Unlike general-purpose circuit simulation tools, OptiSystem is specialized for . It solves the complex differential equations governing light propagation through fiber, signal processing in electrical domains, and the interactions between hundreds of components like lasers, modulators, amplifiers, and detectors.
EDFAs are not isotropic. Use the "Polarization-Dependent Gain (PDG)" model under the amplifier’s "Advanced" tab. Set PDG to ~0.05 dB (realistic for modern EDFAs). Then add a polarization scrambler before the amp. Without this, your simulation will show polarization hole burning artifacts that don't exist in a properly dithered system. optiwave optisystem
OptiSystem ships with a massive library of . These range from ideal blocks (perfect fibers with no loss) to measured data blocks (using actual manufacturer datasheets). Unlike general-purpose circuit simulation tools