Abstract
We studied the effect of mode coupling on the space division multiplexing (SDM) capabilities of multimode step-index (SI) air-clad silica optical fibers by numerically solving the power flow equation. Mode coupling considerably reduces the length of these fibers at which space division multiplexing may be achieved with minimal crosstalk between neighboring optical channels, according to the findings. Up to 120 m and 30 m, respectively, the two and three spatially multiplexed channels in the investigated multimode step-index silica optical fibers can be used with low crosstalk. When building a space division multiplexing-based optical fiber transmission system, such characterization of optical fibers should be taken into account.
Highlights
Global network traffic has expanded dramatically in recent decades, owing primarily to the rapid expansion of the Internet [1]
Lacking in densely packed spatial channels in a fiber, mode coupling is critical since it allows crosstalk the literature, we investigated mode coupling in multimode SI air-clad silica optical fibers between channels
We theoretically investigated the effect of mode coupling on space division multiplexing (SDM)
Summary
Global network traffic has expanded dramatically in recent decades, owing primarily to the rapid expansion of the Internet [1]. Lacking in densely packed spatial channels in a fiber, mode coupling is critical since it allows crosstalk the literature, we investigated mode coupling in multimode SI air-clad silica optical fibers between channels. Capabilities in a multimode SI air-clad silica optical fiber employed in a prior experiment by Åslund et al [15].
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