First Triple Nested Antiresonant Nodeless Hollow Core Fiber (TNANF) Achieving 0.25 dB/km Loss with Small 145/250μm Glass/Coating Diameters
- Ghafour Amouzad Mahdiraji ,
- Gregory Jackson ,
- Seyed Mohammad Abokhamis Mousavi ,
- Naveen Krishna Baddela ,
- Jaroslaw Rzegocki ,
- Gianluca Guerra ,
- Mahmudur Rahman ,
- Chiang Ping Saw ,
- Ian A. Davidson ,
- Gregory T. Jasion ,
- Austin Taranta ,
- Francesco Poletti
We report an improved antiresonant hollow core fiber (HCF) with triple-nested tubes to minimise loss at SMF-type 250μm coating diameters. When MFD-matched to SMF, the fiber has 0.54 dB/km and record bend-loss performance. Increasing its MFD by ~30% produces 0.25 and 0.35dB/km at 1550 and 1310nm, respectively.