- - - Al-Esraa University College, Iraq
- - - Al-Esraa University College, Iraq
- - - Al-Esraa University College, Iraq
- - - Al-Esraa University College, Iraq

 Numerically and experimentally the full synchronization of ۲\times ۲ optoelectronic device network. By the using of ۲\times ۲ oscillator's network, every one of the oscillators has been considered as optocoupler (i.e. LED that has been coupled with photodetector). By fixing the strength of the feedback (\mathcal{E}) and increasing the current of the bias (\delta) of every one of the oscillators, the dynamic sequence like chaotic and periodic mixed-mode oscillations has been observed. Synchronization of unidirectionally coupled optoelectronic devices network has been featured when bias current equal to ۴.۴\times ۱۰^{-۴}. Transitions between the synchronization and the non-synchronization states through spatiotemporal distributions have been investigated.

LED, Chaos, feedback, Synchronization