An efficient split-step optical fiber simulation package with global simulation accuracy control

A symmetric split-step Fourier (SSSF) simulation model with global simulation accuracy control was developed so that the prescribed global simulation accuracy can be automatically achieved for the waveform level simulation of optical signal propagation through a single mode fiber. Combined with the novel control of the one-step or local simulation error, tens of times of enhancement in the computational efficiency can be achieved, compared to SSSF simulation method without step-size control. With new findings from the optimization of the scaling factor of the local error bound for the dispersion compensation fiber (DCF), the simulation package can significantly speed up the time-consuming simulations which are typical in coherent optical fiber communication system design for systems with inline DCF.