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). |
(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. |