Welcome to the NLSE Solver

About the Simulator

This tool simulates the propagation of ultrashort optical pulses in nonlinear fibers by numerically solving the generalized Nonlinear Schrödinger Equation (GNLSE) using the Split-Step Fourier Method (SSFM). It accounts for higher-order chromatic dispersion ($\beta_2, \beta_3, \beta_4$), Kerr nonlinearity ($\gamma$), fiber loss, Stimulated Raman Scattering (SRS), and self-steepening effects. Use it to analyze soliton dynamics, pulse compression, and spectral broadening in real-time.

Please note this python webapp runs on a paid server with limited computational resources. To prevent timeouts and ensure stability, strict hard limits are enforced on some simulation parameters (e.g., Grid N ≤ 2¹⁶, Steps ≤ 1000).

To bypass these limits and run high-resolution, computation-heavy simulations, please download the source code and run the application locally on your own machine.

Launch the calculator using the button above.