Title :
Loss increase in silicone-coated fibres with heat treatment
Author :
Ohmori, Yutaka ; Itoh, Hayato ; Nakahara, Mizuki ; Inagaki, Naoki
Author_Institution :
NTT Ibaraki Electrical Communication Laboratory, Tokai, Japan
Abstract :
Loss-increase characteristics for four kinds of silicone-coated optical fibres with heat treatment have been investigated OH ion absorption loss increase occurs by heat treatment above 250°C, and becomes marked in heat treatment at 500°C for GeO2-doped silica fibres. The others did not exhibit any loss increase at 1.39 ¿m due to OH ions. It was found, from the experiments, that the loss-increase characteristics in heat treatment depend strongly on the glass system in the fibre core.
Keywords :
heat treatment; losses; optical fibres; silicones; 1.39 micron wavelength; OH ion absorption loss; SiO2-Al2O3; SiO2-GeO2; SiO2-P2O5; heat treatment; optical fibres; optical loss; silicone-coated fibres;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19830683
