Results 11 to 20 of about 59,667 (255)

Differential Single-Crystal Waveguide Ultrasonic Temperature Measurements Based on Magnetostriction [PDF]

Micromachines
In extremely harsh high-temperature environments in aerospace, industrial manufacturing and other fields, traditional ultrasonic temperature measurement technology has certain limitations.
Yanlong Wei, Gang Yang, Gao Wang, Haijian Liang, Hui Qi, Xiaofang Mu, Zhen Tian, Fujiang Yuan, Qianxiang Zhang   +8 more
doaj   +2 more sources

New Silica Laser-Optimized Multimode Optical Fibers with Extremely Enlarged 100-μm Core Diameter for Gigabit Onboard and Industrial Networks

Fibers, 2020
We present new type of silica graded index laser-optimized multimode optical fibers (LOMF) with extremely enlarged core diameter up to 100 μm and “typical” “telecommunication” cladding diameter 125 μm. This optical fiber
Vladimir A. Burdin, Michael V. Dashkov, Vladimir V. Demidov, Konstantin V. Dukelskii, Alexander S. Evtushenko, Artem A. Kuznetsov, Alexandra S. Matrosova, Oleg G. Morozov, Egishe V. Ter-Nersesyants, Alexander A. Vasilets, Elena S. Zaitseva, Alexander E. Zhukov, Anton V. Bourdine   +12 more
doaj   +1 more source

A new Network Simulation Method for the characterization of delay differential equations

Ain Shams Engineering Journal, 2023
In this work, we provide for the first time the characterization of delay terms in systems of delay differential equations within the frame of the Network Simulation Method, a procedure that sets a formal equivalence between the system of differential ...
Manuel Caravaca Garratón, María del Carmen García-Onsurbe, Antonio Soto-Meca   +2 more
doaj   +1 more source

Inverse Saturable Absorption Mechanism in Mode-Locked Fiber Lasers with a Nonlinear Amplifying Loop Mirror

Photonics, 2023
From the perspective of the differential phase delay experienced by the two counterpropagating optical fields, the self-starting of the mode-locked fiber laser with a non-linear amplifying loop mirror (NALM) is theoretically studied.
Xiang Zhang, Yong Shen, Xiaokang Tang, Qu Liu, Hongxin Zou   +4 more
doaj   +1 more source

Design of Silica Multimode Optical Fibers with Extremely Enlarged Core Diameter for Laser-Based Multi-Gigabit Short-Range Optical Networks

Photonics, 2018
This work presents an alternative fast and simple method for the design of a refractive index profile of silica multimode optical fibers (MMFs) with extremely enlarged core diameters of up to 100 µm for laser-based multi-gigabit short-range optical
Anton V. Bourdine, Vladimir A. Burdin, Vijay Janyani, Ashish Kumar Ghunawat, Ghanshyam Singh, Alexander E. Zhukov   +5 more
doaj   +1 more source

Dependence of Dynamics of a System of Two Coupled Generators with Delayed Feedback on the Sign of Coupling

Mathematics, 2020
In this paper, we study the nonlocal dynamics of a system of delay differential equations with large parameters. This system simulates coupled generators with delayed feedback. Using the method of steps, we construct asymptotics of solutions.
Alexandra Kashchenko
doaj   +1 more source

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

IEEE 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, Habib Fathallah, Hussein Seleem, Mohsen Machhout   +3 more
doaj   +1 more source

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

IEEE 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, Renjiang Zhu, Tao Wang, Yadong Wu, Cunzhu Tong, Lijie Wang, Yanrong Song   +6 more
doaj   +1 more source

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

Results 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, Farid Takali, Anouar Njeh   +2 more
doaj   +1 more source

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

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