Semiconductor Optical Amplifier based Mach-Zehnder Interferometer
I want to verify the theoretical model of a 2*2 semiconductor optical amplifier based Mach-Zehnder interferometer (SOA-MZI) switch from the following paper link (<a href=”https://www.sciencedirect.com/science/article/abs/pii/S0030399209001388″ rel=”noopener” target=”_blank”>Mach–Zehnder interferometer-based all-optical reversible logic gate</a>) on OptiSystem, where two SOAs (SOA-1 and SOA-2) are inserted in each arm of MZI (as shown in Figure 1). The incoming signal pulse at the wavelength λ2 , enters port-1, is split equally by this coupler C1 (50:50) and propagates simultaneously in the two arms.No data is put into port-2, i.e., it is kept open. At the same time, pulsed signal at the wavelength λ1 enters the upper arm, through coupler C2 such that most power passes through the upper arm. It saturates the SOA-1 and changes its Index of refraction, while the SOA-2 gets the unsaturated gain. As a result, a differential phase shift can be achieved between the data signal of two arms. Hence, light is present in the bar port (Port 3). However, when no control signal is passed, both the SOAs get same unsaturated gain, resulting to the presence of light at the cross port (Port 4).
Is there any way in OptiSystem, such that the SOA results the phase change depending on the presence or absence of input.
I have designed the same structure on Optisystem. However, I am not able to decide on what parameters of SOAs, the structure will perform cross phase modulation which will results the desired outputs at both ports.
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