Acta Optica Sinica, Volume. 42, Issue 22, 2214001(2022)
Chaos Generation in Semiconductor Laser with Random Digital Optical Injection
This paper proposes and numerically studies a scheme of chaos generation in semiconductor lasers with random-digital-phase-modulated optical injection. The simulation results demonstrate that as the modulation rate or modulation depth increases, the laser state changes from injection-locking to chaotic through a quasi-periodic route due to the excitation of undamped relaxation oscillation by the phase change. Chaotic laser with an effective bandwidth over 10 GHz can be generated by random-digital-phase-modulated optical injection. Given the anti-interference capability of digital signals in long-distance transmission, the proposed scheme provides a new approach for long-distance chaos synchronization and key distribution.
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Xiaohui Peng, Yicheng Du, Hua Gao, Longsheng Wang, Anbang Wang. Chaos Generation in Semiconductor Laser with Random Digital Optical Injection[J]. Acta Optica Sinica, 2022, 42(22): 2214001
Category: Lasers and Laser Optics
Received: May. 16, 2022
Accepted: Jun. 4, 2022
Published Online: Nov. 7, 2022
The Author Email: Wang Anbang (wanganbang@tyut.edu.cn)