Measurement of refractive-index profiles in optical-fibre preforms by spatial-filtering technique
- 13 March 1980
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 16 (6) , 219-221
- https://doi.org/10.1049/el:19800157
Abstract
A nondestructive technique based on spatial filtering is presented for measuring the refractive-index profile in an optical-fibre preform. The method is simple, accurate and has sufficient resolution to enable detailed profiles of single-mode preforms to be obtained.Keywords
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