Open AccessAll-optical tunable high-order Gaussian beam splitter based on a periodic dielectric atomic structure
Author(s) -
Hengfei Zhang,
Jinpeng Yuan,
Shichao Dong,
Chengyin Wu,
Lirong Wang,
Xiao Liu,
Suotang Jia
Publication year - 2021
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.428311
Subject(s) - beam splitter , optics , dielectric , gaussian beam , beam (structure) , fiber optic splitter , materials science , port (circuit theory) , optical communication , light beam , splitter , physics , optoelectronics , optical fiber , laser , electronic engineering , fiber optic sensor , engineering
Beam splitting of high-order Gaussian (HOG) beams increases the channel capacity and improves the processing speed of the incoming information. Here a novel all-optical tunable multi-port HOG beam splitter under a periodic dielectric atomic structure is proposed and demonstrated. The original HOG beam is replicated in the output beams. A distinguishable five-port output beam is observed in the experiment, which is beneficial for high-speed optical communications. By tuning the optical properties of this periodic dielectric structure, the spatial position and intensity distribution of each output port are precisely controllable. The splitting ratio δ can be finely adjusted in the range 0 - 4.8. This work provides a new approach for multi-port HOG beam splitters and the basis for all-optical communication.