Journal ArticleDOI
Mode division multiplexing in optical fibers
S Berdagué,P Facq +1 more
TLDR
Two modes have been launched into a conventional 10-m long multimode graded-index optical fiber using spatial filtering techniques and modular multiplexing appears to be possible over short fiber lengths.Abstract:
Two modes have been launched into a conventional 10-m long multimode graded-index optical fiber using spatial filtering techniques. The measured cross talk between the two modes in the baseband is -20 dB at the output end of the fiber. Modal multiplexing thus appears to be possible over short fiber lengths.read more
Citations
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Journal ArticleDOI
Space-division multiplexing in optical fibres
TL;DR: In this paper, the authors summarized the simultaneous transmission of several independent spatial channels of light along optical fibres to expand the data-carrying capacity of optical communications, and showed that the results achieved in both multicore and multimode optical fibers are documented.
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
Space-division multiplexing: the next frontier in optical communication
TL;DR: This paper focuses on SDM for fiber-optic communication using few-mode fibers or multimode fibers, in particular on the critical challenge of mode crosstalk, and presents the prospects for SDM in optical transmission and networking.
Journal ArticleDOI
Creation and detection of optical modes with spatial light modulators
TL;DR: It is outlined how virtually all the previous ISO-standard beam diagnostic techniques may be readily replaced with all-digital equivalents, thus paving the way for unravelling of light in real time.
Journal ArticleDOI
Light fields in complex media: Mesoscopic scattering meets wave control
Stefan Rotter,Sylvain Gigan +1 more
TL;DR: In this article, a review summarizes how insights from mesoscopic scattering theory have direct relevance for optical wave control experiments and vice versa, and the results are expected to have an impact on a number of fields ranging from biomedical imaging to nanophotonics, quantum information, and communication technology.
References
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Journal ArticleDOI
Differential mode attenuation measurements in graded-index fibers
TL;DR: An automated apparatus is described for measuring mode-dependent scattering and total attenuation in graded-index waveguides to illustrate the ability of this technique to identify different types of loss mechanisms.
Journal ArticleDOI
Spatial and temporal power transfer measurements on a low-loss optical waveguide.
TL;DR: Negligible mode coupling was observed in this particular waveguide, which allowed a phenomenological calculation of temporal output for an assumed uniform excitation of all modes, which agreed well with experimental measurements.
Journal ArticleDOI
Mode excitation in a multimode optical-fibre waveguide
TL;DR: For normal incidence of a Gaussian beam on a multimode optical fiber, theory predicts that only HE1m, modes are excited as mentioned in this paper, and this is confirmed experimentally for a liquid-core fibre of normalised frequency v = 125.
Journal ArticleDOI
Observation of tubular modes in multimode graded-index optical fibres
P. Facq,P. Fournet,J. Arnaud +2 more
TL;DR: In this article, the clean propagation of tubular modes over more than 50 m of a multimode optical fiber has been observed, which opens the way to multichannel transmission through multimodal optical fibres and provides a new fibre testing method.