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. 2010 Sep 30;18(21):21950–21958. doi: 10.1364/OE.18.021950

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©2010 Optical Society of America

This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-No Derivative Works 3.0 Unported License, which permits download and redistribution, provided that the original work is properly cited. This license restricts the article from being modified or used commercially.

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Fig. 2 — The representative refractive index profiles $n (z)$ modeled with GRF (a) with fixed $n_{0} = 1.4$ and $< Δ n > = 0.02$ , but different correlation length $L_{c}$ , and (b) with fixed $n_{0} = 1.4$ and $L_{c} = 140 n m$ and different average magnitude of refractive index variation $< Δ n >$ .