Research of multiple wavelength light source based on super-continuous spectrum

摘要

In order to meet the requirements of the multi-wavelength light source of large-capacity, high-speed, long-distance optical communication system, we researched the multi-wavelength light source based on super-continuum (SC), analyzed the main factors in the SC generation, such as dispersion, nonlinear effects. The SC simulation and optimization around the input pulse width, peak power, fiber length, nonlinear coefficient parameters for analysis. The optimized results: SC input achieved 25 GHz repetition rate, amplified by high power EDFA, input average power did not exceed 33 dBm. The output of the SC 3 dB bandwidth was greater than 70 nm, after AWG, output 320 wavelengths, wavelength spacing is 0.2 nm(25 GHz), the signal-to-noise ratio was greater than 30dB.