Supermodes for optical transmission.
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Through simulations, it is shown that the proposed coupled multi-core fiber allows lower modal dependent loss, mode coupling and differential modal group delay than few-mode fibers, and could be a good candidate for both spatial division multiplexing and single-mode operation.Abstract:
In this paper, the concept of supermode is introduced for long-distance optical transmission systems. The supermodes exploit coupling between the cores of a multi-core fiber, in which the core-to-core distance is much shorter than that in conventional multi-core fiber. The use of supermodes leads to a larger mode effective area and higher mode density than the conventional multi-core fiber. Through simulations, we show that the proposed coupled multi-core fiber allows lower modal dependent loss, mode coupling and differential modal group delay than few-mode fibers. These properties suggest that the coupled multi-core fiber could be a good candidate for both spatial division multiplexing and single-mode operation.read more
Citations
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References
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Coupled-Mode Theory for Optical Fibers
TL;DR: In this paper, a set of coupled-mode equations is derived to describe mode propagation in uniform and slightly nonuniform cylindrical optical-fiber systems, and the coupling between fibers of an array made up of n identical fibers each at the vertex of a polygon and one at the center, which is not necessarily the same as its n neighbors, is determined.
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TL;DR: This work uses a key simplification to investigate the theoretical limits to the information capacity of an optical fibre arising from these nonlinearities and relates the nonlinear channel to a linear channel with multiplicative noise, for which it is able to obtain analytical results.
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Curvature loss formula for optical fibers
TL;DR: In this article, the curvature loss for optical fibers with constant radius of curvature of their axes is derived by expressing the field outside of the fiber in terms of a superposition of cylindrical outgoing waves.
Posted Content
Nonlinear limits to the information capacity of optical fiber communications
TL;DR: In this article, the authors show that the capacity of the nonlinear information channel of an optical fiber does not grow indefinitely with increasing signal power, but has a maximal value, which is the same as that of a linear channel with multiplicative noise.
Proceedings ArticleDOI
Space-division multiplexing over 10 km of three-mode fiber using coherent 6 × 6 MIMO processing
R. Ryf,Sebastian Randel,Alan H. Gnauck,C. Bolle,Rene-Jean Essiambre,Peter J. Winzer,D. W. Peckham,Alan McCurdy,Robert Lingle +8 more
TL;DR: In this article, the authors demonstrate the transmission of 6 independent, spatially and polarization multiplexed 28-Gb/s QPSK signals over 10 km of three-mode fiber using mode-selective excitation and full coherent 6 × 6 MIMO processing.