PC, or physical contact, describes a fiber optic connector design in which the polished fiber ends make direct contact to reduce back reflection and improve return loss.
PC stands for physical contact, a fiber optic connector design in which the polished end faces of the mating fibers are brought into direct contact. By eliminating the small air gap that would otherwise exist between fibers, the physical contact design reduces back reflection, also called return loss, improving the quality of the optical connection. Physical contact connectors are designed to keep back reflections below a defined level.
Reducing back reflection is important in fiber optic links because reflected light can interfere with the source and degrade signal quality. The physical contact approach, achieved by polishing the fiber ends to a curved profile, brings the cores together cleanly, minimizing reflection at the junction.
In commercial and industrial fiber systems, connector performance affects the loss and reflection of every connection. Recognizing designs like physical contact helps in understanding how connector quality contributes to the overall integrity of a fiber link.
Because reflected light can interfere with the source and degrade signal quality, reducing back reflection matters in fiber links, and the physical contact approach, achieved by polishing the fiber ends to a curved profile, brings the cores together cleanly to minimize reflection at the junction.
At Windy City Wire, the focus on fiber optic cable for commercial communication connects to the connectors and terminations that complete a link. Understanding connector designs like physical contact helps customers appreciate how junction quality affects the performance of their fiber infrastructure.
PC (Physical Contact)