Presentation 2021-08-26
A method for continuously measuring backscattered light at an arbitrary point on an optical fiber
Shiro Ryu, Takafumi Tsuboya,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) We have proposed a continuous measurement method for Rayleigh backscattered light in the time domain at any point on the optical fiber and conducted experimental confirmation. Still, the measured phase contains the frequency noise component of the laser. Therefore, it wasn't easy to measure with sufficient quality. This paper reports the measurement results by improving the digital signal processing for the phase measurement of backscattered light and removing the above noise component. Furthermore, we mention the experimental results of applying this measurement method to Brillouin scattered light.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Optical Fiber / Backscattered Light / Rayleigh Scattering / OTDR / Brillouin Scattering
Paper # OFT2021-14
Date of Issue 2021-08-19 (OFT)

Conference Information
Committee OFT / OCS / LSJ
Conference Date 2021/8/26(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.) / Takeshi Hoshida(Fujitsu)
Vice Chair
Secretary (NTT) / (Fujikura) / (NTT)
Assistant Yukihiro Goto(NTT) / Minoru Takahashi(Fujikura)

Paper Information
Registration To Technical Committee on Optical Fiber Technology / Technical Committee on Optical Communication Systems / The Laser Society of Japan
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A method for continuously measuring backscattered light at an arbitrary point on an optical fiber
Sub Title (in English)
Keyword(1) Optical Fiber
Keyword(2) Backscattered Light
Keyword(3) Rayleigh Scattering
Keyword(4) OTDR
Keyword(5) Brillouin Scattering
1st Author's Name Shiro Ryu
1st Author's Affiliation Meiji University(Meiji Univ.)
2nd Author's Name Takafumi Tsuboya
2nd Author's Affiliation SECOM Co., Ltd.(SECOM)
Date 2021-08-26
Paper # OFT2021-14
Volume (vol) vol.121
Number (no) OFT-151
Page pp.pp.13-18(OFT),
#Pages 6
Date of Issue 2021-08-19 (OFT)