Author:
Wei Xuhao,Wheeler Natalie V.,Gorajoobi Shahab Bakhtiari,Sandoghchi Seyed Reza,Poletti Francesco,Slavík Radan
Abstract
We use a custom-developed high-sensitivity optical time domain reflectometer to monitor evacuation of an antiresonant hollow core fiber. While initially backscattering from the air-filled core is dominant, as gas pressure reduces, surface-related backscattering is measured.