based temperature and strain sensors related to optical frequency domain reflectometry (OFDR) and exposed to high γ-ray doses up to 10 MGy. Three different commercial fiber classes are used to investigate the evolution of OFDR parameters with dose, thermal treatment and fiber core/cladding composition. We find that the fiber coating is affected by both thermal and radiation treatments and this modification results in an evolution of the internal stress distribution inside the fiber that influences its temperature and strain Rayleigh coefficients. These two environmental parameters introduce a relative error up to 5% on temperature and strain measures. This uncertainty can be reduced down to 0.5% if a prethermal treatment at 80 °C and/or a preirradiation up to 3 MGy are performed before insertion of the fiber in the harsh environment of interest. These preliminary results demonstrate that OFDR fiber-based distributed sensors look as promising devices to be integrated in radiation environments with associated large ionizing doses

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Radiation tolerant fiber Bragg gratings for high temperature monitoring at MGy dose levels

Cited by 53 publications

References 11 publications

Overview of high temperature fibre Bragg gratings and potential improvement using highly doped aluminosilicate glass optical fibres

Overview of high temperature fibre Bragg gratings and potential improvement using highly doped aluminosilicate glass optical fibres

Effects of gamma radiation on perfluorinated polymer optical fibers

Radiation Characterization of Optical Frequency Domain Reflectometry Fiber-Based Distributed Sensors

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