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25 October 2011 Hybrid birefringence and dichromatism in twisted single-mode erbium-doped fibers
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Abstract
In this work we present an experimental evaluation of the twist-induced birefringence changes measured in straight samples of commercial single-mode erbium-doped fibers. The five commercial samples studied showed a significant asymmetric response to right and left twists, a result different to that previously measured in standard telecom fibers. We found similar birefringence responses measured for fibers with different erbium concentrations, developed by the same manufacturer; while fibers made by different manufacturers presented a non-similar response. Since absorption is an important characteristic of erbium-doped fibers, we have considered the possible influence of hybrid (linear and circular) dichroism. Therefore, we calculated the 4×4 Mueller matrix required to predict the induced birefringence taking into account refractive and absorption anisotropies.
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D. Tentori and A. Garcia-Weidner "Hybrid birefringence and dichromatism in twisted single-mode erbium-doped fibers", Proc. SPIE 8011, 22nd Congress of the International Commission for Optics: Light for the Development of the World, 801151 (25 October 2011); https://doi.org/10.1117/12.902331
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