| Presentation | 2005-08-25 PPP-BOTDA method to achieve cm-order spatial resolution in Brillouin distributed measuring technique Che Hien LI, Tsutomu TSUDA, Kinzo KISHIDA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Principle of Pulse Pre-Pump(PPP) method was published in our previous work. The possibility of access both high spatial resolution and good precision was illustrated. These double specs have been the target of Brillouin distributed measuring technique (BOTDA) for more than 10 years. This paper reports the experimental results of PPP-BOTDA (Pulse-PrePump Brillouin Optical Time Domain Analysis) based on the published theory. In this report, we describe the system of PPP-BOTD. The results of theoretical prediction and experimental data are compared. PPP-BOTDA method shows a unique advantage over other existing plans. The topics of spatial resolution, Brillouin frequency shift precision, and measurement range are discussed. Based on these new understanding, a commercial portable type system of PPP-BOTDA is developed. The spatial resolution of 10cm and the strain measuring precision equivalent to ±25με are successfully achieved, as well as kilometers order of sensing distance. This was not reported before to our knowledge. We believe this system has a high utility in the future. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | PPP-BOTDA / Pulse-PrePump Method / Brillouin / Highly spatial resolution |
| Paper # | OFT2005-16 |
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| Conference Information | |
| Committee | OFT |
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| Conference Date | 2005/8/18(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 | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | PPP-BOTDA method to achieve cm-order spatial resolution in Brillouin distributed measuring technique |
| Sub Title (in English) | |
| Keyword(1) | PPP-BOTDA |
| Keyword(2) | Pulse-PrePump Method |
| Keyword(3) | Brillouin |
| Keyword(4) | Highly spatial resolution |
| 1st Author's Name | Che Hien LI |
| 1st Author's Affiliation | Neubrex Co., Ltd() |
| 2nd Author's Name | Tsutomu TSUDA |
| 2nd Author's Affiliation | Neubrex Co., Ltd |
| 3rd Author's Name | Kinzo KISHIDA |
| 3rd Author's Affiliation | Neubrex Co., Ltd |
| Date | 2005-08-25 |
| Paper # | OFT2005-16 |
| Volume (vol) | vol.105 |
| Number (no) | 242 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |