Sanwa’s PM Connectors are precision fiber optic connectors engineered to maintain the polarization axis of light across the mating interface, keeping the fast and slow axes of Panda-style polarization-maintaining fiber precisely aligned at the connector key. Built for demanding interconnect applications, each connector delivers low insertion loss, high extinction ratio, and repeatable key-to-axis alignment across mating cycles. The line is available in FC, SC, and LC connector styles to fit standard PM patch cords, jumpers, and pigtail assemblies. Typical applications include fiber lasers, fiber optic sensing and gyroscopes, coherent communications, quantum optics, and test and measurement systems where preserving polarization state is critical.