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Optical Materials Express

Optical Materials Express

  • Editor: David J. Hagan
  • Vol. 3, Iss. 10 — Oct. 1, 2013
  • pp: 1769–1776

Origin of the visible absorption in radiation-resistant optical fibers

A. Morana, M. Cannas, S. Girard, A. Boukenter, L. Vaccaro, J. Périsse, J.-R. Macé, Y. Ouerdane, and R. Boscaino  »View Author Affiliations

Optical Materials Express, Vol. 3, Issue 10, pp. 1769-1776 (2013)

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In this work we investigated the point defects at the origin of the degradation of radiation-tolerant optical fibers used in the visible part of the spectrum for plasma diagnostics in radiation environments. For this aim, the effects of γ-ray irradiation up to the dose of 10 MGy(SiO2) and post-irradiation thermal annealing at 550°C were studied for a Fluorine-doped fiber. An absorption peaking around 2 eV is mainly responsible for the measured radiation-induced losses, its origin being currently debated in the literature. On the basis of the unchanging shape of this band with the radiation dose, its correlation with the 1.9 eV photoluminescent band and the thermal treatment results we assign the asymmetric absorption around 2 eV to an unique defect, the NBOHC, instead of a set of various defects.

© 2013 OSA

OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(250.5230) Optoelectronics : Photoluminescence
(300.1030) Spectroscopy : Absorption
(350.5610) Other areas of optics : Radiation

ToC Category:
Materials for Fiber Optics

Original Manuscript: July 9, 2013
Revised Manuscript: September 2, 2013
Manuscript Accepted: September 11, 2013
Published: September 27, 2013

A. Morana, M. Cannas, S. Girard, A. Boukenter, L. Vaccaro, J. Périsse, J.-R. Macé, Y. Ouerdane, and R. Boscaino, "Origin of the visible absorption in radiation-resistant optical fibers," Opt. Mater. Express 3, 1769-1776 (2013)

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