Open AccessPhotonic crystal fiber for supporting 26 orbital angular momentum modes
Author(s) -
Zi-Ang Hu,
Yuqi Huang,
Aiping Luo,
Hu Cui,
ZhiChao Luo,
WenCheng Xu
Publication year - 2016
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.24.017285
Subject(s) - angular momentum , photonic crystal fiber , optics , cladding (metalworking) , wavelength , physics , photonic crystal , materials science , quantum mechanics , metallurgy
We propose and numerically investigate a photonic crystal fiber (PCF) based on As 2 S 3 for supporting the orbital angular momentum (OAM) modes up to 26. The designed PCF is composed of four well-ordered air hole rings in the cladding and an air hole at the center. The OAM modes can be well separated due to the large effective index difference of above 10 -4 between the eigenmodes and maintain single-mode condition radially. In addition, the dispersions of the modes increase slowly with wavelengths, while the confinement loss keeps as low as 10 -9 dB/m. The proposed PCF increases the supported OAM modes which could have some potential applications in short-distance, high-capacity transmission.