| Presentation | 2021-10-14 [Poster Presentation] World-fastest operation of OCDR without spatial resolution deterioration Tomoya Miyamae, Zhu Guangtao, Takaki Kiyozumi, 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) | Recent rapid growth of optical fiber communication has led to a significant demand for health monitoring technology of optical fiber communication networks. One of the promising techniques that can be used to detect defects and/or breakage points along a fiber is optical correlation-domain reflectometry (OCDR), which can measure the reflected power distributions along an optical fiber. The OCDR system has been simplified from several aspects; for instance, an acousto-optic modulator for optical heterodyne detection or a reference path was removed from the setup. However, further simplification of the system is required for its practical applications. To date, we have developed a simplified OCDR that does not utilize an electrical spectrum analyzer (ESA) for processing electrical signals, and experimentally verified that the ESA-free system shows stable and high-speed operation (repetition rate: up to 100 Hz) even with a high spatial resolution, suggesting the possibility of higher-speed operation. In this work, the ESA-free OCDR was used to measure the reflected power distributions at a repetition rate of 1 kHz, which is 10 times faster than the highest value ever reported. We also demonstrate that our system can mitigate the trade-off relationship between operating speed and spatial resolution, which will boost the potential applicability of OCDR. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | optical fiber sensors / optical correlation-domain reflectometry(OCDR) / distributed reflectivity measurement / high-speed operation / spatial resolution |
| Paper # | OFT2021-23 |
| Date of Issue | 2021-10-07 (OFT) |
| Conference Information | |
| Committee | OFT |
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| Conference Date | 2021/10/14(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 | Yukihiro Goto(NTT) / Minoru Takahashi(Fujikura) |
| Paper Information | |
| Registration To | Technical Committee on Optical Fiber Technology |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Poster Presentation] World-fastest operation of OCDR without spatial resolution deterioration |
| Sub Title (in English) | |
| Keyword(1) | optical fiber sensors |
| Keyword(2) | optical correlation-domain reflectometry(OCDR) |
| Keyword(3) | distributed reflectivity measurement |
| Keyword(4) | high-speed operation |
| Keyword(5) | spatial resolution |
| 1st Author's Name | Tomoya Miyamae |
| 1st Author's Affiliation | Yokohama National University(YNU) |
| 2nd Author's Name | Zhu Guangtao |
| 2nd Author's Affiliation | Yokohama National University(YNU) |
| 3rd Author's Name | Takaki Kiyozumi |
| 3rd Author's Affiliation | Yokohama National University(YNU) |
| 4th Author's Name | Kohei Noda |
| 4th Author's Affiliation | Tokyo Institute of Technology/Yokohama National University(Tokyo Tech/YNU) |
| 5th Author's Name | Heeyoung Lee |
| 5th Author's Affiliation | Shibaura Institute of Technology(SIT) |
| 6th Author's Name | Kentaro Nakamura |
| 6th Author's Affiliation | Tokyo Institute of Technology(Tokyo Tech) |
| 7th Author's Name | Yosuke Mizuno |
| 7th Author's Affiliation | Yokohama National University(YNU) |
| Date | 2021-10-14 |
| Paper # | OFT2021-23 |
| Volume (vol) | vol.121 |
| Number (no) | OFT-199 |
| Page | pp.pp.9-12(OFT), |
| #Pages | 4 |
| Date of Issue | 2021-10-07 (OFT) |