Matlab simulation on femtosecond laser spectrum division in optical A/D converters

A 120 GS/s optical sampling clock in A/D converter is introduced, and the method of generating such a sampling clock and an optical oscilloscope based on the sampling clock are demonstrated. Matlab simulation is used to realize the division and multiplexing of femtosecond lasers spectrum, and the problems in using the generated optical sequence to sample are discussed. The simulation result of Matlab is compared with that of Optisystem, and finally the attenuation rate of the optical sampling sequence calculated by Matlab is used to optimize the sequence simulated by Optisystem.