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http://hdl.handle.net/10397/107216
Title: | BOTDA sensor utilizing digital optical frequency comb based phase spectrum measurement | Authors: | Jin, C Wang, L Chen, Y Guo, N Yu, C Li, Z Lu, C |
Issue Date: | 2017 | Source: | In Proceedings of 2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR), 31 July 2017 - 04 August 2017, Singapore | Abstract: | An Ultra-Fast Sweep-Free distributed BOTDA sensor is proposed and experimentally demonstrated employing coherent de-modulation of digital optical frequency comb (DOFC) probe signal. The phase shift of each frequency tone induced during the Stimulated Brillouin Scattering (SBS), corresponding to the Brillouin Phase Spectrum (BPS), is simultaneously measured in a single shot without frequency sweeping and averaging. We demonstrate an ultra-fast BOTDA sensor in10km long fiber with the measurement time of 10 ìs, which is depending on the time-of-flight of the fiber. The minimum detectable fiber length is 51.2m with a 1.95 MHz frequency resolution among 1 GHz sensing coverage. The BFS uncertainty of our ultra-fast BOTDA using BPS is calculated to be~1.5 MHz near the end of fiber under test (FUT), which is significantly improved by ~50% compared with that using BGS. | Keywords: | Fiber optics sensors Nonlinear optics Scattering, stimulated Brillouin |
Publisher: | Institute of Electrical and Electronics Engineers | ISBN: | 978-1-5090-6290-4 (Electronic) 978-1-5090-6291-1 (Print on Demand(PoD)) |
DOI: | 10.1109/CLEOPR.2017.8118962 | Description: | 2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR), 31 July 2017 - 04 August 2017, Singapore | Rights: | ©2017 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. The following publication C. Jin et al., "BOTDA sensor utilizing digital optical frequency comb based phase spectrum measurement," 2017 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR), Singapore, 2017 is available at https://doi.org/10.1109/CLEOPR.2017.8118962. |
Appears in Collections: | Conference Paper |
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Guo_Botda_Sensor_Utilizing.pdf | Pre-Published version | 325.19 kB | Adobe PDF | View/Open |
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