摘要
Te orthogonal nature of diferent orbital angular momentum modes enables information transmission in optical communications with increased bandwidth through mode division multiplexing.So far the related works have been focused on using orbital angular momentum modes to encode/decode and multiplex point-based on-axis signals for maximum data channel numbers and capacity.Whether orbital angular momentum modes can be utilized to encode/decode of-axis signals for multiplexing in twodimensional space is of signifcant importance both fundamentally and practically for its enormous potential in increasing the channel information capacity.In this work,a direct use of orbital angular momentum modes to encode/decode and multiplex twodimensional images is realized in a scalable multiview display architecture,which can be utilized for viewing three-dimensional images from diferent angles.Te efect of of-axis encoding/decoding and the resultant crosstalk between multiplexed diferent twodimensional views are studied.Based on which,a color display of good image quality with four independent views is demonstrated.Te resolution of the decoded images is analyzed and the limitation of this approach discussed.Moreover,a spatially multiplexed data communication scheme is also proposed with such a two-dimensional encoding/decoding approach to signifcantly enhance the data transmission capacity in free space for future data communication needs.
出处
《Research》
EI
CAS
2019年第1期1144-1154,共11页
研究（英文）
基金
This research was performed under a joint collaboration between Disney Research and the University of Cambridge through the CAPE consortium.J.Chu and D.Chu would like to thank the UK Engineering and Physical Sciences Research Council(EPSRC)for the support through the Platform Grant for Liquid Crystal Photonics(EP/F00897X/1)
the EPSRC Centre for Innovative Manufacturing in Ultra Precision(EP/I033491/1).J.Chu thanks K.Li for experimental assistance.
