I want to design a ring resonator delay system to provide different time delay depending on a control unit, I used ring resonator modulator as a filter to switch between the on and off states of the ring . In time delay simulation , an optical pulses in a return-to-zero (RZ) format is transmitted through the delay unit. The desired time delay has been obtained, but I had two problems in the output data stream:
I didn’t know why the amplitude of the output delayed data (from Osc 3) is larger than the amplitude of the input data pulses (from Osc 1)?
in addition to that the output delayed data has side peaks appearing along with the delayed pulses, why these side peaks appears and how can avoid the distortion due to the peaks ?
attached my design file.
Thanks in advanced.