Microrings can have different hysteresis characteristics at their different resonance frequencies. They can
be used as a multi-hysteresis optical component. In this paper an optical D-flip-flop circuit composed of a
single nonlinear passive microring coupled to two straight waveguide based on the Kerr effect is proposed. The proposed circuit can operate as an optical digital circuit which synchronizes input DATA with
the CLOCK of the circuit. A simple analytical model for hysteresis design and the transient analysis of the
proposed D-flip-flop are presented. According to our model, the switching time of the flip-flop is in the
order of 10 ps.
کلید واژگان :
D flipflop- Kerr effect- Microring -Optical bistability
