A New G.652D, Zero Water Peak Fiber Optimized for Low Bend Sensitivity in Access Networks

摘要

As fiber is pushed closer to the home in FTTx networks, new requirements are being placed on the robustness of fiber in deployment and field handling conditions. In particular, improvements in macro and microbending sensitivities are critical for an optical fiber designed for use in access applications. These demanding specifications have led to development of a new bend insensitive (BI) optical fiber optimized for access networks. This new fiber provides low bending loss at tight bends with full spectrum, zero water peak (ZWP) performance. All properties are near the center of the ITU G.652D specification for seamless interoperability with existing networks. The new fiber offers the first industry specification at 20mm bending diameter, with values less than 0.2/0.5 dB per turn at 1550/1625 nm. Typical 20mm bending diameter values are less than 0.05/0.1 dB/turn at 1550/1625 nm. Microbending sensitivity is reduced by half compared to standard G.652D fiber.