NDLI: Compact optical duplicate system for satellite-ground laser communications: application of averaging effects

Content Provider	Springer Nature Link
Author	Nakayama, Tomoko Takayama, Yoshihisa Fujikawa, Chiemi Watanabe, Eriko Kodate, Kashiko
Copyright Year	2014
Abstract	In recent years, there has been considerable interest in satellite-ground laser communication due to an increase in the quantity of data exchanged between satellites and the ground. However, improving the quality of this data communication is necessary as laser communication is vulnerable to air fluctuation. We first verify the spatial and temporal averaging effects using light beam intensity images acquired from middle-range transmission experiments between two ground positions and the superposition of these images using simulations. Based on these results, we propose a compact and lightweight optical duplicate system as a multi-beam generation device with which it is easy to apply the spatial averaging effect. Although an optical duplicate system is already used for optical correlation operations, we present optimum design solutions, design a compact optical duplicate system for satellite-ground laser communications, and demonstrate the efficacy of this system using simulations.
Starting Page	659
Ending Page	667
Page Count	9
File Format	PDF
ISSN	13406000
Journal	Optical Review
Volume Number	21
Issue Number	5
e-ISSN	13499432
Language	English
Publisher	The Optical Society of Japan
Publisher Date	2014-10-03
Publisher Place	Japan
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	satellite-ground laser communication optical duplicate system air fluctuation multi-beam generation spatial averaging effect temporal averaging effect Physics
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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