Core Versus Cladding Effects of Proton Irradiation on Erbium-Doped Optical Fiber: Micro-Luminescence Study

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Abstract

Abstract—We compare the visible and infrared luminescence spectra obtained by a green (514.5 nm) and infrared (830 nm) excitation of an erbium-doped fiber before and after irradiation with 105 MeV protons to an equivalent dose of 0.6 kGy(Si). For the irradiated fiber, we measured an increase of the luminescence intensity in this wavelength range due to the generation of additional color centers. Radiation defects such as Ge-NBOHC, Si-NBOHC are generated in both the fiber core and the cladding by the 105 MeV protons. They contribute through their luminescence bands at 1.84 eV (FWHM = 0 2 eV) and 2 eV (0.2 eV) to the fiber emission spectra. Two other pre-existing luminescence bands at 1.75 eV (0.32 eV) and 2.1 eV (0.37 eV), associated to host-matrix-point-defects, are enhanced by proton-irradiation. The Er3+ ions luminescence in both visible and infrared spectral ranges is also affected by the irradiation.

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Original languageEnglish
Pages (from-to)2223-2228
JournalIEEE transactions on nuclear Science
Volume55
Issue number4
DOIs
Publication statusPublished - 19 Sep 2008
Event9th European Conference on Radiation and Its Effects on Components and Systems (RADECS 2007) - Deauville, France
Duration: 10 Sep 200714 Sep 2007

Keywords

  • Erbium-doped optical fiber, luminescence, proton- irradiation-induced effects

ID: 86625