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Paper Abstract and Keywords
Presentation 2005-08-25 13:05
PPP-BOTDA method to achieve cm-order spatial resolution in Brillouin distributed measuring technique
Li Che-Hsien, Tsutomu Tsuda, Kinzo Kishida (NEUBREX)
Abstract (in Japanese) (See Japanese page) 
(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) 
(in English) PPP-BOTDA / Pulse-PrePump Method / Brillouin / Highly spatial resolution / BOTDA / BOTDR / /  
Reference Info. IEICE Tech. Rep., vol. 105, no. 242, OFT2005-16, pp. 1-6, Aug. 2005.
Paper # OFT2005-16 
Date of Issue 2005-08-18 (OFT) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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Conference Information
Committee OFT OCS  
Conference Date 2005-08-25 - 2005-08-26 
Place (in Japanese) (See Japanese page) 
Place (in English) Akita Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To OFT 
Conference Code 2005-08-OFT-OCS 
Language Japanese 
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  
Keyword(5) BOTDA  
Keyword(6) BOTDR  
1st Author's Name Li Che-Hsien  
1st Author's Affiliation NEUBREX CO., LTD。 (NEUBREX)
2nd Author's Name Tsutomu Tsuda  
2nd Author's Affiliation NEUBREX CO., LTD. (NEUBREX)
3rd Author's Name Kinzo Kishida  
3rd Author's Affiliation NEUBREX CO., LTD. (NEUBREX)
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Date Time 2005-08-25 13:05:00 
Presentation Time 25 
Registration for OFT 
Paper # IEICE-OFT2005-16 
Volume (vol) IEICE-105 
Number (no) no.242 
Page pp.1-6 
#Pages IEICE-6 
Date of Issue IEICE-OFT-2005-08-18 

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