Results 261 to 270 of about 8,588 (301)
Some of the next articles are maybe not open access.

Performance comparison of high-speed long-reach mode division multiplexing-based radio over free space optics transmission system using different modulation formats under the effect of atmospheric turbulence

Optical Engineering: The Journal of SPIE, 2019
. We report the performance comparison of mode division multiplexing (MDM)-based radio over free space optics (RoFSO) transmission system using different modulation formats viz.
Mehtab Singh, J. Malhotra
semanticscholar   +1 more source

Silicon-on-Insulator Mode (de)Multiplexer for On-Chip Mode-Division Multiplexing

Asia Communications and Photonics Conference 2013, 2013
We 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
openaire   +1 more source

MIMO detection using a deep learning neural network in a mode division multiplexing optical transmission system

Optics Communications, 2019
Optimum Multiple Input Multiple Output (MIMO) detector has always been a challenge in MIMO communication systems. In this paper, a novel MIMO detector has been designed using a supervised Deep Learning Neural Network (DLNN) and has been implemented ...
B. Poudel   +3 more
semanticscholar   +1 more source

Spatial multiplexers and demultiplexers for mode group division multiplex

2013 15th International Conference on Transparent Optical Networks (ICTON), 2013
Spatial 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
openaire   +1 more source

Low loss mode multiplexer de-multiplexer for mode division multiplexing over two mode fiber

2015 Workshop on Recent Advances in Photonics (WRAP), 2015
Mode 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
openaire   +1 more source

Bidirectional mode-division multiplexers with antireflection gratings

Applied Optics, 2018
A 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 ...
openaire   +2 more sources

Multiplexing and switching for mode division multiplexed optical interconnects

2016 Progress in Electromagnetic Research Symposium (PIERS), 2016
We 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
openaire   +1 more source

Numerical simulation of helical structure mode-division multiplexing with nonconcentric ring vortices

Optics Communications, 2019
Mode Division Multiplexing (MDM) increases aggregate capacity and improves spectral efficiency when used with wavelength division multiplexing (WDM).
Yousef Fazea
semanticscholar   +1 more source

Few-Mode Fibers for Space Division Multiplexing

Optical Fiber Communication Conference, 2016
Mode 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 ...
openaire   +2 more sources

Mode demultiplexing hybrids for mode-division multiplexing coherent receivers

Photonics Research, 2019
We propose a mode demultiplexing hybrid (MDH) that integrates mode demultiplexing, local oscillator power splitting, and optical 90-deg mixing using multi-plane light conversion (MPLC).
H. Wen   +4 more
semanticscholar   +1 more source

Home - About - Disclaimer - Privacy