Dear Ahmad,
Thank you for your kind response.
I am working with Optisystem 17.
I have checked the XOR-gate.osd example in OptiSystem Example Library. In this example both the signals are traveling independent path, i.e., in two different arms without coupling. Moreover, none of the input is acting as a control signal.
However, in my design both optical input signals (A and B) are coupled at coupler C2, where B act as the control signal. The presence and absence of control signal B decides the output at cross port (A.not(B)) and bar port (A.B), respectively.
I have attached my design (SOA-MZI.osd), where output at “Optical Time Domain Visualizer_9” and “Optical Time Domain Visualizer_2” should be equal to bar (A.B) and cross states (A.not(B)), respectively.
I appreciate your quick response.