Automatic Interference Term Retrieval From Spectral Domain Low-Coherence Interferometry Using the EEMD-EMD-Based Method
Low-coherence interferometry (LCI) has proved to be a useful tool in optical measurement and detection. However, the noise that is present in practical applications makes interference term retrieval (ITR) difficult. In this paper, we propose a novel technique based on ensemble empirical mode decompo...
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| Format: | Article |
| Language: | English |
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IEEE
2016-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/7456182/ |
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| author | Hongxia Zhang Feng Wang Dagong Jia Tiegen Liu Yimo Zhang |
| author_facet | Hongxia Zhang Feng Wang Dagong Jia Tiegen Liu Yimo Zhang |
| author_sort | Hongxia Zhang |
| collection | DOAJ |
| description | Low-coherence interferometry (LCI) has proved to be a useful tool in optical measurement and detection. However, the noise that is present in practical applications makes interference term retrieval (ITR) difficult. In this paper, we propose a novel technique based on ensemble empirical mode decomposition and empirical mode decomposition (EEMD-EMD) to achieve automatic ITR from the spectral domain LCI. In EEMD, the correlation coefficient of each intrinsic mode function (IMF) is calculated, and a characteristic parameter (CP) is introduced to recognize and remove the IMFs of noisy components. The remaining IMFs are used to reconstruct a new signal followed by EMD to extract the interference term. An experiment based on distributed polarization coupling detection in polarization-maintaining fibers (PMFs) was conducted; the PMFs having different lengths and coupling intensities were investigated. It was shown that by setting an appropriate CP, the interference term could be automatically extracted. The relative errors of the extracted coupling intensity were less than 2%. This suggests that our method may have potential applications in interferometric measurement. |
| format | Article |
| id | doaj-art-42224e3fc0ff42abbb21bf844e94b7b5 |
| institution | DOAJ |
| issn | 1943-0655 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-42224e3fc0ff42abbb21bf844e94b7b52025-08-20T02:42:00ZengIEEEIEEE Photonics Journal1943-06552016-01-01831910.1109/JPHOT.2016.25556257456182Automatic Interference Term Retrieval From Spectral Domain Low-Coherence Interferometry Using the EEMD-EMD-Based MethodHongxia Zhang0Feng Wang1Dagong Jia2Tiegen Liu3Yimo Zhang4College of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin, ChinaCollege of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin, ChinaCollege of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin, ChinaCollege of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin, ChinaCollege of Precision Instrument and Optoelectronics Engineering, Tianjin University, Tianjin, ChinaLow-coherence interferometry (LCI) has proved to be a useful tool in optical measurement and detection. However, the noise that is present in practical applications makes interference term retrieval (ITR) difficult. In this paper, we propose a novel technique based on ensemble empirical mode decomposition and empirical mode decomposition (EEMD-EMD) to achieve automatic ITR from the spectral domain LCI. In EEMD, the correlation coefficient of each intrinsic mode function (IMF) is calculated, and a characteristic parameter (CP) is introduced to recognize and remove the IMFs of noisy components. The remaining IMFs are used to reconstruct a new signal followed by EMD to extract the interference term. An experiment based on distributed polarization coupling detection in polarization-maintaining fibers (PMFs) was conducted; the PMFs having different lengths and coupling intensities were investigated. It was shown that by setting an appropriate CP, the interference term could be automatically extracted. The relative errors of the extracted coupling intensity were less than 2%. This suggests that our method may have potential applications in interferometric measurement.https://ieeexplore.ieee.org/document/7456182/low-coherence interferometryensemble empirical mode decompositionempirical mode decompositioninterference term retrieval |
| spellingShingle | Hongxia Zhang Feng Wang Dagong Jia Tiegen Liu Yimo Zhang Automatic Interference Term Retrieval From Spectral Domain Low-Coherence Interferometry Using the EEMD-EMD-Based Method IEEE Photonics Journal low-coherence interferometry ensemble empirical mode decomposition empirical mode decomposition interference term retrieval |
| title | Automatic Interference Term Retrieval From Spectral Domain Low-Coherence Interferometry Using the EEMD-EMD-Based Method |
| title_full | Automatic Interference Term Retrieval From Spectral Domain Low-Coherence Interferometry Using the EEMD-EMD-Based Method |
| title_fullStr | Automatic Interference Term Retrieval From Spectral Domain Low-Coherence Interferometry Using the EEMD-EMD-Based Method |
| title_full_unstemmed | Automatic Interference Term Retrieval From Spectral Domain Low-Coherence Interferometry Using the EEMD-EMD-Based Method |
| title_short | Automatic Interference Term Retrieval From Spectral Domain Low-Coherence Interferometry Using the EEMD-EMD-Based Method |
| title_sort | automatic interference term retrieval from spectral domain low coherence interferometry using the eemd emd based method |
| topic | low-coherence interferometry ensemble empirical mode decomposition empirical mode decomposition interference term retrieval |
| url | https://ieeexplore.ieee.org/document/7456182/ |
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