Multicore EDFA for DWDM Transmission in Full C-band Yukihiro. etc. 张浩

 space division multiplexing (SDM)  multicore fiber (MCF)  beyond 100 Tbit/s in one fiber over length of several tens of km  demultiplexer at span boundary and each signal was amplified by independent amplifier.

cladding pumping  one multimode LD utilizing double-cladding structure, leading to low power consumption, lower cost, and downsizing.  optimizing the pump combiner, differential core gain, and noise figure as a future issue. core pumping  flexibly control the gain in each core individually  utilizing bidirectional core pumping scheme with external gain equalizers  177 Pbit/s x km per fiber was achieved.  flat gain bandwidth of 16 nm in WDM signals. multicore erbium-doped fiber amplifiers (MC-EDFAs)

First of all, we study the optical characteristics required for MC-EDFA no matter what pumping scheme is used.  the same gain properties compared to the conventional EDFA.  realize the gain uniformity of the core differential.  obtain the low crosstalk between cores. MC-EDFA with core pumping has a merit at this stage preliminary requirements for MC-EDFA

100GHz-spaced DWDM signals with 48 channels for 7 cores

crosstalk

THANKS!