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21 February 2007 Qualitative measurement of average index profile of symmetrical microstructured optical fiber from microscopic imaging
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Abstract
Using a simple non-destructive and non-interferometric technique, we obtained an approximation of the average index profile for a partially symmetrical air-silica microstructured optical fiber. The method proposed in [1] for conventional fibers, where an image of the phase gradients is introduced into a transmitted optical field by a fiber sample, was used. An image of the phase gradients was obtained using a technique based on bright field microscopy. Then, an average of the refractive index profile for optical fibers was reconstructed using the inverse Abel transform.
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Edgar Saucedo and Vladimir P. Minkovich "Qualitative measurement of average index profile of symmetrical microstructured optical fiber from microscopic imaging", Proc. SPIE 6501, Sensors, Cameras, and Systems for Scientific/Industrial Applications VIII, 65010Y (21 February 2007); https://doi.org/10.1117/12.704183
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