Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Ultraviolet-excited fluorescence in optical fibers and preforms

Not Accessible

Your library or personal account may give you access

Abstract

A new and nondestructive method is described to measure the refractive-index profile of GeO2-doped optical fibers and preforms within seconds and with accuracy comparable with the best existing techniques. The method is based on the fact that germanium-doped optical fibers and preforms fluoresce at a wavelength near 420 nm when excited by UV radiation below 350 nm. The GeO2-absorptiog spectrum, measured by utilizing a preform slab-sample illuminated with a deuterium lamp coupled to a grating monochromator, exhibits a relatively broad absorption curve centered at 240 nm with a tail extending to nearly 380 nm. The proportionality of fluorescent intensity to dopant concentration arm hence to the index difference has been established for the GeO2-SiO2 binary system by measurements made on preforms with the arrangement shown in Fig. 1.

© 1981 Optical Society of America

PDF Article
More Like This
Effect of fluorine and phosphorus on the UV-excited fluorescence in germania-doped silica optical fiber preforms

H. T. SHANG, D. L. PHILEN, and P. F. GLODIS
TuL27 Optical Fiber Communication Conference (OFC) 1986

Analysis of the fluorescence method of profiling single-mode optical fiber preforms

D. L. Philen and W. T. Anderson
ThEE7 Optical Fiber Communication Conference (OFC) 1982

Reduction of hydroxyl contamination in optical fiber preforms

K. L. Walker, J. B. Macchesney, and J. R. Simpson
WA4 Optical Fiber Communication Conference (OFC) 1981

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved