Optical communications using orbital angular momentum beams
@article{Willner2015OpticalCU, title={Optical communications using orbital angular momentum beams}, author={Alan E. Willner and Hao Huang and Yan Yan and Yongxiong Ren and Nisar Ahmed and Guodong Xie and Changjing Bao and Long Li and Yinwen Cao and Zhe Zhao and Jian Wang and Martin P. J. Lavery and Moshe Tur and Siddharth Ramachandran and Andreas F. Molisch and Nima Ashrafi and Solyman Ashrafi}, journal={Advances in Optics and Photonics}, year={2015}, volume={7}, pages={66-106} }
Orbital angular momentum (OAM), which describes the “phase twist” (helical phase pattern) of light beams, has recently gained interest due to its potential applications in many diverse areas. Particularly promising is the use of OAM for optical communications since: (i) coaxially propagating OAM beams with different azimuthal OAM states are mutually orthogonal, (ii) inter-beam crosstalk can be minimized, and (iii) the beams can be efficiently multiplexed and demultiplexed. As a result, multiple…
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