| Presentation | 2020-10-09 Distributed measurement of polarization state using OCDR 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 sensors have been extensively studied owing to their advantages such as long-range measurement, light weight, etc. As the state of polarization (SOP) in optical fibers is highly sensitive to various physical parameters including lateral pressure, bending, and magnetic field, various types of SOP-based sensors have been developed. To date, time-domain and frequency-domain configurations for measuring the SOP distribution along optical fibers have been reported, but the correlation-domain configuration (i.e., optical correlation-domain reflectometry (OCDR)), which has such unique advantages as random accessibility and real-time operation, has not been employed to measure SOPs so far. In this work, we newly develop a correlation-domain system for distributed measurement of the SOP of the backscattered light. Our method operates on the basis of the physical nature that the interference power of the reference and signal lights depends on the inner product of their Stokes vectors. We experimentally demonstrate the operation of this “polarization-sensitive OCDR (POCDR)” by measuring the SOP distribution of the light backscattered from a sensing fiber that is partially bent to induce linear birefringence. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | optical fiber sensing / optical correlation- domain reflectometry (OCDR) / state of polarization (SOP) / distributed polarization state sensors / distributed lateral pressure sensors |
| Paper # | OFT2020-36 |
| Date of Issue | 2020-10-01 (OFT) |
| Conference Information | |
| Committee | OFT |
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| 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 |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Distributed measurement of polarization state using OCDR |
| Sub Title (in English) | |
| Keyword(1) | optical fiber sensing |
| Keyword(2) | optical correlation- domain reflectometry (OCDR) |
| Keyword(3) | state of polarization (SOP) |
| Keyword(4) | distributed polarization state sensors |
| Keyword(5) | distributed lateral pressure sensors |
| 1st Author's Name | Kohei Noda |
| 1st Author's Affiliation | Tokyo Institute of Technology(Tokyo Tech) |
| 2nd Author's Name | Heeyoung Lee |
| 2nd Author's Affiliation | Shibaura Institute of Technology(SIT) |
| 3rd Author's Name | Kentaro Nakamura |
| 3rd Author's Affiliation | Tokyo Institute of Technology(Tokyo Tech) |
| 4th Author's Name | Yosuke Mizuno |
| 4th Author's Affiliation | Yokohama National University(YNU) |
| Date | 2020-10-09 |
| Paper # | OFT2020-36 |
| Volume (vol) | vol.120 |
| Number (no) | OFT-184 |
| Page | pp.pp.118-121(OFT), |
| #Pages | 4 |
| Date of Issue | 2020-10-01 (OFT) |