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Paper Abstract and Keywords
Presentation 2014-05-23 14:30
Frequency-phase synchronization of regeneratively and harmonically mode-locked fiber ring laser using Digital Signal Processing -- A study on control algorithm --
Tatsuya Kaneko, Yuta Haga, Kota Imazeki, Satoshi Ebisawa, Joji Maeda (TUS) LQE2014-16
Abstract (in Japanese) (See Japanese page) 
(in English) When synchronizing the repetition frequency of a regeneratively and harmonically mode-locked fiber ring laser to the reference frequency over 10 GHz using a phase-locked loop (PLL), a balanced mixer is often used as a phase comparator of the PLL. However, the available frequency range synchronized to the reference is quite narrow. In this paper, we propose a method to sweep the pulse repetition frequency to the synchronization range of the PLL by using digital signal processing, and to stabilize the laser to a synchronized state through proportional integral derivative (PID) control. The proposed algorithm achieved frequency synchronization in the preliminary experiment replacing the fiber laser to a voltage-controlled oscillator. Using the same algorithm, we successfully observed the frequency synchronization a mode-locked fiber, though frequency fluctuation less than several hertz still remained.
Keyword (in Japanese) (See Japanese page) 
(in English) Fiber ring laser / Regenerative mode-locking / Phase locked loop / Digital signal processing / Voltage controlled oscillator / Pulse laser / /  
Reference Info. IEICE Tech. Rep., vol. 114, no. 46, LQE2014-16, pp. 69-74, May 2014.
Paper # LQE2014-16 
Date of Issue 2014-05-15 (LQE) 
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 LQE2014-16

Conference Information
Committee LQE LSJ  
Conference Date 2014-05-22 - 2014-05-23 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To LQE 
Conference Code 2014-05-LQE-LSJ 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Frequency-phase synchronization of regeneratively and harmonically mode-locked fiber ring laser using Digital Signal Processing 
Sub Title (in English) A study on control algorithm 
Keyword(1) Fiber ring laser  
Keyword(2) Regenerative mode-locking  
Keyword(3) Phase locked loop  
Keyword(4) Digital signal processing  
Keyword(5) Voltage controlled oscillator  
Keyword(6) Pulse laser  
Keyword(7)  
Keyword(8)  
1st Author's Name Tatsuya Kaneko  
1st Author's Affiliation Tokyo University of Science (TUS)
2nd Author's Name Yuta Haga  
2nd Author's Affiliation Tokyo University of Science (TUS)
3rd Author's Name Kota Imazeki  
3rd Author's Affiliation Tokyo University of Science (TUS)
4th Author's Name Satoshi Ebisawa  
4th Author's Affiliation Tokyo University of Science (TUS)
5th Author's Name Joji Maeda  
5th Author's Affiliation Tokyo University of Science (TUS)
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Speaker Author-1 
Date Time 2014-05-23 14:30:00 
Presentation Time 25 minutes 
Registration for LQE 
Paper # LQE2014-16 
Volume (vol) vol.114 
Number (no) no.46 
Page pp.69-74 
#Pages 6 
Date of Issue 2014-05-15 (LQE) 

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