Abstract
We explore the mitigation of atmospheric turbulence effects for orbital angular momentum (OAM)-based free-space optical (FSO) communications with multiple-input multiple-output (MIMO) architecture. Such a system employs multiple spatially separated aperture elements at the transmitter/receiver, and each transmitter aperture contains multiplexed data-carrying OAM beams. We propose to use spatial diversity combined with MIMO equalization to mitigate both weak and strong turbulence distortions. In a FSO link with each transmitter aperture containing two multiplexed OAM modes of and , we experimentally show that at least two OAM data channels could be recovered under both weak and strong turbulence distortions using selection diversity assisted with MIMO equalization.
© 2016 Optical Society of America
Full Article | PDF ArticleMore Like This
Long Li, Runzhou Zhang, Peicheng Liao, Yinwen Cao, Haoqian Song, Yifan Zhao, Jing Du, Zhe Zhao, Cong Liu, Kai Pang, Hao Song, Ahmed Almaiman, Dmitry Starodubov, Brittany Lynn, Robert Bock, Moshe Tur, Andreas F. Molisch, and Alan E. Willner
Opt. Lett. 44(21) 5181-5184 (2019)
Yongxiong Ren, Zhe Wang, Guodong Xie, Long Li, Yinwen Cao, Cong Liu, Peicheng Liao, Yan Yan, Nisar Ahmed, Zhe Zhao, Asher Willner, Nima Ashrafi, Solyman Ashrafi, Roger D. Linquist, Robert Bock, Moshe Tur, Andreas F. Molisch, and Alan E. Willner
Opt. Lett. 40(18) 4210-4213 (2015)
Hao Huang, Yinwen Cao, Guodong Xie, Yongxiong Ren, Yan Yan, Changjing Bao, Nisar Ahmed, Mark A. Neifeld, Samuel J. Dolinar, and Alan E. Willner
Opt. Lett. 39(15) 4360-4363 (2014)