Digital holographic microtomography for geometric parameter measurement of optical fiber

Zhelang Pan; Shiping Li; Jingang Zhong

doi:10.1117/1.OE.52.3.035801

13 March 2013 Digital holographic microtomography for geometric parameter measurement of optical fiber

Zhelang Pan, Shiping Li, Jingang Zhong

Author Affiliations +

Optical Engineering, Vol. 52, Issue 3, 035801 (March 2013). https://doi.org/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.

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Zhelang Pan, Shiping Li, and Jingang Zhong "Digital holographic microtomography for geometric parameter measurement of optical fiber," Optical Engineering 52(3), 035801 (13 March 2013). https://doi.org/10.1117/1.OE.52.3.035801

Published: 13 March 2013

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