Simulation of multi-channel AM-VSB CATV optical link employing semiconductor optical amplifier as an external modulator

It is shown numerically that by using a TWSOA as an analog external modulator, a system power budget of 17 dB is attained for a 42-channel AM-VSB CATV system within an octave of frequency range, from 300 to 546 MHz, while delivering a 50-dB CNR and less than -60 dBc CTB distortion.