Results 221 to 230 of about 59,044 (257)
Some of the next articles are maybe not open access.
Coupled Few-Mode Multicore Fiber With Low Differential Mode Delay Characteristics
Journal of Lightwave Technology, 2017We investigate a coupled few-mode multicore fiber (FM-MCF) design to realize an ultrahigh spatial density space division multiplexing (SDM) transmission line with low differential mode delay (DMD) characteristics. We describe a super-mode-based FM-MCF design that takes account of the DMD between modes in the inter-linearly polarized (LP) mode group (e ...
Taiji Sakamoto +5 more
openaire +1 more source
Micro-bend-Resistant Low-Differential-Mode-Group-Delay Few-Mode Fibers
Journal of Lightwave Technology, 2017We report the design of micro-bend-resistant low-differential-mode-group-delay (low-DMGD) few-mode fibers that support up to six mode groups (12 LP modes, 21 spatial modes) and that are adapted to multiple-input multiple-output mode-division-multiplexed transmissions. Compared to previous designs, the micro-bending sensitivity is reduced by more than a
Pierre Sillard +2 more
exaly +3 more sources
Applied Optics, 2022
A measurement system of differential mode group delay (DMGD) in few-mode fiber with correlation optical time-domain reflection was proposed. A photonic lantern used in the system can be utilized for mode separation and selection and can generate six LP modes: L P 01 ,
Linqi, Jin +4 more
openaire +2 more sources
A measurement system of differential mode group delay (DMGD) in few-mode fiber with correlation optical time-domain reflection was proposed. A photonic lantern used in the system can be utilized for mode separation and selection and can generate six LP modes: L P 01 ,
Linqi, Jin +4 more
openaire +2 more sources
Differential Mode Delay Management in Spliced Multimode Fiber Transmission Systems
Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, 2013Influence of fiber splice to differential mode delay (DMD) in mode-division multiplexed fiber links is analyzed. We show that DMD managed links, even with significant mode coupling due to splices, strongly reduce the link DMD.
Feihong Ye, Stefan Warm, Klaus Petermann
openaire +2 more sources
A geometrical optics treatment of differential mode delay
Optical and Quantum Electronics, 1980We consider the problem of expressing the index of the refraction profile of a graded-index fibre or planar waveguide in terms of the results of differential mode delay measurements. We develop a perturbative solution to this problem within the context of geometrical optics by assuming that only meridional rays contribute experimentally.
openaire +1 more source
Optical Engineering, 1988
A method is described to characterize multimode fiber-optic devices in terms of differential mode attenuation (DMA), differential mode delay (DMD), and mode coupling. It is important to describe these complex properties with only a few data. This is accomplished by the mode transition matrix method, in which each fiber optic component is characterized ...
openaire +1 more source
A method is described to characterize multimode fiber-optic devices in terms of differential mode attenuation (DMA), differential mode delay (DMD), and mode coupling. It is important to describe these complex properties with only a few data. This is accomplished by the mode transition matrix method, in which each fiber optic component is characterized ...
openaire +1 more source
Experimental investigation of differential mode delay in multimode fiber links
SPIE Proceedings, 2013In this article experimental investigation of differential mode delay (DMD) of regular multimode fiber links is presented. Measurement of DMD depending on input conditions for multimode fiber of different generation are executed. The measurement technique is described. Analysis of received data is carried out.
Vladimir A. Burdin +3 more
openaire +1 more source
Differential mode group delay measurement for few-mode fibers based on cepstrum analysis
Optics LettersThe differential mode group delay (DMGD) among various modes in few-mode fibers (FMFs) is a critical parameter for characterizing FMFs’ channels. Therefore, achieving a convenient, fast, and accurate measurement of DMGD across the entire communication band for different modes is essential. In this work, we propose a novel, to the best of our knowledge,
Junpeng Liang +7 more
openaire +2 more sources
A Novel DoG-FMF Profile with Six LP Modes and Low Differential Mode Delay
2019 Novel Intelligent and Leading Emerging Sciences Conference (NILES), 2019In this paper, a novel difference of Gaussian (DoG) FMF profile index has been proposed supporting six linearly polarized (LP) modes for multiple-input multiple-output (MIMO)free transmission. The fiber parameters that meet the design consideration for low differential mode delay and large effective area have been investigated using the COMSOL multi ...
Hussein Seleem, Hani Adam, Mohammed Nasr
openaire +1 more source
Optical Fiber Communication Conference, 2012
We analyze two-mode transmission for 402-Gb/s 3MDM-PM-QPSK-OFDM modulation and different DMD values. We show that only with low-DMD fiber it is possible to effectively equalize mode coupling and bridge long-haul transmission distances.
Adriana Lobato +7 more
openaire +1 more source
We analyze two-mode transmission for 402-Gb/s 3MDM-PM-QPSK-OFDM modulation and different DMD values. We show that only with low-DMD fiber it is possible to effectively equalize mode coupling and bridge long-haul transmission distances.
Adriana Lobato +7 more
openaire +1 more source