Results 21 to 30 of about 4,245,502 (276)

Proposed Raised Cosine FMF for Dispersion Management in Next-Generation Optical Networks

open access: yesIEEE Photonics Journal, 2016
Spatial mode-division multiplexing (MDM) that exploits the emerging few-mode fiber (FMF) technology is one potential candidate for next-generation petabyte optical communication links.
Saleh Chebaane   +3 more
doaj   +1 more source

Dynamics Simulation and Experimental Investigation of Q-Switching in a Self-Mode-Locked Semiconductor Disk Laser

open access: yesIEEE Photonics Journal, 2022
Q-switching in a mode-locked laser not only makes the amplitude of every single output pulse unequal, but also limits the time width and peak power of output pulses.
Peng Zhang   +6 more
doaj   +1 more source

Theoretical studies on a (FGPM) system with Gaussian profile for a zero TCD SAW devices

open access: yesResults in Physics, 2017
We investigate the propagation of surface wave in a functionally graded piezoelectric material layer ZnO/AlN/ZnO on α-Al2O3 substrate in this study. The influence of buffer layer thickness on the temperature coefficient of delay (TCD) is studied.
Rim Gharsellaoui   +2 more
doaj   +1 more source

A Common-Mode Noise Suppression Filter for Gigahertz Differential Signals Based on Substrate Integrated Waveguide Resonators

open access: yesIEEE 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

Stability calculations for piecewise-smooth delay equations [PDF]

open access: yes, 2008
This paper describes a new method for computing the stability of nonsmooth periodic orbits of piecewise-smooth dynamical systems with delay. Stability computations for piecewise-smooth dynamical systems without delay have previously been performed using ...
Barton, DAW
core   +1 more source

Delay-induced dynamics and jitter reduction of passively mode-locked semiconductor lasers subject to optical feedback

open access: yesNew Journal of Physics, 2012
We study a passively mode-locked semiconductor ring laser subject to optical feedback from an external mirror. Using a delay differential equation model for the mode-locked laser, we are able to systematically investigate the resonance effects of the ...
C Otto   +4 more
doaj   +1 more source

Hole-Assisted Graded-Index Four-LP-Mode Fiber With Low Differential Mode Group Delay Over C+L Band

open access: yesIEEE Photonics Journal, 2016
In this paper, in order to achieve low differential mode group delay (DMGD) over the C+L band, we propose the hole-assisted graded-index few mode fiber (FMF) design supporting four nondegenerated linear polarized (LP) modes for a mode division ...
Jiajia Zhao   +5 more
doaj   +1 more source

Design and Analysis of Z-Trench-Assisted 9-LP-Mode Fiber With Low Differential Modal Group Delay and High Spatial Density

open access: yesIEEE 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

Approximate Solutions of Linearized Delay Differential Equations Arising from a Microbial Fermentation Process Using the Matrix Lambert Function

open access: yesJournal of Mathematical and Fundamental Sciences, 2016
In this paper we present approximate solutions of linearized delay differential equations using the matrix Lambert function. The equations arise from a microbial fermentation process in a metabolic system. The delay term appears due to the existence of a
Agus Yodi Gunawan   +2 more
doaj   +1 more source

A Novel Multi-Objective Optimization Based Evolutionary Algorithm for Optimize the Services of Internet of Everything

open access: yesIEEE Access, 2022
In the new era, the Internet of Everything (IoE) provides distributed services like data, processes, people, and things, etc. The services to the connected IoE significantly increase the time of service, workload, energy consumption, and delay.
Shailendra Pratap Singh   +3 more
doaj   +1 more source

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