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Paper Abstract and Keywords
Presentation 2008-11-20 11:50
Reduction of Backscattering Induced Noise by Carrier Suppression in Waveguide-type Optical Passive Ring Resonator Gyroscope
Huilian Ma, Zuyuan He, Kazuo Hotate (Univ. of Tokyo) OFT2008-54
Abstract (in Japanese) (See Japanese page) 
(in English) For applications requiring smaller, lighter and robust gyros, waveguide-type optical passive ring resonator gyroscope (OPRG) is a promising candidate. The drift level of OPRG, which is seriously affected by the backscattering induced noise, is limited by the carrier suppression level in phase modulation spectroscopy technique. In this paper, we examine the influence of the carrier suppression level on the gyro performance experimentally. In order to achieve high carrier suppression directly by controlling the peak-to-peak voltage of the sine wave applied to the phase modulator, high precision calibration of the phase modulator is necessary. Suppressed carrier level higher than 50dB has been obtained by controlling the voltage with the accuracy of 1 mV. Proportional integrator (PI) is adopted to eliminate the residual error for the lock-in frequency. A bias stability of 3.1°/s is firstly demonstrated in a silica waveguide ring resonator with the ring length of 7.9cm.
Keyword (in Japanese) (See Japanese page) 
(in English) Resonator optic gyro / backscattering induced noise / carrier suppression / silica waveguide ring resonator / / / /  
Reference Info. IEICE Tech. Rep., vol. 108, no. 310, OFT2008-54, pp. 39-42, Nov. 2008.
Paper # OFT2008-54 
Date of Issue 2008-11-13 (OFT) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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 OFT OCS ITE-BCT IEE-CMN  
Conference Date 2008-11-20 - 2008-11-21 
Place (in Japanese) (See Japanese page) 
Place (in English)  
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Paper Information
Registration To OFT 
Conference Code 2008-11-OFT-OCS-BCT-CMN 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Reduction of Backscattering Induced Noise by Carrier Suppression in Waveguide-type Optical Passive Ring Resonator Gyroscope 
Sub Title (in English)  
Keyword(1) Resonator optic gyro  
Keyword(2) backscattering induced noise  
Keyword(3) carrier suppression  
Keyword(4) silica waveguide ring resonator  
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1st Author's Name Huilian Ma  
1st Author's Affiliation The University of Tokyo (Univ. of Tokyo)
2nd Author's Name Zuyuan He  
2nd Author's Affiliation The University of Tokyo (Univ. of Tokyo)
3rd Author's Name Kazuo Hotate  
3rd Author's Affiliation The University of Tokyo (Univ. of Tokyo)
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Speaker Author-1 
Date Time 2008-11-20 11:50:00 
Presentation Time 25 minutes 
Registration for OFT 
Paper # OFT2008-54 
Volume (vol) vol.108 
Number (no) no.310 
Page pp.39-42 
#Pages
Date of Issue 2008-11-13 (OFT) 


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