Hollow Core NANF with 0.28 dB/km Attenuation in the C and L Bands

Abstract

We report an effectively single-moded, 1.7km long hollow core Nested Antiresonant Nodeless Fiber (NAOT) with record-low 0.28dB/km loss from 1510 to 1600nm, which further reduces the loss gap with standard all-glass single mode fibers.