IEICE Technical Committee Submission System
Conference Paper's Information
Online Proceedings
[Sign in]
Tech. Rep. Archives
 Go Top Page Go Previous   [Japanese] / [English] 

Paper Abstract and Keywords
Presentation 2018-10-11 14:00
[Poster Presentation] Observation of GAWBS noise and development of its compensation technique in digital coherent optical transmission
Naoya Takefushi, Masato Yoshida, Keisuke Kasai, Toshihiko Hirooka, Masataka Nakazawa (Tohoku Univ.) OFT2018-29
Abstract (in Japanese) (See Japanese page) 
(in English) Guided acoustic-wave Brillouin scattering (GAWBS) noise is an optical phase fluctuation that occurs coherently with thermally excited vibration modes in a cylindrical fiber structure. Since GAWBS noise propagates in the transmission direction, it may degrade the quality of the transmitted optical data signal. We showed that an optical phase noise of more than 1 degree was applied to the data signal after a 160 km transmission, which indicates GAWBS noise may become a critical issue in an ultra-multilevel QAM transmission such as 1024 QAM. To compensate for the phase noise, we have newly proposed a reverse phase modulation (RPM) method, where GAWBS information was detected by using a pilot tone and fed back to the data signal in a reverse phase relation. Furthermore, we have successfully removed an error floor caused by GAWBS noise in a polarization-multiplexed 1024 QAM-160 km transmission with RPM method.
Keyword (in Japanese) (See Japanese page) 
(in English) Guided acoustic-wave Brillouin scattering / ultra-multilevel QAM transmission / digital coherent optical transmission / / / / /  
Reference Info. IEICE Tech. Rep., vol. 118, no. 238, OFT2018-29, pp. 79-83, Oct. 2018.
Paper # OFT2018-29 
Date of Issue 2018-10-04 (OFT) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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 OFT2018-29

Conference Information
Committee OFT  
Conference Date 2018-10-11 - 2018-10-12 
Place (in Japanese) (See Japanese page) 
Place (in English) Touhoku Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To OFT 
Conference Code 2018-10-OFT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Observation of GAWBS noise and development of its compensation technique in digital coherent optical transmission 
Sub Title (in English)  
Keyword(1) Guided acoustic-wave Brillouin scattering  
Keyword(2) ultra-multilevel QAM transmission  
Keyword(3) digital coherent optical transmission  
1st Author's Name Naoya Takefushi  
1st Author's Affiliation Tohoku University (Tohoku Univ.)
2nd Author's Name Masato Yoshida  
2nd Author's Affiliation Tohoku University (Tohoku Univ.)
3rd Author's Name Keisuke Kasai  
3rd Author's Affiliation Tohoku University (Tohoku Univ.)
4th Author's Name Toshihiko Hirooka  
4th Author's Affiliation Tohoku University (Tohoku Univ.)
5th Author's Name Masataka Nakazawa  
5th Author's Affiliation Tohoku University (Tohoku Univ.)
6th Author's Name  
6th Author's Affiliation ()
7th Author's Name  
7th Author's Affiliation ()
8th Author's Name  
8th Author's Affiliation ()
9th Author's Name  
9th Author's Affiliation ()
10th Author's Name  
10th Author's Affiliation ()
11th Author's Name  
11th Author's Affiliation ()
12th Author's Name  
12th Author's Affiliation ()
13th Author's Name  
13th Author's Affiliation ()
14th Author's Name  
14th Author's Affiliation ()
15th Author's Name  
15th Author's Affiliation ()
16th Author's Name  
16th Author's Affiliation ()
17th Author's Name  
17th Author's Affiliation ()
18th Author's Name  
18th Author's Affiliation ()
19th Author's Name  
19th Author's Affiliation ()
20th Author's Name  
20th Author's Affiliation ()
Date Time 2018-10-11 14:00:00 
Presentation Time 90 
Registration for OFT 
Paper # IEICE-OFT2018-29 
Volume (vol) IEICE-118 
Number (no) no.238 
Page pp.79-83 
#Pages IEICE-5 
Date of Issue IEICE-OFT-2018-10-04 

[Return to Top Page]

[Return to IEICE Web Page]

The Institute of Electronics, Information and Communication Engineers (IEICE), Japan