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Showing 1 to 8 of 8 for “"Split-step fourier method"”.
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Evaluation of Millimetre-wave Coherent Scattering from a Sea surface covered by Foam modelled as Sequences of Thin Phase-Scattering Screens using Split-Step Fourier Method
… inverse error function was obtained by Newton’s method. We estimated the BSD and bubble radii by assuming a geometric mean μg = 500μm and geometric standard deviation σg = 2.0. Three dimensional (3D) sphere packing approach was implemented for filling the air-bubbles in a cubic domain as we …
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Numerical Solutions to the Gross-Pitaevskii Equation for Bose-Einstein Condensates
… initial conditions is considered and choice of method (Split-Step Fourier method with Strang Splitting) is justied. Numerical simulations provide graphical evidence of properties of both focusing and nonfocusing cases.</p>
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Analysis and Characterization of Fiber Nonlinearities with Deterministic and Stochastic Signal Sources
… of validity is determined by comparing to the split-step Fourier method. In addition, it is shown mathematically that the perturbation approach is equivalent to the Volterra series approach. Secondly, root-mean-square (RMS) widths both in the time domain and in the frequency domain are modeled. …
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Variational Calculation of Optimum Dispersion Compensation for Nonlinear Dispersive Fibers
… be solved in closed form. Although, the split-step Fourier method can be used to numerically determine pulse properties from this nonlinear equation, numerical results are time consuming to obtain and provide limited insight into functional relationships and how to design input pulses. …
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Exploitation of fibre characteristics in temperature sensing and radio-over-fibre applications
… based on the in-house implementation of the split-step Fourier method applied to the generalised nonlinear Schrödinger equation. Further simulation study on the inter-modulation distortion in two-tone signal transmission has also been presented so as to show the effect of nonlinearity of one …
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Dynamical Reduced-Order Models for High-Dimensional Systems
… seen due to several persistent challenges. Many methods are intrusive and difficult to implement, lack traditional numerical guarantees such as convergence and stability, and cannot adapt to unforeseen dynamics. We seek to promote the adoption of reduced-order models (ROMs) by creating …
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Fiber Laser Based Nonlinear Spectroscopy
… nonlinear Schrödinger equation using the split-step Fourier method is demonstrated and investigation of optical soliton propagation in fibers is carried out. Other numerical methods, such as the finite difference time domain approach and spectral-split step Fourier methods are also …
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Nonlinear Interference Generation in Wideband and Disaggregated Optical Network Architectures
L'abstract è presente nell'allegato / the abstract is in the attachment