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| Presentation | 2024-01-19 11:10 Study of chirp-division multiplexing in time-gated digital optical frequency domain reflectometry using a sinusoidally frequency-modulated light source Ichiki Tanimura, Masayuki Matsumoto (Wakayama Univ.)  OFT2023-62 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Time-Gated Digital Optical Frequency Domain Reflectometry (TGD-OFDR) uses frequency-chirped optical pulses with time widths of several to several tens of microseconds as a probe light to measure the intensity and phase of Rayleigh reflected light from a sensing fiber under test (FUT), where digital signal processing is performed on the beat signal between the reflected light and a constant frequency reference light. Compared to the ordinary optical time-domain reflectometry (OTDR), TGD-OFDR has features such as the ability to measure over a long range while maintaining high spatial resolution. In this report, we study a TGD-OFDR using a sinusoidally frequency-modulated pulses as the probe light, and discuss whether reflections from pulses having the same frequency but chirps with opposite signs can be detected independently. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Optical frequency domain reflectometry / TGD-OFDR / optical fiber sensing / sinusoidal frequency modulation light source / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 123, no. 344, OFT2023-62, pp. 31-34, Jan. 2024. | |
| Paper # | OFT2023-62 | |
| Date of Issue | 2024-01-11 (OFT) | |
| ISSN | 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 | OFT2023-62 |
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| Conference Information | |
| Committee | OFT |
| Conference Date | 2024-01-18 - 2024-01-19 |
| 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 | 2024-01-OFT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Study of chirp-division multiplexing in time-gated digital optical frequency domain reflectometry using a sinusoidally frequency-modulated light source |
| Sub Title (in English) | |
| Keyword(1) | Optical frequency domain reflectometry |
| Keyword(2) | TGD-OFDR |
| Keyword(3) | optical fiber sensing |
| Keyword(4) | sinusoidal frequency modulation light source |
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| 1st Author's Name | Ichiki Tanimura |
| 1st Author's Affiliation | Wakayama University (Wakayama Univ.) |
| 2nd Author's Name | Masayuki Matsumoto |
| 2nd Author's Affiliation | Wakayama University (Wakayama Univ.) |
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| Speaker | Author-1 |
| Date Time | 2024-01-19 11:10:00 |
| Presentation Time | 25 minutes |
| Registration for | OFT |
| Paper # | OFT2023-62 |
| Volume (vol) | vol.123 |
| Number (no) | no.344 |
| Page | pp.31-34 |
| #Pages | 4 |
| Date of Issue | 2024-01-11 (OFT) |
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