Title:
Distribution pattern Brillouin sensor
Document Type and Number:
Japanese Patent JP6165821
Kind Code:
B2
Abstract:
A distributed Brillouin sensor system comprising a pump laser, a Brillouin sensor fiber, and a detector system is described. The pump laser is arranged so as to send a pump signal into a first end of the Brillouin sensor fiber, and the detector system is arranged to detect Brillouin backscattering from the Brillouin sensor fiber. The Brillouin sensor fiber is characterized by having a negative dispersion, and further by an effective area of the sensor fiber being less than or equal to 50 µm 2 .
Inventors:
Lars Gruner-Nielsen
Paul Christensen
Tommy Geisler
Paul Christensen
Tommy Geisler
Application Number:
JP2015215667A
Publication Date:
July 19, 2017
Filing Date:
November 02, 2015
Export Citation:
Assignee:
OFS Fitel, LLC
International Classes:
G01D5/353; G01D5/26; G02B6/02; G02B6/036; G02F1/35; H01S3/00; H01S3/30
Foreign References:
| US20120127459 |
Other References:
Yongkang Dong et al,Extending the Sensing Range of Brillouin Optical Time-Domain Analysis Combining Frequency-Division Multiplexing and In-Line EDFAs,Journal of Lightwave Technology,米国,IEEE,2012年 4月15日,Vol.30 No.5,8,p.1161-1167
Xiaoyi Bao et al,Recent Progress in Brillouin Scatterin Based Fiber Sensors,sensors,2011年12月 7日,vol.11 no.12,p.4152-4187
Xiaoyi Bao et al,Recent Progress in Brillouin Scatterin Based Fiber Sensors,sensors,2011年12月 7日,vol.11 no.12,p.4152-4187
Attorney, Agent or Firm:
Okabe
Koji Yoshizawa
Haruhiko Mimura
Tomoki Kubota
Yoichi Okabe
Koji Yoshizawa
Haruhiko Mimura
Tomoki Kubota
Yoichi Okabe
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