Multi-Core Fiber

Multi-core fiber is a new type of optical fiber with multiple independent cores designed within a common cladding region. According to core spacing, it can be divided into large-core-spacing multi-core fiber and small-core-spacing multi-core fiber. Large-core-spacing multi-core fiber is a fiber that does not produce optical wave coupling, and can improve the optical transmission density per unit area of transmission lines. Because the distances between cores in small-core-spacing multi-core fiber are relatively short, optical wave coupling can occur; dual-core sensors or optical circuit devices developed using this principle can be used in the field of fiber-optic sensing.