Title :
Nitrogen-related absorption bands in optical fibres
Author :
Gilliland, J.W. ; Powers, D.R.
Author_Institution :
Corning Glass Works, Corning, USA
Abstract :
Two absorption bands are reported in germanium-doped optical fibres containing low levels of nitrogen. The bands are not present in the fibre as drawn, but can be activated by exposure to elevated temperatures. Germanium, along with nitrogen, plays a role in forming the defects responsible for the absorption.
Keywords :
germanium compounds; impurity and defect absorption spectra of inorganic solids; infrared spectra of inorganic solids; nitrogen; optical fibres; silicon compounds; visible and ultraviolet spectra of inorganic solids; GeO2-SiO2:N fibres; IR spectra; absorption bands; defects; optical fibres; spectral attenuation; visible spectra;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870101
