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| Presentation | 2013-01-24 14:30 Improvement of receiver sensitivity and elongation of measurement range in double-pulse BOTDR Masahiro Kumoda, Yusuke Anzai, Satoshi Matsuura, Yahei Koyamada (Ibaraki Univ.)  OFT2012-55 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | The receiver sensitivity of the double-pulse BOTDR was improved by 7 dB by shifting frequency band for the Brillouin scattered light detection from a microwave band around 11 GHz to the baseband. Thanks to this improvement, the measurement range was extended from several tens meters to 2 km. We achieved one-end access distributed Brillouin frequency shift measurement with a spatial resolution of 20 cm and an error (σ) of 0.50 MHz over a 2-km long fiber. The measurement range is limited by the self-phase modulation the double-pulsed light suffers in the fiber, and its further extension is possible by improving the pulse waveform. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Fiber sensor / Brillouin scattering / Distributed strain sensor / Distributed temperature sensor / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 112, no. 403, OFT2012-55, pp. 13-18, Jan. 2013. | |
| Paper # | OFT2012-55 | |
| Date of Issue | 2013-01-17 (OFT) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | OFT2012-55 |
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| Conference Information | |
| Committee | OFT |
| Conference Date | 2013-01-24 - 2013-01-25 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | OFT |
| Conference Code | 2013-01-OFT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Improvement of receiver sensitivity and elongation of measurement range in double-pulse BOTDR |
| Sub Title (in English) | |
| Keyword(1) | Fiber sensor |
| Keyword(2) | Brillouin scattering |
| Keyword(3) | Distributed strain sensor |
| Keyword(4) | Distributed temperature sensor |
| Keyword(5) | |
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| Keyword(8) | |
| 1st Author's Name | Masahiro Kumoda |
| 1st Author's Affiliation | Ibaraki University (Ibaraki Univ.) |
| 2nd Author's Name | Yusuke Anzai |
| 2nd Author's Affiliation | Ibaraki University (Ibaraki Univ.) |
| 3rd Author's Name | Satoshi Matsuura |
| 3rd Author's Affiliation | Ibaraki University (Ibaraki Univ.) |
| 4th Author's Name | Yahei Koyamada |
| 4th Author's Affiliation | Ibaraki University (Ibaraki Univ.) |
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| Speaker | Author-1 |
| Date Time | 2013-01-24 14:30:00 |
| Presentation Time | 25 minutes |
| Registration for | OFT |
| Paper # | OFT2012-55 |
| Volume (vol) | vol.112 |
| Number (no) | no.403 |
| Page | pp.13-18 |
| #Pages | 6 |
| Date of Issue | 2013-01-17 (OFT) |
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