A. M. Andriesh, E. V. Kulakov, I. P. Kulyak, V. V. Ponomar', A. S. Smirnova, “Optical losses in As–S fibers in the wavelength range 0.8–1.6 μ”, Kvantovaya Elektronika, 1985, Volume 12, Number 9,Pages <nobr>1981

Brief Communications

Optical losses in As–S fibers in the wavelength range 0.8–1.6 μ

A. M. Andriesh, E. V. Kulakov, I. P. Kulyak, V. V. Ponomar', A. S. Smirnova

Abstract: The spectra of the optical losses in fibers were determined in the 0.8–1.6 μ wavelength range. A considerable change in the optical losses was observed under the influence of visible radiation and this was attributed to a photoinduced absorption of light because of a strong interaction of nonequilibrium carriers with localized states in the band gap of a glassy chalcogenide semiconductor. The photoinduced absorption was found to depend on the visible radiation intensity. The optical losses in the fibers made of chalcogenide glasses increased as a result of irradiation with a neutron dose of 10¹⁷ cm^–2 because of the appearance of additional defects which altered the surface state of the fibers.

UDC: 681.7.068.4

PACS: 42.81.Dp, 78.20.Ci

Received: 29.12.1984