S. V. Firstov, V. F. Khopin, A. V. Kharakhordin, S. V. Alyshev, K. E. Riumkin, M. A. Mel'kumov, A. M. Khegai, P. F. Kashaykin, A. N. Gur'yanov, E. M. Dianov, “Radiation-induced absorption in bismuth-doped germanosilicate fibres”, Kvantovaya Elektronika, 2017, Volume 47, Number 12,Pages <nobr>1120

This article is cited in 16 papers

Special Issue 'Optical Fibres and Their Applications'

Radiation-induced absorption in bismuth-doped germanosilicate fibres

S. V. Firstov^ab, V. F. Khopin^c, A. V. Kharakhordin^a, S. V. Alyshev^a, K. E. Riumkin^a, M. A. Mel'kumov^a, A. M. Khegai^a, P. F. Kashaykin^a, A. N. Gur'yanov^c, E. M. Dianov^a

^a Fiber Optics Research Center of the Russian Academy of Sciences, Moscow
^b Institute of Physics and Chemistry, Ogarev Mordovia State University, Saransk
^c Institute of Chemistry of High-Purity Substances RAS, Nizhnii Novgorod

Abstract: We have investigated the effect of ionising radiation on the absorption properties of bismuth-doped germanosilicate fibres in the near-IR spectral region. Dynamic dependences of the changes in intensity and structure of the radiation-induced absorption spectra and the kinetics of its relaxation at various temperatures are obtained. A new absorption band is found in the wavelength region of 1.2 μm, which appears in irradiated high-germanium optical fibres doped with bismuth.

Keywords: bismuth, absorption, gamma irradiation, optical fibre, radiation-induced centres.

Received: 15.09.2017
Revised: 08.11.2017