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| Presentation | 2011-01-27 16:25 Fading noise suppression in OFDR by optical frequency comb and variable delay line Takushi Kazama, Zuyuan He (Univ. Tokyo), Yusuke Koshikiya, Xinyu Fan, Fumihiko Ito (NTT), Kazuo Hotate (Univ. Tokyo)  OFT2010-54 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Optical reflectometry is a technique for distributed measurements which gives the profile of reflections and backscattering as a function of position along optical waveguides. Specifically, optical frequency domain reflectometry (OFDR) is a technique of high spatial resolution and high sensitivity. The accuracy of OFDR is decreased by coherent fading noise which can be reduced by the frequency shift averaging method. In this report, we propose a high accuracy OFDR using an optical frequency comb and a variable optical delay line as a countermeasure for fading noise. This scheme corresponds to a frequency shift averaging of the number of the teeth of the optical frequency comb. Using this scheme combining with conventional frequency shift averaging, we showed better experimental result in terms of accuracy with optical frequency comb than single wavelength laser. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | optical frequency domain reflectometry / fading noise / frequency shift averaging / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 110, no. 397, OFT2010-54, pp. 37-42, Jan. 2011. | |
| Paper # | OFT2010-54 | |
| Date of Issue | 2011-01-20 (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 | OFT2010-54 |
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| Conference Information | |
| Committee | OFT |
| Conference Date | 2011-01-27 - 2011-01-28 |
| 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 | 2011-01-OFT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Fading noise suppression in OFDR by optical frequency comb and variable delay line |
| Sub Title (in English) | |
| Keyword(1) | optical frequency domain reflectometry |
| Keyword(2) | fading noise |
| Keyword(3) | frequency shift averaging |
| Keyword(4) | |
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| 1st Author's Name | Takushi Kazama |
| 1st Author's Affiliation | The University of Tokyo (Univ. Tokyo) |
| 2nd Author's Name | Zuyuan He |
| 2nd Author's Affiliation | The University of Tokyo (Univ. Tokyo) |
| 3rd Author's Name | Yusuke Koshikiya |
| 3rd Author's Affiliation | NTT Corporation (NTT) |
| 4th Author's Name | Xinyu Fan |
| 4th Author's Affiliation | NTT Corporation (NTT) |
| 5th Author's Name | Fumihiko Ito |
| 5th Author's Affiliation | NTT Corporation (NTT) |
| 6th Author's Name | Kazuo Hotate |
| 6th Author's Affiliation | The University of Tokyo (Univ. Tokyo) |
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| Speaker | Author-1 |
| Date Time | 2011-01-27 16:25:00 |
| Presentation Time | 25 minutes |
| Registration for | OFT |
| Paper # | OFT2010-54 |
| Volume (vol) | vol.110 |
| Number (no) | no.397 |
| Page | pp.37-42 |
| #Pages | 6 |
| Date of Issue | 2011-01-20 (OFT) |
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