Theoretical Investigation of the Capacity of Space Division Multiplexing with Multimode Step-Index Air-Clad Silica Optical Fibers
Svetislav Savović,
Alexandar Djordjevich,
Isidora Savović,
Branko Drljača,
Ana Simović,
Rui Min
Affiliations
Svetislav Savović
Center for Cognition and Neuroergonomics, State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University at Zhuhai, Zhuhai 519087, China
Alexandar Djordjevich
Department of Mechanical Engineering, City University of Hong Kong, 83 Tat Chee Avenue, Kowloon, Hong Kong, China
Isidora Savović
Laboratory of Neurodegenerative Disease, School of Biomedical Sciences, LKS Faculty of Medicine, The University of Hong Kong, 21 Sassoon Road, Pokfulam, Hong Kong, China
Branko Drljača
Faculty of Sciences and Mathematics, University of Priština in Kosovska Mitrovica, L. Ribara 29, 38220 Kosovska Mitrovica, Serbia
Ana Simović
Faculty of Science, University of Kragujevac, R. Domanovića 12, 34000 Kragujevac, Serbia
Rui Min
Center for Cognition and Neuroergonomics, State Key Laboratory of Cognitive Neuroscience and Learning, Beijing Normal University at Zhuhai, Zhuhai 519087, China
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.
