Multi-Channel Vibration Measurements Based on a Self-Mixing Vertical-Cavity Surface-Emitting Laser Array
This paper studied a multi-channel self-mixing interferometric vibration measurement system based on a vertical-cavity surface-emitting laser array. A 1 × 8 laser array was utilized to irradiate multiple positions of a vibrating target to establish independent measurement channels. The reflected lig...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-02-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/12/3/178 |
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| author | Wei Xia Jingyu Yu Sunan Shao Zhengyu Qian Hui Hao Ming Wang Dongmei Guo |
| author_facet | Wei Xia Jingyu Yu Sunan Shao Zhengyu Qian Hui Hao Ming Wang Dongmei Guo |
| author_sort | Wei Xia |
| collection | DOAJ |
| description | This paper studied a multi-channel self-mixing interferometric vibration measurement system based on a vertical-cavity surface-emitting laser array. A 1 × 8 laser array was utilized to irradiate multiple positions of a vibrating target to establish independent measurement channels. The reflected light beams, carrying the vibration information of each position, were redirected back into the laser and coherently mixed with the original optical field, generating the self-mixing interference. The interferometric signals were measured by monitoring the junction voltage variations across the terminals of the VCSEL array. A denoising filtering method based on the variational mode decomposition with Hausdorff distance was proposed to improve the signal-to-noise ratio. Furthermore, the vibration waveforms of different positions were reconstructed using the Hilbert transform-based orthogonal phase demodulation technology. Both simulations on synthetic signals and experiments with real datasets were conducted to validate the feasibility and stability of the proposed method. Due to the array detection configuration, the system boasted a simple and compact structure, low power consumption, and easy extensibility, laying the groundwork for high accuracy and multi-dimensional vibration detection in industrial applications. |
| format | Article |
| id | doaj-art-cc7a580cd87445ca91a307b646b2e160 |
| institution | DOAJ |
| issn | 2304-6732 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj-art-cc7a580cd87445ca91a307b646b2e1602025-08-20T02:42:24ZengMDPI AGPhotonics2304-67322025-02-0112317810.3390/photonics12030178Multi-Channel Vibration Measurements Based on a Self-Mixing Vertical-Cavity Surface-Emitting Laser ArrayWei Xia0Jingyu Yu1Sunan Shao2Zhengyu Qian3Hui Hao4Ming Wang5Dongmei Guo6School of Computer and Electronic Information, Nanjing Normal University, Nanjing 210023, ChinaSchool of Computer and Electronic Information, Nanjing Normal University, Nanjing 210023, ChinaSchool of Computer and Electronic Information, Nanjing Normal University, Nanjing 210023, ChinaDivision of Dimensional Metrology, Jiangsu Institute of Metrology, Nanjing 210023, ChinaSchool of Computer and Electronic Information, Nanjing Normal University, Nanjing 210023, ChinaSchool of Computer and Electronic Information, Nanjing Normal University, Nanjing 210023, ChinaSchool of Computer and Electronic Information, Nanjing Normal University, Nanjing 210023, ChinaThis paper studied a multi-channel self-mixing interferometric vibration measurement system based on a vertical-cavity surface-emitting laser array. A 1 × 8 laser array was utilized to irradiate multiple positions of a vibrating target to establish independent measurement channels. The reflected light beams, carrying the vibration information of each position, were redirected back into the laser and coherently mixed with the original optical field, generating the self-mixing interference. The interferometric signals were measured by monitoring the junction voltage variations across the terminals of the VCSEL array. A denoising filtering method based on the variational mode decomposition with Hausdorff distance was proposed to improve the signal-to-noise ratio. Furthermore, the vibration waveforms of different positions were reconstructed using the Hilbert transform-based orthogonal phase demodulation technology. Both simulations on synthetic signals and experiments with real datasets were conducted to validate the feasibility and stability of the proposed method. Due to the array detection configuration, the system boasted a simple and compact structure, low power consumption, and easy extensibility, laying the groundwork for high accuracy and multi-dimensional vibration detection in industrial applications.https://www.mdpi.com/2304-6732/12/3/178self-mixing interferometryvibration measurementVCSEL array |
| spellingShingle | Wei Xia Jingyu Yu Sunan Shao Zhengyu Qian Hui Hao Ming Wang Dongmei Guo Multi-Channel Vibration Measurements Based on a Self-Mixing Vertical-Cavity Surface-Emitting Laser Array Photonics self-mixing interferometry vibration measurement VCSEL array |
| title | Multi-Channel Vibration Measurements Based on a Self-Mixing Vertical-Cavity Surface-Emitting Laser Array |
| title_full | Multi-Channel Vibration Measurements Based on a Self-Mixing Vertical-Cavity Surface-Emitting Laser Array |
| title_fullStr | Multi-Channel Vibration Measurements Based on a Self-Mixing Vertical-Cavity Surface-Emitting Laser Array |
| title_full_unstemmed | Multi-Channel Vibration Measurements Based on a Self-Mixing Vertical-Cavity Surface-Emitting Laser Array |
| title_short | Multi-Channel Vibration Measurements Based on a Self-Mixing Vertical-Cavity Surface-Emitting Laser Array |
| title_sort | multi channel vibration measurements based on a self mixing vertical cavity surface emitting laser array |
| topic | self-mixing interferometry vibration measurement VCSEL array |
| url | https://www.mdpi.com/2304-6732/12/3/178 |
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