80 GBd 16 QAM Reception with Time Switched Dual Frequency Local Oscillator 80 GSa/s 33 GHz Bandwidth Oscilloscope

We have demonstrated a scheme for optical extension of a real time oscilloscopes bandwidth and sampling rate. A time switched dual frequency local oscillator allowed for reception of a 80 GBd 16 QAM signal with a real-time oscilloscope having 80 GSa/s and 33 GHz electrical bandwidth.