Long Distance Measurement System by Optical Sampling Using a Femtosecond Laser
A long-distance measurement system is proposed in this paper, which is based on optical sampling using a femtosecond fiber laser. The measurement principle and the importance of dispersion compensation are theoretically analyzed in the time domain. By sweeping the repetition rate periodically, stabl...
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IEEE
2018-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/8466961/ |
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| author | Tianyu Zhang Xinghua Qu Fumin Zhang Bo Peng |
| author_facet | Tianyu Zhang Xinghua Qu Fumin Zhang Bo Peng |
| author_sort | Tianyu Zhang |
| collection | DOAJ |
| description | A long-distance measurement system is proposed in this paper, which is based on optical sampling using a femtosecond fiber laser. The measurement principle and the importance of dispersion compensation are theoretically analyzed in the time domain. By sweeping the repetition rate periodically, stable cross-correlation patterns are acquired, and the unknown distance can be calculated from the interference information. A long optical delay line is placed in the signal path, which can eliminate the “dead zone” effect and improve the performance of long-range measurement. The experimental results show that the present system can realize an accuracy of 4 μm over a 60-m distance, corresponding to a relative precision of 6.7 × 10<sup>−8</sup>. The all-fiber optical path system provides a balance among long range, high resolution, and rapid measurement, with the potential for the development of instrumentation for precision engineering applications. |
| format | Article |
| id | doaj-art-5b2272c8acd74a56bdca7859e99ebf6d |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-5b2272c8acd74a56bdca7859e99ebf6d2025-08-20T03:33:10ZengIEEEIEEE Photonics Journal1943-06552018-01-0110511010.1109/JPHOT.2018.28698398466961Long Distance Measurement System by Optical Sampling Using a Femtosecond LaserTianyu Zhang0https://orcid.org/0000-0001-6172-5628Xinghua Qu1Fumin Zhang2https://orcid.org/0000-0002-4516-5912Bo Peng3State Key Laboratory of Precision Measurement Technology and Instruments, Tianjin University, Tianjin, ChinaState Key Laboratory of Precision Measurement Technology and Instruments, Tianjin University, Tianjin, ChinaState Key Laboratory of Precision Measurement Technology and Instruments, Tianjin University, Tianjin, ChinaState Key Laboratory of Precision Measurement Technology and Instruments, Tianjin University, Tianjin, ChinaA long-distance measurement system is proposed in this paper, which is based on optical sampling using a femtosecond fiber laser. The measurement principle and the importance of dispersion compensation are theoretically analyzed in the time domain. By sweeping the repetition rate periodically, stable cross-correlation patterns are acquired, and the unknown distance can be calculated from the interference information. A long optical delay line is placed in the signal path, which can eliminate the “dead zone” effect and improve the performance of long-range measurement. The experimental results show that the present system can realize an accuracy of 4 μm over a 60-m distance, corresponding to a relative precision of 6.7 × 10<sup>−8</sup>. The all-fiber optical path system provides a balance among long range, high resolution, and rapid measurement, with the potential for the development of instrumentation for precision engineering applications.https://ieeexplore.ieee.org/document/8466961/Instrumentationfrequency combsultrafast measurementsmode-locked lasers |
| spellingShingle | Tianyu Zhang Xinghua Qu Fumin Zhang Bo Peng Long Distance Measurement System by Optical Sampling Using a Femtosecond Laser IEEE Photonics Journal Instrumentation frequency combs ultrafast measurements mode-locked lasers |
| title | Long Distance Measurement System by Optical Sampling Using a Femtosecond Laser |
| title_full | Long Distance Measurement System by Optical Sampling Using a Femtosecond Laser |
| title_fullStr | Long Distance Measurement System by Optical Sampling Using a Femtosecond Laser |
| title_full_unstemmed | Long Distance Measurement System by Optical Sampling Using a Femtosecond Laser |
| title_short | Long Distance Measurement System by Optical Sampling Using a Femtosecond Laser |
| title_sort | long distance measurement system by optical sampling using a femtosecond laser |
| topic | Instrumentation frequency combs ultrafast measurements mode-locked lasers |
| url | https://ieeexplore.ieee.org/document/8466961/ |
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