Waveform reconstruction for an ultrasonic fiber Bragg grating sensor demodulated by an erbium fiber laser
Fiber Bragg grating (FBG) demodulated by an erbium fiber laser (EFL) has been used for ultrasonic detection recently. However, due to the inherent relaxation oscillation (RO) of the EFL, the detected ultrasonic signals have large deformations, especially in the low-frequency range. We proposed a nov...
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| Veröffentlicht in: | Applied optics (2004) 2015-02, Vol.54 (4), p.694-698 |
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| container_title | Applied optics (2004) |
| container_volume | 54 |
| creator | Wu, Qi Okabe, Yoji |
| description | Fiber Bragg grating (FBG) demodulated by an erbium fiber laser (EFL) has been used for ultrasonic detection recently. However, due to the inherent relaxation oscillation (RO) of the EFL, the detected ultrasonic signals have large deformations, especially in the low-frequency range. We proposed a novel data processing method to reconstruct an actual ultrasonic waveform. The noise spectrum was smoothed first; the actual ultrasonic spectrum was then obtained by deconvolution in order to mitigate the influence of the RO of the EFL. We proved by experiment that this waveform reconstruction method has high precision, and demonstrated that the FBG sensor demodulated by the EFL will have large practical applications in nondestructive testing. |
| doi_str_mv | 10.1364/ao.54.000694 |
| format | Article |
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However, due to the inherent relaxation oscillation (RO) of the EFL, the detected ultrasonic signals have large deformations, especially in the low-frequency range. We proposed a novel data processing method to reconstruct an actual ultrasonic waveform. The noise spectrum was smoothed first; the actual ultrasonic spectrum was then obtained by deconvolution in order to mitigate the influence of the RO of the EFL. We proved by experiment that this waveform reconstruction method has high precision, and demonstrated that the FBG sensor demodulated by the EFL will have large practical applications in nondestructive testing.</description><subject>Bragg gratings</subject><subject>Erbium</subject><subject>Fiber lasers</subject><subject>Fibers</subject><subject>Reconstruction</subject><subject>Sensors</subject><subject>Ultrasonic testing</subject><subject>Waveforms</subject><issn>1559-128X</issn><issn>2155-3165</issn><issn>1539-4522</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNqNkb1PwzAQxS0EoqWwMSOPDKT4O_YIFV9SpS4g2CLbuVRBSVzsBKn_PalamNENdzr93hveQ-iSkjnlStzaMJdiTghRRhyhKaNSZpwqeYym42kyyvTHBJ2l9EkIl8Lkp2jCpFF5nqspqt_tN1QhtjiCD13q4-D7OnR4_GHb4aHpo02hqz2uagcR30e7XuN1tH3drXGCLo1gCW0oh8b2UGK33ekgunpoD5rGJojn6KSyTYKLw56ht8eH18Vztlw9vSzulpkXivQZ1dyocThRzDlttOUATjPmDZWaC1pRr3LJjfNUGMNKWakK8tI4lnsChM_Q9d53E8PXAKkv2jp5aBrbQRhSQTXRRHLK_oEqTYwi2ogRvdmjPoaUIlTFJtatjduCkmLXQ3G3KqQo9j2M-NXBeXAtlH_wb_D8B1p6gx0</recordid><startdate>20150201</startdate><enddate>20150201</enddate><creator>Wu, Qi</creator><creator>Okabe, Yoji</creator><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20150201</creationdate><title>Waveform reconstruction for an ultrasonic fiber Bragg grating sensor demodulated by an erbium fiber laser</title><author>Wu, Qi ; Okabe, Yoji</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c460t-183969693062bb898a3eeb822c9158341f1c67539bc14992d5f6fe7d9b27c0e03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Bragg gratings</topic><topic>Erbium</topic><topic>Fiber lasers</topic><topic>Fibers</topic><topic>Reconstruction</topic><topic>Sensors</topic><topic>Ultrasonic testing</topic><topic>Waveforms</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wu, Qi</creatorcontrib><creatorcontrib>Okabe, Yoji</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Applied optics (2004)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wu, Qi</au><au>Okabe, Yoji</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Waveform reconstruction for an ultrasonic fiber Bragg grating sensor demodulated by an erbium fiber laser</atitle><jtitle>Applied optics (2004)</jtitle><addtitle>Appl Opt</addtitle><date>2015-02-01</date><risdate>2015</risdate><volume>54</volume><issue>4</issue><spage>694</spage><epage>698</epage><pages>694-698</pages><issn>1559-128X</issn><eissn>2155-3165</eissn><eissn>1539-4522</eissn><abstract>Fiber Bragg grating (FBG) demodulated by an erbium fiber laser (EFL) has been used for ultrasonic detection recently. However, due to the inherent relaxation oscillation (RO) of the EFL, the detected ultrasonic signals have large deformations, especially in the low-frequency range. We proposed a novel data processing method to reconstruct an actual ultrasonic waveform. The noise spectrum was smoothed first; the actual ultrasonic spectrum was then obtained by deconvolution in order to mitigate the influence of the RO of the EFL. We proved by experiment that this waveform reconstruction method has high precision, and demonstrated that the FBG sensor demodulated by the EFL will have large practical applications in nondestructive testing.</abstract><cop>United States</cop><pmid>25967776</pmid><doi>10.1364/ao.54.000694</doi><tpages>5</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 1559-128X |
| ispartof | Applied optics (2004), 2015-02, Vol.54 (4), p.694-698 |
| issn | 1559-128X 2155-3165 1539-4522 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_1808053120 |
| source | Alma/SFX Local Collection; Optica Publishing Group Journals |
| subjects | Bragg gratings Erbium Fiber lasers Fibers Reconstruction Sensors Ultrasonic testing Waveforms |
| title | Waveform reconstruction for an ultrasonic fiber Bragg grating sensor demodulated by an erbium fiber laser |
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