Polarization-maintaining, single-mode fiber cable with Gaussian intensity distribution and low-stress fiber connectors. Furthermore, our reliable quality ensures low loss transmission. According to its application environment, it improves the mechanical reliability, temperature stability, environmental adaptability and radiation resistance of. Fibercore's industry leading polarization maintaining fiber (PM fiber), is designed for high performance interferometric and plarimetric sensors, integrated optics and communications. Fibercore's family of PM fiber is called HiBi for its high birefringence and is manufactured with the Bow-Tie. From ultra-precise fiber-optic gyroscopes to next-generation quantum and cold-atom systems, Exail leads the way with specialized optical fibers engineered for unmatched stability, efficiency, and performance.