Based on the differential equation describing an electrooptical bistable sy
stem with a delay in the feedback loop, a working region capable of realizi
ng large-capacity dynamic storage has been found, and a new type of bifurca
tion diagram is reported. The highest harmonic number, indicating the poten
tial capacity of dynamic storage, has been calculated numerically and analy
zed, The effects of the system's parameters and the white noise on the capa
city of dynamic storage have been explored theoretically.