Pump-locked random lasers using artificial intelligence

Abstract Random lasing in complex disordered systems demonstrates efficient lasing across multiple localized modes. Accurate control of these modes could enable random lasers to function as fast-switching, multifunctional light sources. In this work, an unpredictable random laser was prepared and artificial intelligence (AI) technology was used for taming the lasing action. Lasing modes were precisely controlled by programming the spatial shape of the pump profile. Genetic algorithms were introduced, allowing any mode within the complex system to be extracted by setting a target value associated with that mode. Based on experimental results, the interaction model of pumping cells with lasing modes was locked. This work advances programmable random lasers, enhancing their potential for practical applications in signal processing, spectral sensing, communication, and optical computing.