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Paper Abstract and Keywords
Presentation 2018-01-30 08:50
Feedback-control-free Adaptive Equalization Using Dual-polarization Pilot Tones for Optical Coherent Reception
Tomoki Nishiyama, Shuai Yuan, Koji Igarashi (Osaka Univ.) OCS2017-73
Abstract (in Japanese) (See Japanese page) 
(in English) We propose feedback-control-free adaptive equalization for optical coherent receivers. The polarization rotation and the carrier phase fluctuation of the received signals are simultaneously compensated for by using dual-polarization pilot tones. Compared with the conventional feedback-control-based scheme, higher stable operation is achieved in our proposed scheme even for high-order quadrature amplitude modulation (QAM) optical signals impaired with large additive white Gaussian noise, although there are relatively large errors on compensation for the polarization rotation and the carrier phase fluctuation. With our proposed scheme, we numerically evaluate bit-error rate (BER) characteristics of dual-polarization 64QAM optical signals when an optical local oscillator with a spectral linewidth of 100kHz is used. The calculated results suggest that penalty on the signal-to-noise ratio (SNR) required for BER of 1.5×10^{-2} could be suppressed to be smaller than 3dB in the low SNR region, in which the stable operation of the conventional feedback-control-based scheme cannot be achieved.
Keyword (in Japanese) (See Japanese page) 
(in English) optical coherent detection / adaptive equalizer / digital signal processing / / / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 423, OCS2017-73, pp. 37-41, Jan. 2018.
Paper # OCS2017-73 
Date of Issue 2018-01-22 (OCS) 
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)
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Conference Information
Committee CS OCS  
Conference Date 2018-01-29 - 2018-01-30 
Place (in Japanese) (See Japanese page) 
Place (in English) Ehime University 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Core and metro system, Submarine telecommunications system, Optical access system and next generation PON, Ethernet, Optical Transport Network (OTN), Transmission monitoring and control, Design and tool for optical transmission system, Co-operation between optical and mobile, etc. 
Paper Information
Registration To OCS 
Conference Code 2018-01-CS-OCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Feedback-control-free Adaptive Equalization Using Dual-polarization Pilot Tones for Optical Coherent Reception 
Sub Title (in English)  
Keyword(1) optical coherent detection  
Keyword(2) adaptive equalizer  
Keyword(3) digital signal processing  
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1st Author's Name Tomoki Nishiyama  
1st Author's Affiliation Osaka University (Osaka Univ.)
2nd Author's Name Shuai Yuan  
2nd Author's Affiliation Osaka University (Osaka Univ.)
3rd Author's Name Koji Igarashi  
3rd Author's Affiliation Osaka University (Osaka Univ.)
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Speaker Author-1 
Date Time 2018-01-30 08:50:00 
Presentation Time 25 minutes 
Registration for OCS 
Paper # OCS2017-73 
Volume (vol) vol.117 
Number (no) no.423 
Page pp.37-41 
#Pages 5 
Date of Issue 2018-01-22 (OCS) 

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