Ultra-high-density uncoupled multi-core fibers
New optical fibers to improve the space efficiency for high-density space division multiplexing transmissions are strongly required. From the viewpoint of simplicity from fiber properties measurements to system configurations, uncoupled multi-core fiber (MCF) is very desirable. However, low cross-talk properties required for uncoupled MCFs are trade-off relationship with space efficiencies, in general. We have investigated to improve the space efficiency of the uncoupled MCFs by increasing the number of cores. Of course, increasing core numbers require additional challenges from fiber designs to fiber fabrications. We will introduce our recent research results on these investigations.
Furukawa Electric Co., Ltd. (Japan)