13 March 2013 Digital holographic microtomography for geometric parameter measurement of optical fiber
Author Affiliations +
Optical Engineering, 52(3), 035801 (2013). doi:10.1117/1.OE.52.3.035801
Abstract
We report the experimental results of geometric parameter measurement of the single-mode fiber by use of digital holographic microtomography technology. Tomography of the single-mode fiber is performed by a filtered back-projection algorithm and a Fourier diffraction algorithm, respectively, to reconstruct the three-dimensional (3-D) map of refractive index. According to this map, we can further get the dimensions of the single-mode fiber by the relate edge detection algorithm of image processing. Experimental results show that compared to the filtered back-projection reconstruction, diffraction tomography based on the Rytov approximation resembles the dimensions of the single-mode fiber. It provides a new way for the nondestructive and on-site measurement of tiny weakly diffracting objects with a cylindrically symmetric structure, such as the single-mode fiber.
© 2013 Society of Photo-Optical Instrumentation Engineers (SPIE)
Zhelang Pan, Shiping Li, Jingang Zhong, "Digital holographic microtomography for geometric parameter measurement of optical fiber," Optical Engineering 52(3), 035801 (13 March 2013). http://dx.doi.org/10.1117/1.OE.52.3.035801
JOURNAL ARTICLE
8 PAGES


SHARE
KEYWORDS
Digital holography

Holography

Reconstruction algorithms

3D image reconstruction

Diffraction

Tomography

3D image processing

Back to Top