Sensitivity Enhancement of Fault Detection Utilizing Feedback Compensation for Time-Delay Signature of Chaotic Laser
Fiber fault detection based on the time-delay signature of an optical feedback semiconductor laser has the advantages of high sensitivity, precise location, and a simple structure, which make it widely applicable. The sensitivity of this method is determined by the feedback strength inducing the non...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-06-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/12/7/641 |
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| author | Haoran Guo Hui Liu Min Zhang Xiaomin Guo Yuanyuan Guo Hong Han Tong Zhao |
| author_facet | Haoran Guo Hui Liu Min Zhang Xiaomin Guo Yuanyuan Guo Hong Han Tong Zhao |
| author_sort | Haoran Guo |
| collection | DOAJ |
| description | Fiber fault detection based on the time-delay signature of an optical feedback semiconductor laser has the advantages of high sensitivity, precise location, and a simple structure, which make it widely applicable. The sensitivity of this method is determined by the feedback strength inducing the nonlinear state of the laser. This paper proposes a feedback compensation method to reduce the requirement of the fault echo intensity for the laser to enter the nonlinear state, significantly enhancing detection sensitivity. Numerical simulations analyze the impact of feedback compensation parameters on fault detection sensitivity and evaluate the performance of the laser operating at different pump currents. The results show that this method achieves a 9.33 dB improvement in sensitivity compared to the original approach, effectively addressing the challenges of detecting faults with high insertion losses in optical networks. |
| format | Article |
| id | doaj-art-a848ceea7f4e4e268e03dbc68e918111 |
| institution | Matheson Library |
| issn | 2304-6732 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj-art-a848ceea7f4e4e268e03dbc68e9181112025-07-25T13:33:53ZengMDPI AGPhotonics2304-67322025-06-0112764110.3390/photonics12070641Sensitivity Enhancement of Fault Detection Utilizing Feedback Compensation for Time-Delay Signature of Chaotic LaserHaoran Guo0Hui Liu1Min Zhang2Xiaomin Guo3Yuanyuan Guo4Hong Han5Tong Zhao6Key Laboratory of Advanced Transducers and Intelligent Control System Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, ChinaKey Laboratory of Advanced Transducers and Intelligent Control System Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, ChinaKey Laboratory of Advanced Transducers and Intelligent Control System Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, ChinaKey Laboratory of Advanced Transducers and Intelligent Control System Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, ChinaKey Laboratory of Advanced Transducers and Intelligent Control System Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, ChinaKey Laboratory of Advanced Transducers and Intelligent Control System Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, ChinaKey Laboratory of Advanced Transducers and Intelligent Control System Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, ChinaFiber fault detection based on the time-delay signature of an optical feedback semiconductor laser has the advantages of high sensitivity, precise location, and a simple structure, which make it widely applicable. The sensitivity of this method is determined by the feedback strength inducing the nonlinear state of the laser. This paper proposes a feedback compensation method to reduce the requirement of the fault echo intensity for the laser to enter the nonlinear state, significantly enhancing detection sensitivity. Numerical simulations analyze the impact of feedback compensation parameters on fault detection sensitivity and evaluate the performance of the laser operating at different pump currents. The results show that this method achieves a 9.33 dB improvement in sensitivity compared to the original approach, effectively addressing the challenges of detecting faults with high insertion losses in optical networks.https://www.mdpi.com/2304-6732/12/7/641fiber fault locationsensitivity enhancementtime-delay signaturecompensation feedbackTDM-PON |
| spellingShingle | Haoran Guo Hui Liu Min Zhang Xiaomin Guo Yuanyuan Guo Hong Han Tong Zhao Sensitivity Enhancement of Fault Detection Utilizing Feedback Compensation for Time-Delay Signature of Chaotic Laser Photonics fiber fault location sensitivity enhancement time-delay signature compensation feedback TDM-PON |
| title | Sensitivity Enhancement of Fault Detection Utilizing Feedback Compensation for Time-Delay Signature of Chaotic Laser |
| title_full | Sensitivity Enhancement of Fault Detection Utilizing Feedback Compensation for Time-Delay Signature of Chaotic Laser |
| title_fullStr | Sensitivity Enhancement of Fault Detection Utilizing Feedback Compensation for Time-Delay Signature of Chaotic Laser |
| title_full_unstemmed | Sensitivity Enhancement of Fault Detection Utilizing Feedback Compensation for Time-Delay Signature of Chaotic Laser |
| title_short | Sensitivity Enhancement of Fault Detection Utilizing Feedback Compensation for Time-Delay Signature of Chaotic Laser |
| title_sort | sensitivity enhancement of fault detection utilizing feedback compensation for time delay signature of chaotic laser |
| topic | fiber fault location sensitivity enhancement time-delay signature compensation feedback TDM-PON |
| url | https://www.mdpi.com/2304-6732/12/7/641 |
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