- Apparatus and method of suppression of back-reflection noise in SDM-WDM optical communication system using multi-core fiber

摘要

A multi-core optical fiber-based space-wavelength division multiplexing optical network apparatus and a noise removing method thereof are disclosed. The space-wavelength division multiplexing optical communication network apparatus according to an embodiment of the present invention includes a light source for generating and outputting seed light for transmitting an upstream signal, and a space division multiplexing/demultiplexing unit for space-division multiplexing the output light of the light source, propagating the space-division multiplexed light to an optical fiber, space-division demultiplexing reflection light which is reflected and returned during propagation and transmitting the space-division demultiplexed light through a path which is different from the path of the upstream signal, thereby blocking the reflection. Accordingly, the present invention can prevent deterioration due to Rayleigh back scattering.