Simulation Research on the Coherence Properties of the Optical Fiber Source

Based on Wiener-Khinchin theorem and Fourier transform, the coherence functions and the relevant parameters of various spectrums can be obtained from the simulation program. Through the analysis on the coherence properties of different spectrums, we also acquire the influence on the spectrum coherence of its characteristic parameters, such as the centre wavelength and the width. For the broadband sources used in the IFOG, the paper provides an effective calculation approach to acquire the accurate coherence functions and coherence parameters, which can be further used to analyze and optimize the SFS spectrums.