Influence of high temperatures on optical fibers coated with multilayer protective coatings

Stańczyk, Tomasz; Fidelus, Janusz D.; Wysokiński, Karol I.; Lipiński, Stanisław; Tenderenda, T.; Kuklińska, Małgorzata; Kołakowska, Agnieszka; García, José Rodríguez; Martinez, Inmaculada Canadas; Nasiłowski, Tomasz

doi:10.1117/12.2225437

Cited by 3 publications

(2 citation statements)

References 10 publications

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“…One of them is the necessity to find coatings, packaging and attachment procedures that can withstand such high temperature regimes. This includes the development of specialty coatings (silicone based coatings like polyimide up to 350°C (e.g., [13,14]) in continuous, metallic coatings like Al [15], Cu [16,17], Mo-Cu to 800°C [18], Au to 750°C [19], and packaging in metallic capillaries such as Inconel 600 [20] or steel to 1000°C [19]. An approach to attach these FBG sensors, especially to metallic substrates, is to bond them using high temperature resistant adhesives.…”

Section: Introductionmentioning

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: Introductionmentioning

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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“…Typically, a fiber Bragg grating (FBG) sensor with a metallic coating is used to measure physical quantities, that is, strain and temperature. Generally, the metallic coating has a role of protecting a weak fiber (Li et al, 2009a; Stanczyk et al, 2015) or improving the sensitivity of the sensor (Li et al, 2009b; Lupi et al, 2005; Zhang et al, 2013). Thus, a metal-coated FBG sensor shows superior mechanical properties and sensitivity when compared to those of bare FBG sensors (without an extra coating layer) or polymer-coated FBG sensor.…”

Section: Introductionmentioning

confidence: 99%

Signal characteristics of surface-bonded fiber Bragg grating sensor with elastoplastic metallic coating subjected to residual strain

Kim

2017

Journal of Intelligent Material Systems and Structures

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This study involved predicting the reflected spectrum of a surface-bonded fiber Bragg grating sensor with an elastoplastic metallic coating wherein residual strains are non-uniformly distributed on the sensor. A profile of residual strains was numerically calculated based on the stepwise numerical technique by adopting strain transfer analysis and was validated by finite element analysis. The reflected spectrum of a metal-coated fiber Bragg grating sensor was consequently simulated to obtain the calculated profile of residual strains through the Transfer-matrix (T-matrix) method and coupled mode theory. The results revealed that a non-uniform profile of permanently induced residual strains along the sensor makes the reflected spectrum distorted. Thus, it is necessary for a metal-coated fiber Bragg grating sensor with a 10-mm Bragg grating to be bonded to a minimum length of 16.0 mm to suppress the signal distortion. The study additionally investigated the effect of parameters of an elastoplastic metallic coating (i.e. thicknesses and mechanical properties) on the spectrum characteristics and proposed minimally required bonding lengths by considering these characteristics. The evaluated spectra of the metal-coated fiber Bragg grating sensors that consider various coating parameters will reduce measurement errors and provide directions to determine geometric parameters when the sensor is actually installed on a structure surface.

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Kerr nonlinear effect in the graphene-based wedged hybrid plasmonic waveguide

Rahimi,

Nikoufard,

Firouzabadi

2024

Opt Quant Electron

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Influence of high temperatures on optical fibers coated with multilayer protective coatings

Cited by 3 publications

References 10 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

Signal characteristics of surface-bonded fiber Bragg grating sensor with elastoplastic metallic coating subjected to residual strain

Kerr nonlinear effect in the graphene-based wedged hybrid plasmonic waveguide

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