Time-Delay Signature Suppression and Communications of Nanolaser Based on Phase Conjugate Feedback
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 genera...
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MDPI AG
2024-01-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/11/1/91 |
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| author | Hao Chen Penghua Mu Gang Guo Xintian Liu Pengfei He |
| author_facet | Hao Chen Penghua Mu Gang Guo Xintian Liu Pengfei He |
| author_sort | Hao Chen |
| collection | DOAJ |
| description | 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 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>F</mi></mrow></semantics></math></inline-formula>, spontaneous emission coupling factor <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>β</mi></mrow></semantics></math></inline-formula>, and bias current <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>I</mi></mrow></semantics></math></inline-formula> 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. |
| first_indexed | 2024-03-08T10:37:09Z |
| format | Article |
| id | doaj.art-21e64b4645754e878c4249c0833217a3 |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-03-08T10:37:09Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-21e64b4645754e878c4249c0833217a32024-01-26T18:09:58ZengMDPI AGPhotonics2304-67322024-01-011119110.3390/photonics11010091Time-Delay Signature Suppression and Communications of Nanolaser Based on Phase Conjugate FeedbackHao Chen0Penghua Mu1Gang Guo2Xintian Liu3Pengfei He4School of Physics and Electronic Information, Yantai University, Yantai 264005, ChinaSchool of Physics and Electronic Information, Yantai University, Yantai 264005, ChinaFISEC information Technology Company Limited, Weihai 264200, ChinaFISEC information Technology Company Limited, Weihai 264200, ChinaSchool of Physics and Electronic Information, Yantai University, Yantai 264005, ChinaThe 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 <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>F</mi></mrow></semantics></math></inline-formula>, spontaneous emission coupling factor <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>β</mi></mrow></semantics></math></inline-formula>, and bias current <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mi>I</mi></mrow></semantics></math></inline-formula> 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.https://www.mdpi.com/2304-6732/11/1/91nanolaserchaostime-delay signaturecommunication |
| spellingShingle | Hao Chen Penghua Mu Gang Guo Xintian Liu Pengfei He Time-Delay Signature Suppression and Communications of Nanolaser Based on Phase Conjugate Feedback Photonics nanolaser chaos time-delay signature communication |
| title | Time-Delay Signature Suppression and Communications of Nanolaser Based on Phase Conjugate Feedback |
| title_full | Time-Delay Signature Suppression and Communications of Nanolaser Based on Phase Conjugate Feedback |
| title_fullStr | Time-Delay Signature Suppression and Communications of Nanolaser Based on Phase Conjugate Feedback |
| title_full_unstemmed | Time-Delay Signature Suppression and Communications of Nanolaser Based on Phase Conjugate Feedback |
| title_short | Time-Delay Signature Suppression and Communications of Nanolaser Based on Phase Conjugate Feedback |
| title_sort | time delay signature suppression and communications of nanolaser based on phase conjugate feedback |
| topic | nanolaser chaos time-delay signature communication |
| url | https://www.mdpi.com/2304-6732/11/1/91 |
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