MDL reduction effect of S-bend induced modal coupling in five-mode ring core fiber

摘要

We discuss the extensibility of the S bend model to five mode ring core fiber (RCF). We propose a MUX/DEMUX for the five mode RCF and clarify design conditions from the viewpoint of connectivity. We evaluate the in-bobbin state with different barrel sizes and confirm the extensibility of the S bend model to five mode transmission. Furthermore, a transmission experiment demonstrates the reduction in MDL possible by promoting binding in five-mode RCF.