1Huazhong University of Science and Technology, Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Wuhan, China
The article comments on a recently reported OAM comb. The proposed approach relies on a simple azimuthal binary phase modulation scheme to transform a Gaussian beam into a structured light beam containing multiple OAM components with equal spacing and uniform power. It provides a convenient way to simultaneously tailor multiple OAM channels, with the potential to impact many fields, including optical information technology.