| Presentation | 2006-02-17 Brillouin optical correlation domain analysis system with kilometer measurement range based on intensity modulation scheme Kwang-Yong SONG, Zuyuan HE, Kazuo HOTATE, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We report a novel method to enhance the performance of Brillouin optical correlation domain analysis (BOCDA) system based on intensity modulation of light source. In addition to the former sinusoidal frequency modulation of the BOCDA, we newly applied a synchronous intensity modulation, which changed the output power spectrum and the shape of the background noise in local Brillouin gain spectrum, together. We could observe the noise suppression of more than 40% with this implementation, and effectively enlarge the measurement range of the system. For the first time, a distributed measurement over 1-km range is successfully demonstrated using the BOCDA system with a decent spatial resolution of 30cm. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Fiber optics / Fiber optic sensors / Stimulated Brillouin scattering / Distributed measurement / Modulation |
| Paper # | OPE2005-148 |
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| Conference Information | |
| Committee | OPE |
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| Conference Date | 2006/2/10(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
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| Paper Information | |
| Registration To | Optoelectronics (OPE) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Brillouin optical correlation domain analysis system with kilometer measurement range based on intensity modulation scheme |
| Sub Title (in English) | |
| Keyword(1) | Fiber optics |
| Keyword(2) | Fiber optic sensors |
| Keyword(3) | Stimulated Brillouin scattering |
| Keyword(4) | Distributed measurement |
| Keyword(5) | Modulation |
| 1st Author's Name | Kwang-Yong SONG |
| 1st Author's Affiliation | Department of Electronic Engineering, Graduate school of Engineering() |
| 2nd Author's Name | Zuyuan HE |
| 2nd Author's Affiliation | Department of Electronic Engineering, Graduate school of Engineering |
| 3rd Author's Name | Kazuo HOTATE |
| 3rd Author's Affiliation | Department of Electronic Engineering, Graduate school of Engineering |
| Date | 2006-02-17 |
| Paper # | OPE2005-148 |
| Volume (vol) | vol.105 |
| Number (no) | 606 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |