Temperature and polarization dependence of radiation-induced attenuation in pure-silica-core PANDA optical fiber

Kashaykin, P. F.; Поспелова, Е. А.; Sharonova, Yu.O.; Vokhmyanina, Olga L.; Azanova, I. S.; Томашук, А.Л.

doi:10.1016/j.optmat.2022.112510

Cited by 4 publications

(1 citation statement)

References 45 publications

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“…Tightness, bending and the pattern of the conjugation significantly affected the changes in the refractive indices with distance from the core center. Qualitatively, the refractive index profile corresponds to the cases described in the literature [58,59].…”

Section: Analysis Of the Influence Of Pc Thickness Ratio On Deformati...mentioning

confidence: 87%

Analysis of the Polymer Two-Layer Protective Coating Impact on Panda-Type Optical Fiber under Bending

2022

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The article discusses the effects of thermal-force on the Panda-type optical fiber. The studies used a wide temperature range. The research used two thermal cycles with exposures to temperatures of 23, 60 and −60 °C. The field of residual stresses in the fiber formed during the drawing process was determined and applied. Panda was considered taking into account a two-layer viscoelastic polymer coating under conditions of tension winding on an aluminum coil in the framework of a contact problem. The paper investigated three variants of coil radius to analyze the effect of bending on fiber behavior. The effect of the coating thickness ratio on the system deformation and optical characteristics was analyzed. Qualitative and quantitative patterns of the effect of temperature, bending, thickness of individual polymer coating layers and relaxation transitions of their materials on the Panda optical fiber deformation and optical characteristics were established. Assessment of approaches to the calculation of optical characteristics (values of the refractive indices and fiber birefringence) are given in the framework of the study. The patterns of deformation and optical behavior of the Panda-type fiber with a protective coating, taking into account the nonlinear behavior of the system materials, were original results.

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Section: Analysis Of the Influence Of Pc Thickness Ratio On Deformati...mentioning

confidence: 87%

Analysis of the Polymer Two-Layer Protective Coating Impact on Panda-Type Optical Fiber under Bending

2022

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Optical spectra in pure-silica-core single mode optical fibers after high-fluence reactor irradiation

Kenzhina,

Kashaykin,

Vasiliev

et al. 2024

Nuclear Materials and Energy

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Gamma irradiation of Ge-doped and radiation-hard silica fibers at cryogenic temperatures: Mitigating the radiation-induced attenuation with 1550 and 970 nm photobleaching

Schuyt

Duke

Moseley

et al. 2023

Journal of Applied Physics

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We investigated the effects of gamma irradiation on radiation-induced attenuation (RIA) in photosensitive (Ge-doped) and radiation-hard (F-doped) fibers at cryogenic temperatures (77 K) under different photobleaching conditions. We show that increasing the probe power (1550 nm) and injecting lower wavelength light (970 nm) both resulted in a significant reduction in RIA in both fiber types, where radiation-hard fibers were intrinsically more resistant to the RIA. Deconvolution of RIA growth curves revealed that the RIA was composed of transient and long-term growth components that were correlated with distinct radiation-induced defects specific to each fiber composition. The 1550 nm light more effectively suppressed the transient RIA, while 970 nm more effectively suppressed the long-term RIA. Ultimately, we show that cryogenic RIA may be effectively managed in fiber optic sensing systems using radiation-hard fibers and dual-wavelength photobleaching strategies.

show abstract

Temperature and polarization dependence of radiation-induced attenuation in pure-silica-core PANDA optical fiber

Cited by 4 publications

References 45 publications

Analysis of the Polymer Two-Layer Protective Coating Impact on Panda-Type Optical Fiber under Bending

Analysis of the Polymer Two-Layer Protective Coating Impact on Panda-Type Optical Fiber under Bending

Optical spectra in pure-silica-core single mode optical fibers after high-fluence reactor irradiation

Gamma irradiation of Ge-doped and radiation-hard silica fibers at cryogenic temperatures: Mitigating the radiation-induced attenuation with 1550 and 970 nm photobleaching

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