Open AccessVortex Beam Generation Method based on Spatial Light Modulator
Author(s) -
Kaifei Peng,
Xueju Shen,
Fuyu Huang
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/440/4/042082
Subject(s) - spatial light modulator , optics , vortex , beam (structure) , collimated light , laser beam quality , optical vortex , m squared , grating , beam parameter product , spiral (railway) , phase modulation , phase (matter) , beam diameter , physics , materials science , laser beams , laser , engineering , phase noise , mechanical engineering , quantum mechanics , thermodynamics
Aiming at the problem that the vortex beam is difficult to obtain under laboratory conditions, a vortex beam generation method based on spatial light modulator (SLM) is proposed. The collimated laser beam is modulated into a vortex beam by uploading a spiral phase mask attached to a grating on a SLM. Simulation results verify the effectiveness of the proposed method. The beam obtained from the experimental results also conforms to the properties of the vortex beam.