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Proceedings Paper

Enhanced interferometric methods for investigation of refractive index distribution changes along tapering structure in photonic crystal fibers
Author(s): Leszek R. Jaroszewicz; Małgorzata Kujawińska; Karol Stasiewicz; Bartłomiej Siwicki; Sławomir Wójcik; Paweł Marć
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Paper Abstract

The paper presents the analysis and enhancements of interferometric methods which may provide better quality projections for tomographic, in-line determination of geometry and refractive index distribution changes along classical as well as photonic crystal fiber tapering structure. The method and system provides high optical resolution and sensitivity for determination of refractive index changes. It also provides the possibility of investigation of structures with and without circular symmetry of refractive index distribution. In the paper the interferometric tomography method in Mach-Zehnder interferometer configuration is applied and the measurements of classical and photonics crystal fibers are presented. The analysis of future use of in-line digital holographic method coupled with a variety of techniques for enhanced phase reconstruction is performed.

Paper Details

Date Published: 13 September 2010
PDF: 8 pages
Proc. SPIE 7387, Speckle 2010: Optical Metrology, 73870R (13 September 2010); doi: 10.1117/12.870785
Show Author Affiliations
Leszek R. Jaroszewicz, Military Univ. of Technology (Poland)
Małgorzata Kujawińska, Warsaw Univ. of Technology (Poland)
Karol Stasiewicz, Military Univ. of Technology (Poland)
Bartłomiej Siwicki, Warsaw Univ. of Technology (Poland)
Sławomir Wójcik, Warsaw Univ. of Technology (Poland)
Paweł Marć, Military Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 7387:
Speckle 2010: Optical Metrology
Armando Albertazzi Goncalves Jr.; Guillermo H. Kaufmann, Editor(s)

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