7 May 2015 High-precision confocal reflection measurement for two dimensional refractive index mapping of optical fibers
Author Affiliations +
Abstract
We introduce a new fiber-optical approach for reflection based refractive index mapping. Our approach leads to improved stability and reliability over existing free-space confocal instruments and significantly cuts alignment efforts and reduces the number of components needed. Other than properly cleaved fiber end-faces, this setup requires no additional sample preparation. The instrument is calibrated by means of a set of samples with known refractive indices. The index steps of commercially available fibers are measured accurately down to < 10-3. The precision limit of the instrument is currently of the order of 10-4.
© (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Philippe Raisin, Philippe Raisin, Jonas Scheuner, Jonas Scheuner, Valerio Romano, Valerio Romano, Manuel Ryser, Manuel Ryser, } "High-precision confocal reflection measurement for two dimensional refractive index mapping of optical fibers", Proc. SPIE 9507, Micro-structured and Specialty Optical Fibres IV, 95070O (7 May 2015); doi: 10.1117/12.2180988; https://doi.org/10.1117/12.2180988
PROCEEDINGS
6 PAGES


SHARE
Back to Top