S
Siddharth Ramachandran
Researcher at Boston University
Publications - 345
Citations - 11365
Siddharth Ramachandran is an academic researcher from Boston University. The author has contributed to research in topics: Optical fiber & Photonic-crystal fiber. The author has an hindex of 44, co-authored 328 publications receiving 9430 citations. Previous affiliations of Siddharth Ramachandran include Microsoft & Virginia Tech.
Papers
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Journal ArticleDOI
Terabit-Scale Orbital Angular Momentum Mode Division Multiplexing in Fibers
Nenad Bozinovic,Yang Yue,Yongxiong Ren,Moshe Tur,Poul Kristensen,Hao Huang,Alan E. Willner,Siddharth Ramachandran +7 more
TL;DR: The viability of using the orbital angular momentum (OAM) of light to create orthogonal, spatially distinct streams of data-transmitting channels that are multiplexed in a single fiber is demonstrated and suggest that OAM could provide an additional degree of freedom for data multiplexing in future fiber networks.
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
Spatially and spectrally resolved imaging of modal content in large-mode-area fibers
TL;DR: A new measurement technique, capable of quantifying the number and type of modes propagating in large-mode-area fibers is both proposed and demonstrated, based on both spatially and spectrally resolving the image of the output of the fiber under test.
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Generation and propagation of radially polarized beams in optical fibers
TL;DR: This work demonstrates a class of optical fibers in which these beams can be generated and propagated over long lengths with unprecedented stability, even in the presence of strong bend perturbations, opening the door to exploiting nonlinear fiber optics to manipulate such beams.
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Optical vortices in fiber
TL;DR: In this article, the authors discuss the means by which optical fibers, hitherto considered unsuitable for stably supporting optical vortices, may be used to generate and propagate such exotic beams.