Results 11 to 20 of about 59,044 (257)
Design of Few-Mode Fibers With M-modes and Low Differential Mode Delay [PDF]
Journal of Lightwave Technology, 2014 In this paper, we investigate the design of few-mode fibers (FMFs) guiding 2 to 12 linearly polarized (LP) modes with low differential mode delay (DMD) over the C-band, suitable for long-haul transmission. Two different types of refractive index profile have been considered: a graded-core with a cladding trench (GCCT) profile and a multi-step-index ...
Ferreira, Filipe +2 more
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Delay differential equations for mode-locked semiconductor lasers [PDF]
Optics Letters, 2004 We propose a new model for passive mode locking that is a set of ordinary delay differential equations. We assume a ring-cavity geometry and Lorentzian spectral filtering of the pulses but do not use small gain and loss and weak saturation approximations. By means of a continuation method, we study mode-locking solutions and their stability.
Kozyreff, Gregory +2 more
openaire +3 more sources
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 +4 more
doaj +1 more source
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
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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 +5 more
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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 +3 more
doaj +1 more source
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 +6 more
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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 +2 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
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New 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
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