Correlation coefficient of nanolaser based on quantum dot semiconductor laser through optoelectronic feedback an open-loop system

The optical chaos was produced for nanolasers quantum dot semiconductor laser using time-delayed and optoelectronic feedback, and chaotic synchronization for two system was performed via injection of a signal from the transmitter to receiver. Results showed that identical pumping current density between transmitter and receiver nanolasers based and using delay generation between transmitter and receiver signal enabled successful chaotic synchronization in this open-loop system. The quality of chaos synchronization is presented through calculation of correlation coefficients between transmitter and receiver signals; the best quality of chaos synchronization was obtained when the correlation coefficient between the two chaotic signals was 0.9724 with a feedback strength value of in an open-loop system, demonstrating its effectiveness for use in various applications requiring reliable communication systems with high levels of security.