Presentation 2021-05-14
Distributed strain measurement using stimulated Brillouin scattering pumped by orthogonal two-wavelength pulses
Kenichiro Tsuji, Tomoyuki Uehara,
PDF Download Page PDF download Page Link
Abstract(in Japanese) (See Japanese page)
Abstract(in English) In the distributed strain measurement with a conventional BOTDA using stimulated Brillouin scattering, a polarization scrambler has been used to reduce polarization dependence of the Brillouin gain. In this report, we propose and investigate a simple BOTDA method using orthogonal two-wavelength pump pulses, which are passively produced by a birefringent optical fiber to reduce the polarization dependence of the Brillouin gain. The experimental results show that the fluctuation of the Brillouin gain along the sensing fiber is well suppressed by the orthogonal two-wavelength pulses. The successful distributed strain measurement using the proposed method is demonstrated.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Optical fiber sensing / Distributed strain measurement / Stimulated Brillouin scattering / BOTDA / Birefringent fiber
Paper # OFT2021-10
Date of Issue 2021-05-06 (OFT)

Conference Information
Committee OFT
Conference Date 2021/5/13(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Online
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Yuji Matsuura(Tohoku Univ.)
Vice Chair
Secretary (NTT)
Assistant Hajime Arao(Sumitomo Electric) / Yukihiro Goto(NTT)

Paper Information
Registration To Technical Committee on Optical Fiber Technology
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Distributed strain measurement using stimulated Brillouin scattering pumped by orthogonal two-wavelength pulses
Sub Title (in English)
Keyword(1) Optical fiber sensing
Keyword(2) Distributed strain measurement
Keyword(3) Stimulated Brillouin scattering
Keyword(4) BOTDA
Keyword(5) Birefringent fiber
1st Author's Name Kenichiro Tsuji
1st Author's Affiliation National Defense Academy(NDA)
2nd Author's Name Tomoyuki Uehara
2nd Author's Affiliation National Defense Academy(NDA)
Date 2021-05-14
Paper # OFT2021-10
Volume (vol) vol.121
Number (no) OFT-18
Page pp.pp.40-43(OFT),
#Pages 4
Date of Issue 2021-05-06 (OFT)