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http://seminarsprojects.net/Thread-free-space-laser-communications--727

http://seminarsprojects.net/Thread-laser-based-communication-link
http://seminarsprojects.net/Thread-laser-communication

http://seminarsprojects.net/Thread-space-laser-communications-systems-technologies-and-applications

h ....etc

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Free Space Laser Communications

Lasers have been considered for space communications since their realization in 1960. However, it was soon recognized that, although the laser had potential for the transfer of data at extremely high rates, specific advancements were needed in component performance and systems engineering, particularly for space-qualified hardware. Advances in system architecture, data formatting, and component technology over the past three decades have made laser communications in space not only a viabl ....etc

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presented by:
SUBIN.K.M
S7 ECE
ROLL NO: 01- 651



ABSTRACT
Laser communications offer a viable alternative to RF communications for intersatellite links and other applications where high-performance links are necessity. High data rate, small antenna size, narrow beam divergence, and a narrow field of view are characteristics of laser communication that offer a number of potential advantages for system design.

INTRODUCTION
Lasers have been considered for space communication ....etc

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To get full information or details of free space laser communications please have a look on the pages

http://seminarsprojects.net/Thread-space-laser-communications

http://seminarsprojects.net/Thread-free-space-laser-communications--2019

http://seminarsprojects.net/Thread-free-space-laser-communications--727?pid=50653&mode=threaded

http://seminarsprojects.net/Thread-space-laser-communications-systems-technologies-and-applications?pid=47053&mode=threaded

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Hi,
visit this thread for laser communications:
http://seminarsprojects.net/Thread-Laser-communication-systems--6013

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http://arrltis/info/pdf/9009019.pdf ....etc

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Definition
Laser communications offer a viable alternative to RF communications for inter satellite links and other applications where high-performance links are a necessity. High data rate, small antenna size, narrow beam divergence, and a narrow field of view are characteristics of laser communications that offer a number of potential advantages for system design.

Lasers have been considered for space communications since their realization in 1960. Specific advancements were needed in component performance and system engineering particula ....etc

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i need a theory for projectof free space laser communication system ....etc

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to get information about the topic space laser communications full report ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-space-laser-communications

http://seminarsprojects.net/Thread-free-space-laser-communications--2019

http://seminarsprojects.net/Thread-free-space-laser-communications--727?pid=50653&mode=threaded

http://seminarsprojects.net/Thread-space-laser-communications-systems-technologies-and-applications?pid=47053&mode=threaded ....etc

[:=Read Full Message Here=:]

to get information about the topic space laser communications full report ppt and related topic refer the page link bellow

http://seminarsprojects.net/Thread-space-laser-communications

http://seminarsprojects.net/Thread-free-space-laser-communications--2019

http://seminarsprojects.net/Thread-free-space-laser-communications--727?pid=50653&mode=threaded

http://seminarsprojects.net/Thread-space-laser-communications-systems-technologies-and-applications?pid=47053&mode=threaded ....etc

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Introduction of Laser Communications



Diode Lasers

Laser diodes emit an elliptical beam with astigmatism
Better units will include corrective lenses for astigmatism and to make the dot appear round
Neither of these problems are inherently bad for DX purposes but correcting them also improves divergence, a big win (more gain).

Modulation

AM
Easy with gas lasers, hard with diodes
PWM (Pulse Width Modulation)
Used by Ramsey in their kit
PFM (Pulsed FM)
Potentially the ....etc

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