Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/107186
DC Field | Value | Language |
---|---|---|
dc.contributor | Photonics Research Centre | en_US |
dc.contributor | Department of Electrical and Electronic Engineering | en_US |
dc.creator | Zhao, Z | en_US |
dc.creator | Dang, Y | en_US |
dc.creator | Tang, M | en_US |
dc.creator | Wang, L | en_US |
dc.creator | Gan, L | en_US |
dc.creator | Fu, S | en_US |
dc.creator | Yang, C | en_US |
dc.creator | Tong, W | en_US |
dc.creator | Lu, C | en_US |
dc.date.accessioned | 2024-06-13T01:04:27Z | - |
dc.date.available | 2024-06-13T01:04:27Z | - |
dc.identifier.issn | 0733-8724 | en_US |
dc.identifier.uri | http://hdl.handle.net/10397/107186 | - |
dc.language.iso | en | en_US |
dc.publisher | Institute of Electrical and Electronics Engineers | en_US |
dc.rights | © 2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. | en_US |
dc.rights | The following publication Z. Zhao et al., "Enabling Simultaneous DAS and DTS Through Space-Division Multiplexing Based on Multicore Fiber," in Journal of Lightwave Technology, vol. 36, no. 24, pp. 5707-5713, 15 Dec. 2018 is available at https://doi.org/10.1109/JLT.2018.2878559. | en_US |
dc.subject | Distributed acoustic sensing | en_US |
dc.subject | Distributed temperature sensing | en_US |
dc.subject | Multicore fiber | en_US |
dc.subject | Space-division multiplexing | en_US |
dc.title | Enabling simultaneous DAS and DTS through space-division multiplexing based on multicore fiber | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.spage | 5707 | en_US |
dc.identifier.epage | 5713 | en_US |
dc.identifier.volume | 36 | en_US |
dc.identifier.issue | 24 | en_US |
dc.identifier.doi | 10.1109/JLT.2018.2878559 | en_US |
dcterms.abstract | We have proposed and demonstrated a hybrid optical-fiber sensor that enables simultaneous distributed acoustic sensing (DAS) and distributed temperature sensing (DTS). The hybrid fiber sensor is realized through space-division multiplexed (SDM) reflectometers in a multicore fiber (MCF), where Raman optical time-domain reflectometry (ROTDR) for DTS is implemented simultaneously with phase-sensitive optical time-domain reflectometry (Φ-OTDR) for DAS through space-division multiplexing. The SDM reflectometers share an identical pulse source, but use separate interrogation fiber cores, allowing simultaneous measurement of ROTDR and Φ-OTDR. The proposed hybrid sensor based on MCF does not suffer from the incompatible pump power levels issue existing in its counterpart based on single mode fiber thanks to the SDM implementation. Thus it effectively eliminates the restriction imposed by fiber nonlinear effects (e.g., modulation instability). Wavelet transform denoising method is employed to reduce the noise of temporal ROTDR traces; as a result, the worst temperature uncertainty is reduced from 4.1 to 0.5 °C over 5.76 km sensing range. The proposed SDM hybrid fiber sensor can realize simultaneous distributed intrusion detection and temperature monitoring. It offers great potential in long-term real-time pipeline monitoring for oil and gas industry. | en_US |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Journal of lightwave technology, 15 Dec. 2018, v. 36, no. 24, p. 5707-5713 | en_US |
dcterms.isPartOf | Journal of lightwave technology | en_US |
dcterms.issued | 2018-12-15 | - |
dc.identifier.scopus | 2-s2.0-85055701590 | - |
dc.identifier.eissn | 1558-2213 | en_US |
dc.description.validate | 202403 bckw | en_US |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | EIE-0432 | - |
dc.description.fundingSource | RGC | en_US |
dc.description.fundingSource | Others | en_US |
dc.description.fundingText | Hong Kong Polytechnic University; National Natural Science Foundation of China | en_US |
dc.description.pubStatus | Published | en_US |
dc.identifier.OPUS | 20015389 | - |
dc.description.oaCategory | Green (AAM) | en_US |
Appears in Collections: | Journal/Magazine Article |
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File | Description | Size | Format | |
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Zhao_Enabling_Simultaneous_Das.pdf | Pre-Published version | 1.11 MB | Adobe PDF | View/Open |
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