Effects of Electron Irradiation Upon Absorptive and Fluorescent Properties of Some Doped Optical Fibers

Abstract

A review of the recent studies of the effect of irradiating silica-based fibers doped with rare earths and metals by a beam of high-energy (β) electrons is presented. Of the review's main scope are the attenuation spectra' transformations occurring in optical fiber of such types under electron irradiation, allowing, from one side, to recover some general essence of the phenomena involved and, from the other side, to draw the features that would make such fibers useful for applications, for example, in dosimetry and space technologies. Among the fibers of the current review's choice, exemplifying the effect of electron irradiation most brightly, are ytterbium (Yb) and cerium (Ce) (the rare earths' representatives) and bismuth (Bi) (the post-transitional metals representative) doped fibers, where a diversity of the electron-irradiation-related effects is encouraged.

Combined Temperature Radiation Effects and Influence of Drawing Conditions on Phosphorous‐Doped Optical Fibers

“…The understanding of the microscopic structure of point defects and their mechanisms of creation and annihilation is necessary to improve the radiation resistance of the OFs or, vice versa, to exploit their radiation sensitivity in applications such as dosimetry. [1,2] The use of different dopants to adjust the core/cladding refractive indexes has posed the question regarding dopant-related point defects, both native and radiation induced, and the role they could have in the fiber sensitivity to ionizing environments. In this work, we focus on the radiation effects on phosphorous doped optical fibers.…”