Space division multiplexing in standard multi-mode optical fibers based on speckle pattern classification.

ABSTRACT: In optical communications the transmission bandwidth of single mode optical fibers is almost fully exploited. To further increase the capacity of a telecommunication link, multiplexing techniques can be applied across 5 physical dimensions: amplitude, quadrature, polarization, frequency and space, with all but the latter being nearly exhausted. We experimentally demonstrate the feasibility of an original space division multiplexing technique based on the classification of speckle patterns measured at the fiber's output. By coupling multiple optical signals into a standard multimode optical fiber, speckle patterns arise at the fiber's end facet. This is due to quasi-random interference between the excited modes of propagation. We show how these patterns depend on the parameters of the optic

SUBMITTER: Pauwels J 

PROVIDER: S-EPMC6879645 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature