Near‐IR Radiation‐Induced Attenuation of Aluminosilicate Optical Fibers

Alessi, A.; Guttilla, Angela; Agnello, S.; Sabatier, C.; Robin, Thierry; Barnini, Alexandre; Francesca, Diego Di; Vecchi, Gaetano Li; Cannas, Marco; Boukenter, Aziz; Ouerdane, Y.; Girard, Sylvain

doi:10.1002/pssa.202000807

Cited by 12 publications

(6 citation statements)

References 28 publications

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“…For all the investigated power levels, after the irradiation starts, RIA kinetics quickly grow as the dose increases up to %3.3 kGy, where they reach a peak, and then begin to decrease. This behavior, typical of strain-assisted STH (s-a STH) bands at 660 and 760 nm, [15,16] points out an extreme sensitivity to radiations of this OFs class, allowing the RIA to reach magnitudes beyond those already achieved in literature by typical radiation-sensitive OFs, [5] as phosphosilicate and aluminosilicate OFs typically used for dosimetry applications, [17][18][19] usually characterized by a RIA of the order of %10-200 dB km À1 for accumulated doses of about hundreds of Gy.…”

Section: Resultsmentioning

confidence: 66%

Photobleaching Effect on the Radiation‐Induced Attenuation of an Ultralow Loss Optical Fiber at Telecommunication Wavelengths

Campanella

Morana

Michele

et al. 2021

Physica Status Solidi (a)

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Among the various advantages of optical fibers (OFs), low attenuation remains one of the most significant features, especially in the second and third telecom windows (around 0.5 and 0.2 dB km À1 ) at 1.31 and 1.55 μm wavelengths. [1] Ongoing studies are underway to limit as much as possible optical losses to overcome the limitations encountered in the design of telecommunication systems, to transfer information over longer distances (trans-oceanic transmission) without repeaters and/or signal regeneration. To date, the aforementioned attenuation limit, typically referring to commercial germanosilicate OFs (as the Corning SMF-28 and its latest enhanced versions) has been passed by a new generation of ultralow loss (ULL) OFs, whose core is composed essentially of pure silica (PSC-pure-silica core) with a low fluorine codoping. [2] With an appropriate and optimized manufacturing process, this new class of waveguides allows reducing the disorder in the microscopic glass structure and, as a result, the Rayleigh scattering losses that mostly explained the attenuation at Telecom windows. Losses as low as 0.14 dB km À1 at 1550 nm are today achieved. [2] When OFs are integrated in harsh environments associated with radiation constraints (e.g., space applications, fusiondevoted facilities, nuclear waste repositories), new sources of optical losses are added to the fiber intrinsic attenuation. In fact, radiations degrade the signal propagation inside the OF by generating radiation-induced point defects in the silica glass matrix. [3] These defects are associated with different absorption bands peaking in the ultraviolet, visible and infrared domains, reducing the silica transparency. This phenomenon, called radiation-induced attenuation (RIA), then logically depends on the OF intrinsic characteristics (chemical composition, geometry, and manufacturing process), on the environmental constraints (nature of particles, dose, dose rate, and temperature) as well as on the fiber profile of use (probing wavelength, signal power, and temperature). Indeed, all these parameters influence the defect generation efficiency or recovery processes through thermal or photo-assisted processes.From literature, it is known that PSC and F-doped OFs are, in terms of RIA, among the most radiation-resistant waveguides. [3,4] However, a new commercial ULL-PSC OF, the Corning Vascade EX1000, was recently found to be characterized by very high radiation-induced losses (up to a few dB m À1 after kGy dose levels) located in the infrared range of the spectrum. These losses were attributed to the presence of two overlapping absorption bands peaked around 1030 nm (%1.2 eV) and 1330 nm (%0.9 eV),

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Section: Resultsmentioning

confidence: 66%

Photobleaching Effect on the Radiation‐Induced Attenuation of an Ultralow Loss Optical Fiber at Telecommunication Wavelengths

Campanella

Morana

Michele

et al. 2021

Physica Status Solidi (a)

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“…Except for the area around 550 nm to 600 nm, the RIA seems to be almost independent on concentration up to 2.7 %mol, while fiber 5 (4.4 %mol) clearly has a higher sensitivity. This latter result has not been observed on the same type of fibers for infrared measurements under X-rays irradiation [6]. It indicates that doping with a high quantity of aluminum is a way to increase the sensitivity at short (<1160 nm) wavelengths for sensing applications.…”

Section: Ria Spectramentioning

confidence: 76%

Investigation of aluminum doped and aluminum thulium co-doped optical fibers for gamma radiation measurements

Gallet¹,

Caussanel²,

Duval³

et al. 2022

27th International Conference on Optical Fiber Sensors

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“…In this section, we first present the selected optical fiber, then the Monte Carlo simulation set-up used for this work. An important point is that the presented methodology can be adapted to other optical fiber structures such as multimode phosphosilicate optical fibers with larger cores [23] or radiation sensitive aluminosilicate optical fibers [24].…”

Section: Methods and Toolsmentioning

confidence: 99%

Simulation-Assisted Methodology for the Design of Fiber-Based Dosimeters for a Variety of Radiation Environments

Lambert,

Girard,

Santin

et al. 2024

IEEE Trans. Nucl. Sci.

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We present a simulation-assisted methodology for the design of point or distributed fiber dosimeters exploiting the linear dependence of the infrared radiation-induced attenuation of a single-mode phosphosilicate optical fiber. We demonstrate by comparing Monte Carlo simulations and experiments at different irradiation facilities (X-rays, -rays, protons and atmospheric neutrons) that the sensitivity coefficient of this fiber is independent on the nature of particles and on dose rate, at least up to total ionizing doses in the order of 500 Gy. Our simulations allow us to simulate the dose deposited in the fiber core (and then the Radiation Induced Attenuation (RIA) levels) for the different classes of particles (photons, electrons, neutrons, protons and heavy ions) and for different energy ranges. From this data, and knowing the environments of targeted applications for the fiber optic dosimeters, we can discuss the different designs and achievable performance using this fiber. Examples are discussed with space applications, atmospheric balloon experiments and fusion-devoted facilities.

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Near‐IR Radiation‐Induced Attenuation of Aluminosilicate Optical Fibers

Cited by 12 publications

References 28 publications

Photobleaching Effect on the Radiation‐Induced Attenuation of an Ultralow Loss Optical Fiber at Telecommunication Wavelengths

Photobleaching Effect on the Radiation‐Induced Attenuation of an Ultralow Loss Optical Fiber at Telecommunication Wavelengths

Investigation of aluminum doped and aluminum thulium co-doped optical fibers for gamma radiation measurements

Simulation-Assisted Methodology for the Design of Fiber-Based Dosimeters for a Variety of Radiation Environments

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