Processing-Speed Enhancement in a Delay-Laser-Based Reservoir Computer by Optical Injection

A delay-laser-based reservoir computer (RC) usually has its processing speed limited by the transient response of laser dynamics. Here, we study a simple all-optical approach to enhancing introducing optical injection layer conventional RC that consists semiconductor with delay loop. Using injection, laser’s effectively accelerates due speeded carrier-photon resonance. In chaotic time-series prediction task, proposed achieves good performance in flexible range detuning frequency under sufficient rate. proper parameters, error is significantly reduced and stabilized when using high speed. For achieving below 0.006, enhances an order magnitude about 5 GSample/s. Moreover, extends advantage handwritten digit recognition task better word