“…Further, optical Nyquist OTDM transmission realizes ultra-high baud rate transmission due to the dense arrangement of the optical Nyquist pulses in the time domain that possess intersymbol interference free (ISI free) property [17,18,19,20,21]. Previously, several reports have demonstrated the generation [17,22,23,24] and detection [25,26] of the optical Nyquist pulse.…”