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Volume 26 - ICOP & ICPET 2020
ICOP & ICPET _ INPC _ ICOFS 2020, 26 - ICOP & ICPET 2020: 589-592 |
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Jafarfard M R, Gerami fard N. Derivation of the refractive index profile of optical fibers from the phase image using inverse Radon transformation. ICOP & ICPET _ INPC _ ICOFS 2020; 26 :589-592
URL: http://opsi.ir/article-1-2126-en.html
URL: http://opsi.ir/article-1-2126-en.html
1- Department of Physics, Iran University of science and technology, Tehran
Abstract: (1532 Views)
We present a computational method for the extraction of refractive index profile of an optical fiber using measurement of fiber phase image. In this method the refractive index profile of fiber will be obtained by the filtered back projection algorithm that apply Radon transformation on the phase image matrix. The phase information of a single mode fiber was obtained by the diffraction phase microscopy. Then the refractive index profile of this fiber was extracted using the inverse Radon transformation. The measured profile is well agreed with index profile of the preform, which had been designed by a preform analyzer before the fiber being fabricated from the preform.
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