Self-chaotic microlasers for random bit generation

Frontiers in Photonics

Photonics

Yong-Zhen Huang¹  Jin-Long Xiao¹  You-Zeng Hao¹  Yue-De Yang¹  Ya-Li Li¹  Chun-Guang Ma¹  Zhi-Xiong Xiao² 

[1] State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, China;Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, China;State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing, China;Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, China;Microelectronics Center Co., Ltd. (CUMEC), Chongqing, China;

关键词: semiconductor lasers;    chaos;    random bit;    whispering-gallery mode;    solitary laser;   

DOI  :  10.3389/fphot.2023.1138125

 received in 2023-01-05, accepted in 2023-02-14,  发布年份 2023

来源: Frontiers

【 摘 要 】

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

【 授权许可】

Unknown   
Copyright © 2023 Xiao, Xiao, Ma, Hao, Li, Yang and Huang.