Nyquist OTDM scheme using optical root-Nyquist pulse and optical correlation receiver

We propose a Nyquist optical time division multiplexing transmission scheme using optical root-Nyquist pulses and an optical correlation receiving technique. This scheme can satisfy the Nyquist criterion for zero inter-symbol interference and an optimum detection to maximize the signal-to-noise ratio. Moreover, the processing speed can exceed the speed limitation of electrical devices. We describe the principle and discuss the dispersion tolerance by numerical simulation.