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- Title
Time-Delay Signature Suppression and Communications of Nanolaser Based on Phase Conjugate Feedback.
- Authors
Chen, Hao; Mu, Penghua; Guo, Gang; Liu, Xintian; He, Pengfei
- Abstract
The nonlinear dynamics of nanolasers (NLs), an important component of optical sources, has received much attention. However, there is a lack of in-depth research into the high-quality chaotic output of NLs and their applications in chaotic secure communications. In this paper, we make the NLs generate broadband chaotic signals whose time-delay signatures (TDS) are completely hidden by a phase conjugate feedback structure. And in the two-channel communication scheme, we make the NLs achieve a combination of a low-latency high degree of synchronization and two-channel transmission technique, which enhances the security of message encryption and decryption. We also investigate the effects of system parameters, Purcell factor F , spontaneous emission coupling factor β , and bias current I on the TDS, as well as the effects of parameter mismatch and injection parameters on chaos synchronization and message recovery. The results show that the phase conjugate feedback-based NLs can achieve the suppression of the TDS within a certain parameter range, and it can achieve high-quality synchronization and enhance the security of chaotic communication under appropriate injection conditions.
- Subjects
CHAOTIC communication; CHAOS synchronization; LIGHT sources; PSYCHOLOGICAL feedback; SYNCHRONIZATION; INJECTION molding
- Publication
Photonics, 2024, Vol 11, Issue 1, p91
- ISSN
2304-6732
- Publication type
Article
- DOI
10.3390/photonics11010091