Results 261 to 270 of about 532,284 (336)

Normal group-velocity dispersion Kerr frequency comb.

Optics Letters, 2012
We show via numerical simulation that Kerr frequency combs can be generated in a nonlinear resonator characterized with normal group-velocity dispersion. We find the spectral shape of the comb and temporal envelope of the corresponding optical pulses formed in the resonator.
A. Matsko, A. Savchenkov, L. Maleki
semanticscholar   +3 more sources

On the conformable nonlinear schrödinger equation with second order spatiotemporal and group velocity dispersion coefficients

, 2021
In this paper, exact traveling wave solutions of the conformable differential equations have been examined. By means of the wave transformation and properties of the conformable derivative (CV), conformable nonlinear Schrodinger equation (CNLSE) has been
H. Rezazadeh, Meryem Odabaşı, K. U. Tariq, R. Abazari, H. Baskonus   +4 more
semanticscholar   +1 more source

Automatically Extracting Surface-Wave Group and Phase Velocity Dispersion Curves from Dispersion Spectrograms Using a Convolutional Neural Network

Seismological Research Letters, 2022
To image high-resolution crustal and upper-mantle structures, ambient noise tomography (ANT) has been widely used on local and regional dense seismic arrays.
Shaobo Yang, Haijiang Zhang, Ning Gu, Ji Gao, Jian Xu, Jiaqi Jin, Junlun Li, H. Yao   +7 more
semanticscholar   +1 more source

Dynamics of localized dissipative structures in a generalized Lugiato-Lefever model with negative quartic group-velocity dispersion.

Optics Letters, 2020
We study localized dissipative structures in a generalized Lugiato-Lefever equation, exhibiting normal group-velocity dispersion and anomalous quartic group-velocity dispersion.
O. Melchert, A. Yulin, A. Demircan
semanticscholar   +1 more source

Raman solitons with group velocity dispersion

Physical Review E, 2006
We consider the coupled propagation of the pump and Stokes waves in a Raman active medium accounting for the group velocity walk off and group velocity dispersion. Interplay of the Raman coherence and the dispersion can lead to the formation of a complete band gap in the spectrum of linear waves consisting of the two consecutive subgaps located at ...
D V, Skryabin, A V, Yulin
openaire   +2 more sources

Tuning group-velocity dispersion by optical force

Optics Letters, 2013
We propose an optomechanical approach for dispersion dynamic tuning and microengineering by taking advantage of the optical force in nano-optomechanical structures. Simulations of a suspended coupled silicon waveguide show that the zero-dispersion wavelength can be tuned by 40 nm by an optical pump power of 3 mW.
Wei C, Jiang, Qiang, Lin
openaire   +2 more sources

Analysis of group-velocity dispersion of high-frequency Rayleigh waves for near-surface applications

Journal of Applied Geophysics, 2011
Yinhe Luo, J. Xia, Yixian Xu, C. Zeng
semanticscholar   +3 more sources

Group velocity dispersion in asymmetric slab guide

Applied Optics, 1989
Calcul de la dispersion de la vitesse de groupe dans les guides d'onde multicouches asymetriques a fort ...
A, Dienes, Y, Peng, A, Knoesen
openaire   +2 more sources

Group-velocity dispersion in photonic crystal fibers

Optics Letters, 1998
The dispersion properties of photonic crystal fibers are calculated by expression of the modal field as a sum of localized orthogonal functions. Even simple designs of these fibers can yield zero dispersion at wavelengths shorter than 1.27 mum when the fibers are single mode, or a large normal dispersion that is suitable for dispersion compensation at ...
D, Mogilevtsev, T A, Birks, P S, Russell
openaire   +2 more sources

Dispersion, group velocity, and multisymplectic discretizations

Mathematics and Computers in Simulation, 2009
The authors consider the dispersive properties of multisymplectic discretization of linear wave and the sine Gordon equations. In particular a leapfrog in space and time scheme and the Preissman box scheme is considered. They find the numerical dispersions are monotonic and that the sign of the group velocity is preserved but for the nonsymplectic ...
Schober, C. M., Wlodarczyk, T. H.
openaire   +2 more sources