Results 251 to 260 of about 38,925 (285)

Efficient optical amplification for spatial division multiplexing

SPIE Proceedings, 2012
Spatial division multiplexing has been proposed for fiber capacity increase as an alternative to enhanced bandwidth efficiency by higher order modulation or wider wavelength bands. The commercial viability of this approach will depend strongly on the feasibility of cost and energy efficient optical amplification.
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Spatial-division multiplexed optical sensing using MCF and FMF

Advanced Photonics 2016 (IPR, NOMA, Sensors, Networks, SPPCom, SOF), 2016
The high quality multicore fiber and few-mode fiber are developed with reliable spatial-division multiplexer/demultiplexers for innovative fiber sensing applications including multi-parameter discrimination, distributed curvature and 3D shape sensing.
Ming Tanga, Zhiyong Zhao, Lin Gan, Hao Wu, Ruoxu Wang, Borui Li, Songnian Fu, Shuang Liu, Deming Liu, Huifeng Wei, Weijun Tong   +10 more
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Compact Spatial Division Multiplexing with Dielectric Metasurfaces

CLEO 2024
Compact, integrated, and scalable devices are critical for future high-density optical communication applications. Here, we review our recent results demonstrating di-electric metasurfaces devices for mode-division multiplexing in few-mode fibers and free-space coupling into multi-core fibers.
Paulo Dainese, Jaewon Oh, Jun Yang, Louis Marra, Ahmed H. Dorrah, Alfonso Palmieri, Federico Capasso   +6 more
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Optical Spatial Division Multiplexing for Ultra-High-Capacity Modular Data Centers

Optical Fiber Communication Conference, 2016
We propose and evaluate four optical interconnect architectures based on spatial division multiplexing for ultra-high capacity modular data centers. It is shown in which way the best option depends on the network load and size.
Fiorani, Matteo, TORNATORE, MASSIMO, Chen, Jiajia, Wosinska, Lena, Mukherjee, Biswanath   +4 more
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Petabit-class Optical Networks Based on Spatial-Division Multiplexing Technologies

2020 International Conference on Optical Network Design and Modeling (ONDM), 2020
We have developed a spatial division multiplexing (SDM) based hierarchical optical switching test-bed capable of handling optical signals with elastic granularity from 10 Tb/s to 1 Pb/s. We have demonstrated some network scenarios of add/drop, express, protection switching, optical channel grooming and SDM tributaries with coupled and uncoupled spatial
Hideaki Furukawa, Ruben S. Luis
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Reduced Search Space Scheme for Detection of Spatial Division Multiplexing

2005 IEEE 61st Vehicular Technology Conference, 2005
We introduce a suboptimal detection scheme for spatial division multiplexing (SDM) using multiple transmit and receive antennas. As a conventional detection method, zero-forcing (ZF) detection shows inferior performance to the optimal maximum likelihood (ML) scheme because it does not exploit the pattern of the weighted noise characterized by singular ...
null Heejung Yu, null Taehyun Jeon, null Sok-Kyu Lee   +2 more
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Peta Bit Per Second Optical Transmission with Spatial Division Multiplexing

2017 European Conference on Optical Communication (ECOC), 2017
Recent progress on space division multiplexed optical transmission is reviewed. 2.05 peta bit/s transmission with 114 spatial multiplecity, ultra-high aggregate spectral efficiency of 947 bit/s/Hz and long haul transmission over 6160km with 200 Gbit/s channel bit rate have been achieved.
Masatoshi Suzuki, Itsuro Morita, Takehiro Tsuritani   +2 more
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High capacity optical transmission systems using spatial division multiplexing technology

2015 International Conference on Photonics in Switching (PS), 2015
We review system aspects of few-mode fiber transmission. Mode-dependent loss is difficult to manage and will likely require periodic mode-scrambling. FMF can be deployed first in short reach applications where high spatial density is beneficial, with elliptical-core FMFs being an attractive solution.
Ezra Ip, Giovanni Milione, Neda Cvijetic, null Yue-Kai Huang, Ming-Jun Li, John Downie   +5 more
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Image contrast and resolution in holographic multiplexing by spatial division

Optics Communications, 1974
An analysis of the effects of two different techniques of spatial-division multiplexing on the quality of the image reconstructed by the hologram of a diffusing object is presented, along with some experimental results obtained with a coherent optical system under diffraction-limited conditions.
P. Hariharan, Z.S. Hegedus
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Integrated Spatial Division (De)Multiplexer for Few-Mode Fiber Transmission

18th Italian National Conference on Photonic Technologies (Fotonica 2016), 2016
A reconfigurable Photonic Integrated Circuit for mode multiplexing and demultiplexing in a few-mode fiber is proposed and demonstrated. The circuit allows to selectively excite and demultiplex modes LP10 and LP11a with an estimated efficiency in the order of -6 dB and modedependent losses smaller than 1 dB. Mode cross-talk is measured as low as -20 dB.
MELATI, DANIELE, Alippi, A., MELLONI, ANDREA IVANO   +2 more
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