But the bridge is co-simulation. Export the S-parameters from your FEM tool (e.g., COMSOL) as Touchstone files. Import them into OptiSystem’s "Optical S-Parameter" component. Now your realistic waveguide layout drives the system simulation.
Now enable the full nonlinear Manakov solver. Re-run the launch power sweep. At low power, you’ll match Step 2. At high power, BER will degrade above a certain threshold. That threshold (e.g., 0 dBm launch power per channel) is your nonlinear limit . In a WDM system, this threshold will drop by ~1 dB per extra channel due to XPM. optiwave optisystem
As we move beyond simple On-Off Keying (OOK), modulation schemes have become incredibly complex. OptiSystem includes libraries for: But the bridge is co-simulation
Why can't we just use standard circuit simulation software (like SPICE) for optics? Now your realistic waveguide layout drives the system
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