
What’s PM Fiber Cable
PM fiber cable, short for Polarization-Maintaining Fiber Cable, is a specialized type of optical fiber designed to preserve the polarization state of light signals during transmission. Unlike standard optical fibers, which allow light to propagate in random polarization states (leading to polarization mode dispersion or depolarization), PM fibers are engineered to maintain the initial polarization of light. This makes them critical for applications requiring high precision and stability in optical signal polarization.