Abstract: The present disclosure provides a Multi-fiber push on (MPO) connector channel verification apparatus and method for verifying the MPO cable polarity and each optic fiber position in MPO cables or patch-cords. The apparatus includes a verification module that provides an illumination source configured to direct light on fiber end faces in an MPO connector at an end of the MPO cable according to predetermined sequences such that an inspection microscope at the other end of the MPO cable may be utilized to analyze the illumination sequence of illuminated fibers occurring at the other end of the MPO cable to verify the channel locations and polarity of the MPO cable.

Abstract: A lightweight miniature interferometric device for interferometric inspection of circular multi-channel fiber optic connectors that includes the interferometric microscope, holding fixture, multi-axis motion mechanism and computing device. The system performs an interferometric inspection of multi-channel fiber optic connector. The method of interferometric inspection provides automatic scan of the multi-channel fiber optic connector, reconstructing 3D surfaces of fiber optic termini of the connector and analyzing its parameters. The system connects to the connector by holding fixture and performs an interferometric inspection of each fiber optic terminus of the connector by means of multi-axis motion mechanism.

Abstract: An interferometric measurement method precisely determines parallelism and 3D position of guide pin holes and fiber holes in multi-fiber ferrules used in connectors. The parallelism and position are measured for the ferrule with inserted reference guide pins and reference fibers by scanning the ferrule from side in an interferometric system. Fiber hole deviations from designated locations on the ferrule end face and distance between the fiber holes and the guide pin holes are calculated as well.