Explore 79 top manufacturers and suppliers of Fiber Optic Connectors in our comprehensive photonics buyers' guide. A fiber optic connector is a mechanical device used to align and join optical fibers, enabling light to pass through with minimal loss. PM fiber components; patch cords, splitters/combiners, polarizers, isolators, fused/PLCS couplers, test equipment; PER meter, polarized sources, PDL emulators, polarization.