S
Solyman Ashrafi
Researcher at Southern Methodist University
Publications - 82
Citations - 4243
Solyman Ashrafi is an academic researcher from Southern Methodist University. The author has contributed to research in topics: Orbital angular momentum multiplexing & Angular momentum. The author has an hindex of 33, co-authored 82 publications receiving 3441 citations. Previous affiliations of Solyman Ashrafi include The Catholic University of America & Computer Sciences Corporation.
Papers
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Journal ArticleDOI
Optical communications using orbital angular momentum beams
Alan E. Willner,Hao Huang,Yan Yan,Yongxiong Ren,Nisar Ahmed,Guodong Xie,Changjing Bao,Long Li,Yinwen Cao,Zhe Zhao,Jian Wang,Martin P. J. Lavery,Moshe Tur,Siddharth Ramachandran,Andreas F. Molisch,Nima Ashrafi,Solyman Ashrafi +16 more
TL;DR: In this article, the authors review recent progress in OAM beam generation/detection, multiplexing/demultiplexing, and its potential applications in different scenarios including free-space optical communications, fiber-optic communications, and RF communications.
Journal ArticleDOI
Performance metrics and design considerations for a free-space optical orbital-angular-momentum-multiplexed communication link
Guodong Xie,Long Li,Yongxiong Ren,Hao Huang,Yan Yan,Nisar Ahmed,Zhe Zhao,Martin P. J. Lavery,Nima Ashrafi,Solyman Ashrafi,Robert Bock,Moshe Tur,Andreas F. Molisch,Alan E. Willner +13 more
TL;DR: In this paper, the trade-offs for different transmitted beam sizes, receiver aperture sizes, and mode spacing of the transmitted OAM beams under given lateral displacements or receiver angular errors were investigated.
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Experimental characterization of a 400 Gbit/s orbital angular momentum multiplexed free-space optical link over 120 m.
Yongxiong Ren,Zhe Wang,Peicheng Liao,Long Li,Guodong Xie,Hao Huang,Zhe Zhao,Yan Yan,Nisar Ahmed,Asher J. Willner,Martin P. J. Lavery,Nima Ashrafi,Solyman Ashrafi,Robert Bock,Moshe Tur,Ivan B. Djordjevic,Mark A. Neifeld,Alan E. Willner +17 more
TL;DR: Both experimental and simulation results show that power penalties increase rapidly when the displacement increases, and the influence of channel impairments on the received power, intermodal crosstalk among channels, and system power penalties is investigated.
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Recent advances in high-capacity free-space optical and radio-frequency communications using orbital angular momentum multiplexing
Alan E. Willner,Yongxiong Ren,Guodong Xie,Yan Yan,Long Li,Zhe Zhao,Jian Wang,Moshe Tur,Andreas F. Molisch,Solyman Ashrafi +9 more
TL;DR: This review paper highlights recent advances in the use of OAM multiplexing for high-capacity free-space optical and millimetre-wave communications and discusses different technical challenges as well as potential techniques to mitigate such degrading effects.
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Orbital Angular Momentum-based Space Division Multiplexing for High-capacity Underwater Optical Communications.
Yongxiong Ren,Long Li,Zhe Wang,Seyedeh Mahsa Kamali,Ehsan Arbabi,Amir Arbabi,Zhe Zhao,Guodong Xie,Yinwen Cao,Nisar Ahmed,Yan Yan,Cong Liu,Asher J. Willner,Solyman Ashrafi,Moshe Tur,Andrei Faraon,Alan E. Willner +16 more
TL;DR: In this article, the spatial domain is employed to simultaneously transmit multiple orthogonal spatial beams, each carrying an independent data channel, and the degradation effects of scattering/turbidity, water current, and thermal gradient-induced turbulence are investigated.