Quantitative phase and refractive index analysis of optical fibers using differential interference contrast microscopy

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Kouskousis, Betty, Kitcher, Daniel J, Collins, Stephen F, Roberts, Ann and Baxter, Gregory W (2008) Quantitative phase and refractive index analysis of optical fibers using differential interference contrast microscopy. Applied Optics, 28 (47). pp. 5182-5189. ISSN 0003-6935

Abstract

A systematic and straightforward image processing method to extract quantitative phase and refractive index data from weak phase objects is presented, obtained using differential interference contrast (DIC) microscopy. The method is demonstrated on DIC images of optical fibers where a directional integration routine is applied to the DIC images to extract phase and refractive index information using the data obtained across the whole DIC image. By applying the inverse Abel transform to the resultant phase images, an accurate refractive index profile is obtained. The method presented here is compared to the refracted near-field technique, typically used to obtain the refractive index profile of optical fibers, and shows excellent agreement. It is concluded that through careful image processing procedures, DIC microscopy can be successfully implemented to obtain quantitative phase and refractive index information of optical fibers

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Item type Article
URI https://vuir.vu.edu.au/id/eprint/2128
DOI https://doi.org/10.1364/AO.47.005182
Official URL http://www.opticsinfobase.org/abstract.cfm?uri=ao-...
Subjects Current > FOR Classification > 0205 Optical Physics
Historical > SEO Classification > 970108 Expanding Knowledge in the Information and Computing Sciences
Keywords ResPubID: 15951, fiber optics, optical communications, fiber measurements
Citations in Scopus 19 - View on Scopus
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