M. E. Likhachev, M. M. Bubnov, S. L. Semenov, V. V. Shvetsov, V. F. Khopin, A. N. Gur'yanov, E. M. Dianov, “Mechanisms of optical losses in fibres with a high concentration of germanium dioxide”, Kvantovaya Elektronika, 2003, Volume 33, Number 7,Pages <nobr>633

This article is cited in 8 papers

Special issue devoted to the memory of academician A M Prokhorov

Mechanisms of optical losses in fibres with a high concentration of germanium dioxide

M. E. Likhachev^a, M. M. Bubnov^a, S. L. Semenov^a, V. V. Shvetsov^a, V. F. Khopin^b, A. N. Gur'yanov^b, E. M. Dianov^a

^a Fiber Optics Research Center of the Russian Academy of Sciences, Moscow
^b Institute of Chemistry of High-Purity Substances RAS, Nizhnii Novgorod

Abstract: The mechanisms of optical losses determining the scattering of light in single-mode fibres with a high germanium-dioxide content in a core are investigated. The coefficients of the Rayleigh scattering in fibres with a high level of doping (a molar concentration of GeO₂ of up to 30 %) are measured for the first time. The investigations of the angular distribution of the intensity of light scattered from the fibre have revealed the presence of an additional, anomalous scattering of light besides the Rayleigh scattering. The nature of this phenomenon is discussed.

PACS: 42.81.Cn, 42.81.Dp

Received: 11.12.2002