Reconfigurable and Storable Chaotic Logic Operations in Drive-Response VCSELs With Optical Feedback

Abstract

Based on the system of drive-response vertical cavity surface emitting lasers (VCSELs) with optical feedback and the new electro-optic (EO) modulation theory, we propose a novel reconfigurable and storable logic operations scheme to perform the behaviors of flexible switching and delayed storage among different logic operations. Here, the optical feedback intensity is modulated into logic input, the applied electric field in drive system and response system are modulated into logical control signals, the logic output is decoded by threshold mechanism. When the logical control signal in drive system and response system remain equal and both of them satisfy different logic operation relationships with the logic inputs, the system can perform the mutual conversion and delayed storage among the logic operations such as AND, NAND, OR, NOR, XOR and XNOR. Furthermore, the half adder logic operations are also being realized. Finally, the influence of bit duration time and noise intensity on the reliability of the logic operations is analyzed, and the results indicate that the logic operations have good anti-noise performance.

High-Speed Optical Chaotic Data Selection Logic Operations with the Performance of Error Detection and Correction

“…By employing an outstanding mean comparison demodulation mechanism, we enable the optical chaotic data selection logic operations to achieve a maximum speed of up to 114 Gb/s. Additionally, leveraging the generalized chaos synchronization theory, the system is capable of accurately detecting and correcting errors in chaotic logic outputs, with a noise strength limit as high as 185 dBw, exceeding the noise strength limit reported in reference [28] by approximately 100 dBw. These research results have great applications and reference values for the construction of high-speed optical chaos computing architecture and the development of optical chaotic network communication systems.…”

“…Based on chaos synchronization theory, Yan implemented all-optical logic gates [12]. Our previous works focused on reconfigurable chaotic logic operations [27,28]. The above implementation of chaotic logic gates almost lacks error detection and correction capabilities.…”