| Presentation | 2011-08-26 An Ultra-High-Resolution Large-Dynamic-Range Fiber Optic Static Strain Sensor Using Pound-Drever-Hall Demodulation Technique Qingwen LIU, Zuyuan HE, Tomochika TOKUNAGA, Kazuo HOTATE, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper we report the realization of a fiber optic static strain sensor with ultra-high resolution and large dynamic range for the applications of geophysical research. The sensor consists of a pair of fiber Fabry-Perot interferometers (FFPI) for strain sensing and reference, respectively. A tunable fiber laser is used to interrogate the FFPIs, and Pound-Drever-Hall technique is employed for demodulation. With a cross-correlation algorithm to calculate the resonance difference between the two FFPIs, ultra-high wavelength resolution corresponding to static strain resolution of 4.5 nano-strains was demonstrated; the dynamic range can be extended up to hundreds of micro-strains. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Fiber optics sensor / Fabry-Perot / phase modulation |
| Paper # | OFT2011-28 |
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| Conference Information | |
| Committee | OFT |
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| Conference Date | 2011/8/18(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Vice Chair | |
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| Paper Information | |
| Registration To | Optical Fiber Technology (OFT) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | An Ultra-High-Resolution Large-Dynamic-Range Fiber Optic Static Strain Sensor Using Pound-Drever-Hall Demodulation Technique |
| Sub Title (in English) | |
| Keyword(1) | Fiber optics sensor |
| Keyword(2) | Fabry-Perot |
| Keyword(3) | phase modulation |
| 1st Author's Name | Qingwen LIU |
| 1st Author's Affiliation | Department of Electrical Engineering and Information Systems, The University of Tokyo() |
| 2nd Author's Name | Zuyuan HE |
| 2nd Author's Affiliation | Department of Electrical Engineering and Information Systems, The University of Tokyo |
| 3rd Author's Name | Tomochika TOKUNAGA |
| 3rd Author's Affiliation | Department of Environment Systems, The University of Tokyo |
| 4th Author's Name | Kazuo HOTATE |
| 4th Author's Affiliation | Department of Electrical Engineering and Information Systems, The University of Tokyo |
| Date | 2011-08-26 |
| Paper # | OFT2011-28 |
| Volume (vol) | vol.111 |
| Number (no) | 182 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |