Affiliation:
1. Ministry of Industry and Information Technology of the People’s Republic of China
2. Ministry of Education of the People’s Republic of China
Abstract
Optical vortex array has drawn widespread attention since the boom of special applications such as molecular selecting and optical communication. Here, we propose an integrated phase-only scheme to generate multiple multiplexed vortex beams simultaneously, constituting a multiplexed vortex state array, where the spatial position, as well as the corresponding orbital angular momentum (OAM) spectrum, can be manipulated flexibly as desired. Proof-of-concept experiments are carried out and show a few different multiplexed vortex state arrays that fit well with the simulation. Moreover, regarding the array as a data-carrier, a one-to-many multicasting link through multi-state OAM shift keying, a high-dimensional data coding, is also available in free space. In the experiment, four various OAM states are employed and achieve four bits binary symbols, and finally distribute three different images to three separate receivers independently from the same transmitter, showing great potential in the future high-dimensional optical networks.
Funder
National Natural Science Foundation of China
National Defense Basic Scientific Research Program of China
National Postdoctoral Program for Innovative Talents
Subject
Atomic and Molecular Physics, and Optics
Cited by
11 articles.
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