Thin-diameter Bend-insensitive PM FiberThin-diameter Bend-insensitive PM Fiber

The thin-diameter bend-insensitive PM fiber for devices is a specialty fiber designed for next-generation ultra-compact optical modules, high-density optical interconnects and space-constrained optoelectronic devices. It uses a mature and reliable Panda structure with symmetric, regular dual circular stress elements, offering high birefringence, excellent grindability, low transmission loss and good geometric consistency. Through a special waveguide structure and optimized stress elements, its bending performance is markedly improved, with a bend radius down to 5 mm, ensuring very low bending loss and a stable polarization extinction ratio at small bend radii.

The series covers the two mainstream telecom wavelengths of 1310 nm and 1550 nm, with an 80 μm cladding / 165 μm coating diameter, which reduces the cross-sectional area by nearly 60% compared with conventional 125 μm cladding fiber. Its smaller geometry meets the increasingly stringent requirements on fiber volume and routing space in the evolution of optical modules, supporting the miniaturization and high-density trend of future optoelectronic devices and providing a flexible, efficient optical transmission medium for capacity upgrades in data centers and high-speed interconnection of AI computing clusters.