Hello everyone,

I’m trying to model feedback system in Optisystem (see in figure of feedback system in below link). I’m new to this optisystem software, can somebody help in initializing feedback system. Since Mach Zehnder Modulator can not get modulating input signal from coupler for the first iteration(see figure in below link). It means for the first iteration modulator needs to be initialized with external source (may be matlab or elase i dont know exactly) along with bias input. Since the devices in the loop(RF and Optical) gets the output coupler feeds the modulating input to the modulator from the second iteration. So please help me how can I initialize my feedback system for the first iteration. please help me asap.

Thanks and regards

Surya

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