Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/95584
DC Field | Value | Language |
---|---|---|
dc.contributor | Photonics Research Centre | en_US |
dc.contributor | Department of Electronic and Information Engineering | en_US |
dc.contributor | Department of Electrical Engineering | en_US |
dc.creator | Zhao, Z | en_US |
dc.creator | Tang, M | en_US |
dc.creator | Wang, L | en_US |
dc.creator | Guo, N | en_US |
dc.creator | Tam, HY | en_US |
dc.creator | Lu, C | en_US |
dc.date.accessioned | 2022-09-22T06:13:58Z | - |
dc.date.available | 2022-09-22T06:13:58Z | - |
dc.identifier.issn | 0733-8724 | en_US |
dc.identifier.uri | http://hdl.handle.net/10397/95584 | - |
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, M. Tang, L. Wang, N. Guo, H. -Y. Tam and C. Lu, "Distributed Vibration Sensor Based on Space-Division Multiplexed Reflectometer and Interferometer in Multicore Fiber," in Journal of Lightwave Technology, vol. 36, no. 24, pp. 5764-5772, 15 Dec.15, 2018 is available at https://doi.org/10.1109/JLT.2018.2878450. | en_US |
dc.subject | Distributed optical fiber sensor | en_US |
dc.subject | Multicore fiber | en_US |
dc.subject | Space-division multiplexing | en_US |
dc.subject | Vibration sensing | en_US |
dc.title | Distributed vibration sensor based on space-division multiplexed reflectometer and interferometer in multicore fiber | en_US |
dc.type | Journal/Magazine Article | en_US |
dc.identifier.spage | 5764 | en_US |
dc.identifier.epage | 5772 | en_US |
dc.identifier.volume | 36 | en_US |
dc.identifier.issue | 24 | en_US |
dc.identifier.doi | 10.1109/JLT.2018.2878450 | en_US |
dcterms.abstract | The maximum detectable vibration frequency by phase-sensitive optical time-domain reflectometer (Φ-OTDR) is limited by the repetition rate of the pump pulse. Additionally, the intensity-demodulation based Φ-OTDR sensor suffers from the generally nonlinear dependency of the backscattered optical intensity on vibration. This makes quantitative measurement of vibration frequency difficult. In order to mitigate these limitations, we propose and demonstrate a multicore fiber (MCF) based space-division multiplexed (SDM) Φ-OTDR and Mach-Zehnder interferometer (MZI) hybrid sensor, enabling truly uninterrupted distributed vibration sensing with broad vibration frequency response range and high spatial resolution. By taking advantage of highly integrated multiple spatial cores offered by an MCF, Φ-OTDR implemented in one of the cores is used to locate the vibration. Meanwhile, an MZI is constructed using another two parallel spatial cores with sufficient continuous-wave optical power from a coherent narrow linewidth laser, which is used to retrieve the vibration frequency by processing the acquired interference signal. Compared with the single mode fiber based hybrid systems, the proposed SDM configuration allows implementation of Φ-OTDR and MZI independently without any crosstalk between them. Consequently it offers many unique advantages, such as simple data processing procedure, good signal-to-noise ratio of the demodulated vibration frequency spectrum, no frequency dead zone, and single-end access. This cost-effective SDM hybrid sensor provides significant potential for distributed and accurate monitoring of vibrations. | en_US |
dcterms.accessRights | open access | en_US |
dcterms.bibliographicCitation | Journal of lightwave technology, 15 Dec. 2018, v. 36, no. 24, 8513845, p. 5764-5772 | en_US |
dcterms.isPartOf | Journal of lightwave technology | en_US |
dcterms.issued | 2018-12-15 | - |
dc.identifier.scopus | 2-s2.0-85055679233 | - |
dc.identifier.eissn | 1558-2213 | en_US |
dc.identifier.artn | 8513845 | en_US |
dc.description.validate | 202209_bcww | en_US |
dc.description.oa | Accepted Manuscript | en_US |
dc.identifier.FolderNumber | EIE-0431 | - |
dc.description.fundingSource | RGC | en_US |
dc.description.fundingSource | Others | en_US |
dc.description.fundingText | National Natural Science Foundation of China | en_US |
dc.description.pubStatus | Published | en_US |
dc.identifier.OPUS | 20015506 | - |
dc.description.oaCategory | Green (AAM) | en_US |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Zhao_Distributed_Vibration_Sensor.pdf | Pre-Published version | 1.3 MB | Adobe PDF | View/Open |
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