Presentation 2020-10-09
Measurement of Spatial Distribution of Fiber Birefringence by Coherent Heterodyne Detection of Rayleigth Backscattered Light
Nanako Takei, Shiro Ryu,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) Since the coherent technology uses the phase information of light, it can be applied to various optical measurement technology. The authors have used this technology to observe the backscattered light in an optical fiber and perform phase characteristics analysis. We have shown previously that the coherent heterodyne detection can measure the birefringence of the optical fiber by measuring the phase of the coherent heterodyne-detected backscattered light. In this paper, we describe successful results of further development of this technology. We have performed the measurement of the spatial distribution of optical fiber birefringence with respect to the fiber distance. This measurement method has a feature that we can measure in an extremely short time as compared with the conventional method.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Backscattered light / Beat length / Local birefringence / Coherent optical communication
Paper # OFT2020-25
Date of Issue 2020-10-01 (OFT)

Conference Information
Committee OFT
Conference Date 2020/10/8(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) Measurement of Spatial Distribution of Fiber Birefringence by Coherent Heterodyne Detection of Rayleigth Backscattered Light
Sub Title (in English)
Keyword(1) Backscattered light
Keyword(2) Beat length
Keyword(3) Local birefringence
Keyword(4) Coherent optical communication
1st Author's Name Nanako Takei
1st Author's Affiliation Meiji University(Meiji Univ.)
2nd Author's Name Shiro Ryu
2nd Author's Affiliation Meiji University(Meiji Univ.)
Date 2020-10-09
Paper # OFT2020-25
Volume (vol) vol.120
Number (no) OFT-184
Page pp.pp.62-67(OFT),
#Pages 6
Date of Issue 2020-10-01 (OFT)