Refractive Index Profiling of Axially-symmetric optical Fibres: A New Technique

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Ampem-Lassen, Eric, Huntington, S. T, Dragomir, Nicoleta, Nugent, K. A and Roberts, A (2005) Refractive Index Profiling of Axially-symmetric optical Fibres: A New Technique. Optics Express, 13 (9). pp. 3277-3282. ISSN 1094-4087

Abstract

We present a new technique for determining the refractive index profiles of axially symmetric optical fibers based on imaging phase gradients introduced into a transmitted optical field by a fiber sample. An image of the phase gradients within the field is obtained using a new non-interferometric technique based on bright field microscopy. This provides sufficient information to reconstruct the refractive index profile using the inverse Abel transform. The technique is robust, rapid and possesses high spatial resolution and we demonstrate its application to the reconstruction of the refractive index profiles of a single-mode and a multimode optical fiber.

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Item type Article
URI https://vuir.vu.edu.au/id/eprint/2689
DOI https://doi.org/10.1364/OPEX.13.003277
Official URL http://www.opticsinfobase.org/view_article.cfm?got...
Keywords ResPubID18586, ResPubID16365, refractive index profiles, optical fibers
Citations in Scopus 62 - View on Scopus
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