Results 1 to 10 of about 46,271 (140)
Few-Mode Fibers With Uniform Differential Mode Group Delay for Microwave Photonic Signal Processing [PDF]
IEEE Access, 2020 We present a novel design of few-mode fiber (FMF) with a uniform differential mode group delay (U-DMGD) among propagating modes and apply the FMF to a single-fiber delay line module for implementing microwave photonic finite impulse response (FIR ...
Jian Zhao +5 more
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On-chip differential mode group delay manipulation based on 3D waveguides
ChipMode-division multiplexing based on few-mode optical fiber is a promising technology to increase the transmission capacity of optical communication systems, where multi-input multi-output (MIMO) digital signal processing (DSP) is employed to (de ...
Xiaofeng Liu +6 more
doaj +4 more sources
A Compact Dual-Band Differential Negative Group Delay Circuit With Wideband Common Mode Suppression
IEEE Journal of Microwaves, 2022 A compact dual-band differential negative group delay (DNGD) circuit with wideband common mode suppression is proposed. Two small 180° phase shift swap structures of double-sided parallel striplines (DSPS) are adopted to realize intrinsic wideband
Zhongbao Wang +3 more
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Modified S2 schemes for estimating differential mode group delay in polarization-maintaining few-mode fiber [PDF]
Optical Fiber Technology, 2022 In the mode-division-multiplexed (MDM) system, the few-mode fiber (FMF) replaces the single-mode fiber (SMF) as the transmission medium, to increase the per-fiber transmission capacity. The polarization-maintaining few-mode fiber (PM-FMF) can greatly enhance the optical communication system, since it can both preserve the polarization state and allow ...
Xu, Jinsheng, Zhao, Jian, Xu, Tianhua
exaly +2 more sources
Analysis and optimization of few-mode fibers with low differential mode group delay by variational method [PDF]
Acta Physica Sinica, 2022 Mode-division multiplexing (MDM) technology based on few-mode fibers (FMFs) is the current research hotspot of optical fiber communication system because of its ability to increase the transmission capacity several times. When the number of multiplexed modes is large, the crosstalk between modes can be removed by multiple input multiple output digital ...
Jian Wang, Chong-Qing Wu
openaire +1 more source
IEEE Access, 2023 We present a novel Z-trench-assisted (Z-TA) graded index 9-LP-mode fiber that significantly suppresses the maximum absolute differential modal group delay (Max $\vert $ DMGD $\vert$ ) while obtaining a high normalized spatial density (NSD).
Yuheng Xie +4 more
doaj +1 more source
Photonics, 2023 In this paper, we report the use of crossed polarizer technique to measure the differential group delay (DGD) of few-mode optical fiber (FMF). The windowed Fourier transform (WFT) is applied in the analysis of beat length measurement in the spectral ...
Cheng Wu +7 more
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Periodic modes of group dominance in fully coupled neural networks [PDF]
Известия высших учебных заведений: Прикладная нелинейная динамика, 2021 Nonlinear systems of differential equations with delay, which are mathematical models of fully connected networks of impulse neurons, are considered.
Glyzin, Sergey Dmitrievich +1 more
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Supermode Characteristics of Nested Multiple Hollow-Core Anti-Resonant Fibers
Photonics, 2022 Mode-division multiplexing (MDM) can achieve ultra-high data capacity in optical fiber communication. Several impressive works on multicore fiber (MCF), multi-mode fiber, and few-mode multicore fiber have made significant achievements in MDM.
Zequan Li +4 more
doaj +1 more source
IEEE Access, 2020 A common-mode noise suppression filter for microstrip differential lines based on substrate integrated waveguide resonator (SIWR) is proposed in this article. The proposed common-mode filter (CMF) consists of cascaded SIWR units with different size.
Xiao-Lai Li, Guomin Yang, Qinzhuo Chen
doaj +1 more source