10 August 2001 Modified interferometric method for refractive index profile measurement of multi-elliptical core optical fibers
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Abstract
This paper presents a general interference formula described the interference pattern of multi-elliptical core optical fiber in a transverse interferometer. This formula with Mach- Zehnder interferometry is used to characterize multi- elliptical core optical fiber via its refractive index measurement. A CCD camera for further automatic processing and analysis captures the interference pattern of the output field of the Mach-Zehnder interferometry by the computer-aided system. This study gives possibility to analyze optical properties and possible optical and geometrical microdefects of multi-core optical fiber. Example of application to identical nine-elliptical core optical fiber of thickness 380 micrometer fibers is given.
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Adel M. Sadik, Adel M. Sadik, "Modified interferometric method for refractive index profile measurement of multi-elliptical core optical fibers", Proc. SPIE 4517, Lightmetry: Metrology, Spectroscopy, and Testing Techniques Using Light, (10 August 2001); doi: 10.1117/12.435985; https://doi.org/10.1117/12.435985
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