Open AccessHollow-core mode propagation in an isomeric nested anti-resonant fiber
Author(s) -
Honggui Di,
Ningfang Song,
Fuyu Gao,
Wei Li,
Xiaojun Xu
Publication year - 2021
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.434964
Subject(s) - cladding (metalworking) , optics , coupling loss , core (optical fiber) , transmission loss , mode volume , fiber , materials science , angular momentum , optical fiber , coupling (piping) , coupled mode theory , mode (computer interface) , graded index fiber , physics , refractive index , fiber optic sensor , composite material , quantum mechanics , computer science , operating system
We present a modified fiber model based on the nested hollow core anti-resonant fiber that enables the stable transmission of the orbital-angular-momentum mode HE 21 . By replacing a pair of nested anti-resonant tubes in the horizontal axis with resonant tubes, the coupling between core mode and cladding mode has been increased. Therefore, the relative strength of fundamental mode HE 11 and the first higher mode HE 21 has been modified. The numerical simulation results indicate that the loss ratio of the lowest loss HE 11 to HE 21 can be optimized to more than 187, while the HE 21 still maintains a low confinement loss as 0.0027 dB/m. Our research has brought about a solution of low loss hollow core mode propagation in optical fiber. Those properties will make this fiber an ideal medium for blue-detuned atomic guidance.