Measurement of refractive-index profiles in optical-fibre preforms by spatial-filtering technique

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© The Institution of Electrical Engineers
Published 21/07/2012

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.

Inspec keywords: quality control; optical fibres; nondestructive testing

Other keywords: NDT; nondestructive technique; optical fibres; single mode preforms; spatial filtering technique; refractive index profiles measurement; optical fibre preforms

Subjects: Optoelectronics manufacturing; Fibre optics and fibre waveguides; Optical waveguides and couplers; Testing; Inspection and quality control; Fibre optics; Inspection and quality control

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