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1 February 2014 Coupling mechanism in multimode fibers
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The steady increase of bandwidth demand in worldwide communications has revived the interest about multimode optical bers and their use in spatial division multiplexed systems. Roughly speaking, in these systems transmission capacity is increased by using modes as separate channels, resorting to either special ber with negligible mode coupling, or to MIMO technology to compensate mode dispersion. In this framework, understanding the mechanisms that originate mode coupling is of crucial importance, for it would lead to the development of more accurate propagation models and optimized ber designs. The paper analyzes the most common sources of mode coupling and their e ects.
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Luca Palmieri "Coupling mechanism in multimode fibers", Proc. SPIE 9009, Next-Generation Optical Communication: Components, Sub-Systems, and Systems III, 90090G (1 February 2014);

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