Self-chaotic microlasers for random bit generation

Semiconductor lasers with optical feedback can produce plentiful non-linear dynamics, including periodic and chaotic oscillations, which are usually applied to microwave signals physical random number generation, respectively. Chaotic semiconductor especially successful in generating numbers compared pseudorandom generated by a computing process. We report self-chaotic microlaser based on the internal mode interaction of nearly degenerate modes. A special resonator is designed demonstrated two modes’ frequency intervals order GHz. These modes strong beating result chaos, bits obtained from laser output power at 10 Gb/s. Our proposals provide novel scheme generate chaos for high-speed generation.