Reconfigurable dynamic all-optical chaotic logic operations in an optically injected VCSEL*

Project supported by the National Natural Science Foundation of China (Grant No. 61475120) and the Innovative Projects in Guangdong Colleges and Universities, China (Grant No. 2015KTSCX146).

Zhong Dong-Zhou, Xu Ge-Liang, Luo Wei, Xiao Zhen-Zhen
       

(color online) Schematic diagram of all-optical chaotic logic operations in an optically injected VCSEL, showing (a) principle block diagram; (b) detailed light paths; SG-DBR laser: sampled grating distributed Bragg reflector laser; VCSEL: vertical cavity surface emitting laser; IS: isolator; μ: normalized injection current of VCSEL; μ0: normalized injection current of SG-DBR laser; EAM: electric amplifier; PD: photo-detector; BS: beam splitter; PBS: polarization beam splitter; HWP: half-wave plate; FR: faraday rotator; CP: coupler; VA: variable attenuator; LPBF: low pass Bessel filter; FPGA: field programmable gate array; parameters σx* and σy*: thresholds of x-PC and y-PC respectively; i: electric signal.