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Paper Abstract and Keywords
Presentation 2009-11-13 14:10
Signal Amplification and Photorefractive Phase Conjugation for Space Laser Communications
Christian A. Schaefer (NICT) OME2009-60 OPE2009-155
Abstract (in Japanese) (See Japanese page) 
(in English) Photorefractive phase conjugation is attractive for applying in future laser communications terminals due to its incorporated tracking and wave front distortion compensation capabilities. But due to the comparatively high required optical power, it is generally unpractical to employ components based on the photorefractive effect into a space laser communications system.
This paper follows the approach to overcome this problem by using a semiconductor optical amplifier (SOA). Since the amplified spontaneous emission noise arising in the amplification process has an erasing effect on the diffraction gratings in the photorefractive medium, it also affects the creation of phase conjugation. Therefore, the performance of photorefractive phase conjugation and two-wave-mixing depending on the noise power is examined and the minimum SOA-input power to successfully perform photorefractive experiments is determined experimentally by using a Rh:BaTiO3 photorefractive crystal.
Keyword (in Japanese) (See Japanese page) 
(in English) Semiconductor Optical Amplifier / Phase Conjugation / Near-Infrared / Optical Noise / / / /  
Reference Info. IEICE Tech. Rep., vol. 109, no. 284, OPE2009-155, pp. 39-44, Nov. 2009.
Paper # OPE2009-155 
Date of Issue 2009-11-06 (OME, OPE) 
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 OME2009-60 OPE2009-155

Conference Information
Committee OPE OME  
Conference Date 2009-11-13 - 2009-11-13 
Place (in Japanese) (See Japanese page) 
Place (in English) Kikai-Shinko-Kaikan Bldg. 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To OPE 
Conference Code 2009-11-OPE-OME 
Language English 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Signal Amplification and Photorefractive Phase Conjugation for Space Laser Communications 
Sub Title (in English)  
Keyword(1) Semiconductor Optical Amplifier  
Keyword(2) Phase Conjugation  
Keyword(3) Near-Infrared  
Keyword(4) Optical Noise  
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1st Author's Name Christian A. Schaefer  
1st Author's Affiliation National Institute of Information and Communications Technology (NICT)
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Speaker Author-1 
Date Time 2009-11-13 14:10:00 
Presentation Time 25 minutes 
Registration for OPE 
Paper # OME2009-60, OPE2009-155 
Volume (vol) vol.109 
Number (no) no.283(OME), no.284(OPE) 
Page pp.39-44 
#Pages 6 
Date of Issue 2009-11-06 (OME, OPE) 

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