Title :
Low-loss fibres for wavelengths beyond 1 ¿m
Author :
Zwick, Uri ; Auer, W. ; Riegl, I. ; Haupt, H. ; Heitmann, W.
Author_Institution :
Standard Elektrlk Lorenz AG, Stuttgart, West Germany
Abstract :
Graded-index optical fibres with germanium-boron and with germanium-phosphorus doped silica core have been fabricated. The dependence of the infrared absorption edge on the boron concentration was investigated. For the germanium-phosphorus doped fibre a broad transmission window with losses below 1.5 dB/km between 1500 and 1720 nm was found.
Keywords :
optical fibres; Ge-B doped SiO2 core; Ge-P doped SiO2 core; broad transmission window; doped silica core; experimental results; graded index fibres; losses below 1.5 dB/km; optical fibres; transmission window 1500 to 1720 nm; wavelengths beyond 1 micron;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19790113
