Study on Laser Parameter Measurement System Based on Cone-Arranged Fibers and CCD Camera
This paper proposes a new laser parameter measuring method based on cone-arranged fibers to further improve the measurable spot size, allowable incident angle range, and spatial sampling resolution. This method takes a conical array composed of flexible fibers to sample and shrink the cross-section...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-10-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/22/20/7892 |
| _version_ | 1797470013260562432 |
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| author | Jie Luo Laian Qin Zaihong Hou Silong Zhang Wenyue Zhu Wenlu Guan |
| author_facet | Jie Luo Laian Qin Zaihong Hou Silong Zhang Wenyue Zhu Wenlu Guan |
| author_sort | Jie Luo |
| collection | DOAJ |
| description | This paper proposes a new laser parameter measuring method based on cone-arranged fibers to further improve the measurable spot size, allowable incident angle range, and spatial sampling resolution. This method takes a conical array composed of flexible fibers to sample and shrink the cross-section spot of the laser beam, facilitating low-distortion shooting with a charge-coupled diode (CCD) camera, and adopts homogenized processing and algorithm analysis to correct the spot. This method is experimentally proven to achieve high-accuracy measurements with a decimeter-level spot-receiving surface, millimeter-level resolution, and high tolerance in order to incite skew angle. Comparing the measured spot under normal incidence with the real one, the root mean square error (RMSE) of their power in the bucket (PIB) curves is less than 1%. When the incident angle change is between −8° and 8°, the RMSE is less than 2% and the measurement error of total power is less than 5% based on the premise that the fiber’s numerical aperture (NA) is 0.22. The possibility of further optimizing the measurement method by changing the fiber parameters and array design is also reported. |
| first_indexed | 2024-03-09T19:30:44Z |
| format | Article |
| id | doaj.art-7647dc3b8f5a4803afdc6d5f00c7028b |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T19:30:44Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-7647dc3b8f5a4803afdc6d5f00c7028b2023-11-24T02:28:07ZengMDPI AGSensors1424-82202022-10-012220789210.3390/s22207892Study on Laser Parameter Measurement System Based on Cone-Arranged Fibers and CCD CameraJie Luo0Laian Qin1Zaihong Hou2Silong Zhang3Wenyue Zhu4Wenlu Guan5School of Environmental Science and Optoelectronic Technology, University of Science and Technology of China, Hefei 230026, ChinaKey Laboratory of Atmospheric Optics, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, ChinaKey Laboratory of Atmospheric Optics, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, ChinaKey Laboratory of Atmospheric Optics, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, ChinaSchool of Environmental Science and Optoelectronic Technology, University of Science and Technology of China, Hefei 230026, ChinaSchool of Environmental Science and Optoelectronic Technology, University of Science and Technology of China, Hefei 230026, ChinaThis paper proposes a new laser parameter measuring method based on cone-arranged fibers to further improve the measurable spot size, allowable incident angle range, and spatial sampling resolution. This method takes a conical array composed of flexible fibers to sample and shrink the cross-section spot of the laser beam, facilitating low-distortion shooting with a charge-coupled diode (CCD) camera, and adopts homogenized processing and algorithm analysis to correct the spot. This method is experimentally proven to achieve high-accuracy measurements with a decimeter-level spot-receiving surface, millimeter-level resolution, and high tolerance in order to incite skew angle. Comparing the measured spot under normal incidence with the real one, the root mean square error (RMSE) of their power in the bucket (PIB) curves is less than 1%. When the incident angle change is between −8° and 8°, the RMSE is less than 2% and the measurement error of total power is less than 5% based on the premise that the fiber’s numerical aperture (NA) is 0.22. The possibility of further optimizing the measurement method by changing the fiber parameters and array design is also reported.https://www.mdpi.com/1424-8220/22/20/7892laser parameterarray fibersCCD cameraintegrated opticsPIB |
| spellingShingle | Jie Luo Laian Qin Zaihong Hou Silong Zhang Wenyue Zhu Wenlu Guan Study on Laser Parameter Measurement System Based on Cone-Arranged Fibers and CCD Camera Sensors laser parameter array fibers CCD camera integrated optics PIB |
| title | Study on Laser Parameter Measurement System Based on Cone-Arranged Fibers and CCD Camera |
| title_full | Study on Laser Parameter Measurement System Based on Cone-Arranged Fibers and CCD Camera |
| title_fullStr | Study on Laser Parameter Measurement System Based on Cone-Arranged Fibers and CCD Camera |
| title_full_unstemmed | Study on Laser Parameter Measurement System Based on Cone-Arranged Fibers and CCD Camera |
| title_short | Study on Laser Parameter Measurement System Based on Cone-Arranged Fibers and CCD Camera |
| title_sort | study on laser parameter measurement system based on cone arranged fibers and ccd camera |
| topic | laser parameter array fibers CCD camera integrated optics PIB |
| url | https://www.mdpi.com/1424-8220/22/20/7892 |
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