Four-wave mixing mitigation by using waveguide-based 4λ-WDM filters for 800 and 400 GbE

Abstract

We report four-wave mixing mitigation by 4λ-WDM filters fabricated by silica-based planar lightwave circuits for 800- and 400-GbE application. The multiplexing filter integrates a simple polarization-alternating structure on arbitrary lanes for the impairment mitigation.