Organic optocoupler (OOC) or organic photocoupler, optical coupler is a novel and one of the most promising organic optoe-lectronic devices for its well electrical isolation and anti-jamming ability in long-distance and real-time digital communications. igital communica-tions. The performance parameters of OOC were greatly raised during the past decade, and its development was strongly asso-ciated with basic organic devices such as organic light emitting diodes (OLED), organic photodiodes (OPD) and organic pho- otransistors (OPT) etc. It is shown that the use of such structures is largely limited due to the time drift of parameters and temperature instability. The LED receives an electrical signal and emits light proportional to that signal.