Nested Low-Loss Hollow Core Fiber

摘要

A novel hollow core antiresonant fiber made of a single material is numerically investigated. The design of the fiber cladding based on nested antiresonant tubes without additional radial interconnection struts suppresses the presence of spurious loss peaks and dips within the antiresonant windows, which benefits for the wide bandwidth and low loss transmission. Through simply adding antiresonant membranes, the leakage loss of the fiber can be effectively reduced and the bending loss is negligible. Adoption of this fiber design in the negative curvature fibers will lead to improved performance in terms of losses compared to previously reported antiresonat fibers.