Controllable all-optical stochastic logic gates and their delay storages based on the cascaded VCSELs with optical-injection
Zhong Dongzhou†, , Luo Wei, Xu Geliang
       

For different injection strengths KMx, the bistabilities of the output x-polarizations ((a), (c)) and y-polarizations ((b), (d)) from the PPLN crystal and the S-VCSEL as a function of the detuning frequency between the CW laser and the M-VCSEL, Δω. The parameters are the same as those in Fig. 3.