| Presentation | 2010-01-21 Rayleigh scattering-induced noise and spatial resolution in Brillouin optical correlation-domain reflectometry Yosuke MIZUNO, Weiwen ZOU, Zuyuan HE, Kazuo HOTATE, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | According to the basic theory on Brillouin optical correlation-domain reflectometry (BOCDR), the modulation amplitude of the light source, which is in inverse proportion to the spatial resolution, must be lower than a half of the Brillouin frequency shift due to the behavior of the beating noise between the reference light and the Rayleigh-scattered light. However, the modulation amplitude can be enhanced further by using a fiber under test (PUT) much shorter than the measurement range. In this paper, the expression for the limitation of the modulation amplitude is theoretically derived as a function of PUT length, measurement range, and measuring position; and it is experimentally verified. It is also theoretically shown that the spatial resolution of BOCDR is given by the same expression as that of Brillouin optical correlation-domain analysis (BOCDA). |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Optical fiber sensor / distributed strain measurement / Brillouin optical correlation-domain reflectometry (BOCDR) / spontaneous Brillouin scattering / Rayleigh scattering / synthesis of optical coherence function (SOCF) / spatial resolution |
| Paper # | OFT2009-66 |
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| Conference Information | |
| Committee | OFT |
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| Conference Date | 2010/1/14(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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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) | Rayleigh scattering-induced noise and spatial resolution in Brillouin optical correlation-domain reflectometry |
| Sub Title (in English) | |
| Keyword(1) | Optical fiber sensor |
| Keyword(2) | distributed strain measurement |
| Keyword(3) | Brillouin optical correlation-domain reflectometry (BOCDR) |
| Keyword(4) | spontaneous Brillouin scattering |
| Keyword(5) | Rayleigh scattering |
| Keyword(6) | synthesis of optical coherence function (SOCF) |
| Keyword(7) | spatial resolution |
| 1st Author's Name | Yosuke MIZUNO |
| 1st Author's Affiliation | Department of Electrical Engineering and Information Systems, The University of Tokyo() |
| 2nd Author's Name | Weiwen ZOU |
| 2nd Author's Affiliation | Department of Electrical Engineering and Information Systems, The University of Tokyo |
| 3rd Author's Name | Zuyuan HE |
| 3rd Author's Affiliation | Department of Electrical Engineering and Information 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 | 2010-01-21 |
| Paper # | OFT2009-66 |
| Volume (vol) | vol.109 |
| Number (no) | 377 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |