| Presentation | 2021-11-19 Super-simplified optical correlation-domain reflectometry Takaki Kiyozumi, Tomoya Miyamae, Kohei Noda, Heeyoung Lee, Kentaro Nakamura, Yosuke Mizuno, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Optical fiber reflectometry has been widely studied as a method for diagnosing the soundness of fiber networks. Of numerous reflectometry configurations reported so far, optical correlated-domain reflectometry (OCDR) has attracted considerable attention in a wide range of fields including LiDAR applications because of its high spatial resolution and the capability of measuring arbitrary points at high speed (referred to as random accessibility). To date, the experimental setup of OCDR has been simplified to reduce its size and cost by removing an acousto-optic modulator (AOM) used for heterodyne detection and by removing the reference path. If multiple erbium-doped fiber amplifiers (EDFAs) inserted in the optical signal path can be additionally removed, the system will be super-simplified by the inherent use of only an optical source and a photo detector; however, such a trial has not been reported yet. In this work, we implement a super-simplified OCDR system with no use of the EDFAs, AOM, and reference path used in the conventional systems. We experimentally show that this system can still perform distributed reflectivity sensing with a moderate signal-to-noise ratio, which will boost the portability and cost efficiency of the OCDR technology. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | optical fiber sensing / optical correlation-domain reflectometry / distributed reflectivity sensing / Fresnel reflection / super-simplified system |
| Paper # | OFT2021-53 |
| Date of Issue | 2021-11-11 (OFT) |
| Conference Information | |
| Committee | OFT / OCS / IEE-CMN / ITE-BCT |
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| Conference Date | 2021/11/18(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) / Shun Morimura(CRIEPI) / 斎藤 恭一(NHK) |
| Vice Chair | / / Kouji Hirata(Kansai Univ) |
| Secretary | (NTT) / (Fujikura) / Kouji Hirata(NTT) / (Fujikura) |
| Assistant | Yukihiro Goto(NTT) / Minoru Takahashi(Fujikura) / / Yuuichi Shinohara(TEPCO Power Grid) / Akihiro Tanaka(CRIEPI) / 濱住 啓之(東京高専) / 前田 直樹(住友電工) / 松本 卓三(古河電工) / 斉藤 一(テレビ東京) |
| Paper Information | |
| Registration To | Technical Committee on Optical Fiber Technology / Technical Committee on Optical Communication Systems / Technical Meeting on Communications / Technical Group on Broadcasting Technology |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Super-simplified optical correlation-domain reflectometry |
| Sub Title (in English) | |
| Keyword(1) | optical fiber sensing |
| Keyword(2) | optical correlation-domain reflectometry |
| Keyword(3) | distributed reflectivity sensing |
| Keyword(4) | Fresnel reflection |
| Keyword(5) | super-simplified system |
| 1st Author's Name | Takaki Kiyozumi |
| 1st Author's Affiliation | Yokohama National University(YNU) |
| 2nd Author's Name | Tomoya Miyamae |
| 2nd Author's Affiliation | Yokohama National University(YNU) |
| 3rd Author's Name | Kohei Noda |
| 3rd Author's Affiliation | Tokyo Institute of Technology/Yokohama National University(Tokyo Tech/YNU) |
| 4th Author's Name | Heeyoung Lee |
| 4th Author's Affiliation | Shibaura Institute of Technology(SIT) |
| 5th Author's Name | Kentaro Nakamura |
| 5th Author's Affiliation | Tokyo Institute of Technology(Tokyo Tech) |
| 6th Author's Name | Yosuke Mizuno |
| 6th Author's Affiliation | Yokohama National University(YNU) |
| Date | 2021-11-19 |
| Paper # | OFT2021-53 |
| Volume (vol) | vol.121 |
| Number (no) | OFT-252 |
| Page | pp.pp.13-16(OFT), |
| #Pages | 4 |
| Date of Issue | 2021-11-11 (OFT) |