Share Email Print
cover

Proceedings Paper • new

Microscopic mechanisms of radiation-induced light attenuation in pure silica-core fibers: influence of heat treatment in the process of metal and polyimide coating application
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Radiation-induced absorption (RIA) of light in the visible spectral region is studied in three differently coated puresilica- core, F-doped-silica cladding optical fibers ("pure-silica fibers", PSFs) drawn from the same preform under γ-irradiation up to 1 kGy, the irradiation temperature being varied in the range ±60 °C. The coating types include aluminum, copper and polyimide. It is found out that the extremum of the temperature dependence of RIA due to strainassisted self-trapped holes (STHs) in Al- and polyimide-coated PSFs is shifted towards higher temperatures (≥+60 °C) as compared to acrylate-coated PSFs, of which the extremum temperature was previously found to be around 0 °C. Additional heat treatment in the process of application of the above coatings is argued not to the main factor influencing RIA, which increases primarily to the very presence of a metal layer on the silica surface. The latter, in turn, increases strain in the silica network and the STH population. Photobleaching of the STH-associated bands and UV-tail produced by the probe white-light halogen lamp under γ-irradiation at a dose of ~1 kGy and dose rate of 1.31 Gy/s is assessed quantitatively to be in the range from 20% to 90%.

Paper Details

Date Published: 16 April 2019
PDF: 7 pages
Proc. SPIE 11029, Micro-structured and Specialty Optical Fibres VI, 110290U (16 April 2019); doi: 10.1117/12.2520428
Show Author Affiliations
Pavel F. Kashaykin, Fiber Optics Research Ctr. (Russian Federation)
Alexander L. Tomashuk, Fiber Optics Research Ctr. (Russian Federation)
Irina S. Azanova, Fiber Optics Research Ctr. (Russian Federation)
Perm Scientific-Industrial Instrument-Making Co. (Russian Federation)
Olga L Vokhmyanina, Fiber Optics Research Ctr. (Russian Federation)
Perm Scientific-Industrial Instrument-Making Co. (Russian Federation)
Tatiana V. Dimakova, Perm Scientific-Industrial Instrument-Making Co. (Russian Federation)
Igor A. Maltsev, Perm Scientific-Industrial Instrument-Making Co. (Russian Federation)
Yulia O. Sharonova, Fiber Optics Research Ctr. (Russian Federation)
Perm Scientific-Industrial Instrument-Making Co. (Russian Federation)
Elena A. Pospelova, Perm Scientific-Industrial Instrument-Making Co. (Russian Federation)
Evgueni M. Dianov, Fiber Optics Research Ctr. (Russian Federation)


Published in SPIE Proceedings Vol. 11029:
Micro-structured and Specialty Optical Fibres VI
Kyriacos Kalli; Alexis Mendez; Pavel Peterka, Editor(s)

© SPIE. Terms of Use
Back to Top