1997•Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIERequires access

Refractive index profiles of polymer optical fiber preforms

Brian K. Canfield, Joshua A. Clearman, Mark G. Kuzyk, Christopher S. Kwiatkowski

Abstract

We report a method for determining the refractive index profile of polymer optical fiber preforms by direct beam deflection measurements. The method is simple to use, compact, and has good resolution. The profile is obtained from the deflection data by numerically integrating the differential ray equation for a radial refractive index gradient. Refractive index profiles of both graded-index (GRIN) and step-index fiber preforms are reported.

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Key concepts: Refractive index, Step-index profile, Normalized frequency (unit), Materials science, Refractive index profile, Optics, Graded-index fiber, Optical fiber