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Last seen: circa un mese fa | Attivo dal 2022

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Domanda

Neumann boundary condition in a diagonal matrix
I am trying to increase the accuracy of my mode solver by reducing the size of the calculation space, to do that I apply Dirichl...

4 mesi fa | 3 risposte | 0

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Domanda

I can not say wether Eigs is giving expected results or not
Hello, I am building a little mode solver for optical fibers based on this article : "Jesper Riishede et al 2003 J. Opt. A: Pu...

4 mesi fa | 1 risposta | 0

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sinus wave with chosen number of variating period
Ok not sure that is the best way to do it but it works for me : define phi(z) as alpha*log(z) and dimension alpha the same way ...

5 mesi fa | 0

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Domanda

sinus wave with chosen number of variating period
Hi, I am trying to simulate a refractive index change in a medium, to do that I need to accurately model the evolution of said...

5 mesi fa | 1 risposta | 0

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Domanda

Why do I have "inside" oscillations when I take the fft of my data
Hi, I have a data sample that I need to take into the frequency domain, unfortunately I get these oscillations in between the a...

6 mesi fa | 0 risposte | 0

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Domanda

Write different super gaussian function with same fwhm but different order
Hi, I consider a gaussian pulse : how do I define in order to have . I did solve : leading to . But when I plot and measur...

11 mesi fa | 1 risposta | 0

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Domanda

Use rk4 (ode45) to get a solution on signals both contra and co propagating
Hi, I am trying to solve a system of equation where my solution vector looks like among which is contra propagating with resp...

circa un anno fa | 1 risposta | 0

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Domanda

Solving with ode45 with a solution dependant variable in the ode
Hi, Let's say I want to solve : with , with all following the same ode as y(z). I can theoretically solve each ode with RK4...

oltre un anno fa | 2 risposte | 0

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Domanda

Split step Fourier and shannon sampling theorem issue
Hi, I am building a code to model a laser with multiple step optical pulse amplifiers, however when I increase the gain I tend ...

oltre un anno fa | 0 risposte | 0

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Domanda

What happens if I change the parameters of a copy of a subsystem in simscape?
Hi, I am a beginner with Simscape and I am trying to model the heat evolution of the angled tip of a rod. To do that I separate...

oltre 2 anni fa | 1 risposta | 0

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Domanda

Solving Heat equation using pdepe does not give credible results
Hello, I am using pdepe to solve an heat equation, (the end goal being to simulate a fiber splicer and get the power input nece...

circa 3 anni fa | 1 risposta | 0

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