Influence of mode coupling on mode group diversity multiplexing in multimode fibers

Stępniak, Grzegorz; Maksymiuk, Lukasz; Siuzdak, J.

doi:10.1007/s11082-009-9345-7

Cited by 7 publications

(1 citation statement)

References 16 publications

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“…GI-MMF's large core diameter mitigates non-linear effects, is more effective in coupling with light source, and possesses higher alignment tolerance with connectors. Moreover, multimode link components are significantly cheaper than those working with SMF [3]. Most importantly, GI-MMF permits the use of mode division multiplexing (MDM), allowing higher data-rate transmission systems.…”

Section: Introductionmentioning

confidence: 99%

Tilted Gaussian Beams Multiplexer for Graded-Index Multimode Fiber in Data-Centers Interconnections

Sheffi

Sadot

2015

IEEE Photonics J.

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In recent years, there has been an explosive growth of data traffic in datacenter interconnections. A significant amount of the installations within data centers are graded-index multimode fibers (GI-MMFs). These fibers enable the use of mode-division multiplexing to increase the fiber's capacity. The heart of such a multiplexing scheme is a spatial multiplexer. In this paper, we propose a simple tilted Gaussian beam multiplexer for GI-MMF using low-cost commercially available lenses. We derive an analytical expression for the power coupling coefficients using a tilted Gaussian beam launch into a GI-MMF. We use the analytical expression to perform an optimization algorithm for tilted Gaussian beams as a spatial multiplexer with GI-MMF. The optimization was performed for 3 Â 3, 4 Â 4, and 5 Â 5 multiple-input-multiple-output (MIMO) systems. Typical power coupling matrices exhibit maximum crosstalk of À12.5 dB with strong coupling efficiency that is greater than À0.6 dB.

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Section: Introductionmentioning

confidence: 99%