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Dynamic channel modeling for mode-division multiplexing
2016 IEEE Photonics Society Summer Topical Meeting Series (SUM), 2016We propose a dynamic channel model to describe time-varying polarization- and spatial-mode coupling in few-mode fibers caused by fast environmental perturbations. We employ the model to study the tracking performance of adaptive multi-input multi-output equalization algorithms.
Karthik Choutagunta, Joseph M. Kahn
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Mode-Division Multiplexer with Contra-directional Couplers
2019 24th OptoElectronics and Communications Conference (OECC) and 2019 International Conference on Photonics in Switching and Computing (PSC), 2019In this paper, a mode-division multiplexer is numerically designed using 2D Finite Difference Time Domain (FDTD) method that can multiplex three modes simultaneously by employing gratings, which enable power transfer between the waveguide modes.
Manoranjan Minz +2 more
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MIMO DSP Complexity in Mode-Division Multiplexing
Optical Fiber Communication Conference, 2015We review group delay management techniques and multi-input multi-output (MIMO) digital signal processing (DSP) architectures for mode-division multiplexing systems. We demonstrate long-period fiber grating devices for introduction of strong mode coupling to obtain fast and low complexity MIMO DSP.
Sercan Ömer Arik +2 more
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Silicon-on-Insulator Mode (de)Multiplexer for On-Chip Mode-Division Multiplexing
Asia Communications and Photonics Conference 2013, 2013We propose a simple 1×4 silicon mode (de)multiplexer based on multimode grating-assisted-couplers. Due to the contra-directional coupling, precise control of the coupling strength and the coupling length are not needed.
Huiye Qiu +4 more
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Spatial multiplexers and demultiplexers for mode group division multiplex
2013 15th International Conference on Transparent Optical Networks (ICTON), 2013Spatial multiplexer and demultiplexer are beneath the multimode fiber the key components for a transmission system using mode or mode group division multiplexing (MDM or MGDM). The spatial multiplexer converts the LP01 modes of the incoming singlemode fibers into the desired modes or mode groups of the multimode fiber.
Bernd Franz, Henning Buelow
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Low loss mode multiplexer de-multiplexer for mode division multiplexing over two mode fiber
2015 Workshop on Recent Advances in Photonics (WRAP), 2015Mode Division Multiplexing (MDM) over Few Mode Fiber (FMF) enhances the capacity of an optical fiber system by providing additional degrees of freedom in the form of modes which are selectively excited at the transmitter and selectively detected at the receiver. The key to capitalize on such a system is implementation of low loss mode multiplexer (mux)
Ashish Awasthi +2 more
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Multiplexing and switching for mode division multiplexed optical interconnects
2016 Progress in Electromagnetic Research Symposium (PIERS), 2016We present some basic functional elements for mode division multiplexed optical interconnects including an inverse designed mode multiplexer, a thermo-optic based mode add-drop switch, and integrated modulators for mode division multiplexed interconnects.
Hon Ki Tsang, Xinru Wu, Linghai Liu
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Bidirectional mode-division multiplexers with antireflection gratings
Applied Optics, 2018A bidirectional mode-division multiplexer (BMDM) with antireflection gratings is designed, and its performance in terms of S-parameters is presented. A BMDM can (de)multiplex three modes with only two waveguides and a Bragg grating. The impact of return losses on the performance of BMDMs is studied and antireflection gratings are designed to reduce ...
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Few-Mode Fibers for Space Division Multiplexing
Optical Fiber Communication Conference, 2016Mode Division Multiplexing: potential high number of usable spatial modes and strong mode overlapping (high spatial density and efficient pumping for amplification) FMFs for WEAKLY-COUPLED MDM 4-LP-mode Fibers have been reported, 7-LP-mode Fibers (capacity increase of a factor of 12) seem feasible Main limitations are Aeff, Attenuation and XT: new ...
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Integrated Tunable Mode Filter for Mode-Division Multiplexed System
2018 European Conference on Optical Communication (ECOC), 2018A fundamental/high-order mode tunable filter is proposed and demonstrated for mode-multiplexed optical network, based on Silicon platform. This reconfigurable mode filter exhibits high extinction ratio of 18 dB and low insertion loss of 3 dB over C-band.
Chunlei Sun +4 more
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