This work has been supported in part by the National Basic Research Program of China (973) (No. 2014CB340104/1), the National Natural Science Foundation of China (NSFC) (Grant Nos. 61377076, 61307085 and 61431009).
Space-division multiplexing (SDM) using multi-core fibers (MCFs) and few-mode fibers (FMFs) was proposed as a solution to increase capacity and/or reduce the cost per bit of fiber-optic transmission. Advances in...