An optical component system includes an optical component having a plurality of ports through which light signals exit the optical component. The system also includes a light sensor array having a plurality of light sensors. The light sensor array is coupled to the optical component such that different light sensors receive light signals that exit the optical component through different ports. The system also includes a light barrier positioned between the optical component and the light sensor array and between adjacent light sensors. In some instances, the light barrier is one of a plurality of light barriers that are each positioned between adjacent light sensors.