1. FREE SPACE OPTICSFREE SPACE OPTICS
A NEXT GENRATION WIRELESS COMMUNICATION
Presented By
K. Venkat RAO
M.L.E.C.J.U.V.Abhinay KUMAR
M.L.E.C
2. OVERVIEWOVERVIEW
ï Deals with FSO â a latest communication technique
ï Used in MANâs
ï Transmission through air
ï Doesnât involve optical fibers
ï Uses INFRARED RAYS
ï Doesnât involve jamming
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6. IS FSO OPTICAL OR WIRELESS?IS FSO OPTICAL OR WIRELESS?
ïShares some concepts of fiber optics
ï wavelengthâs 850nm to 1550 nm
ï laser and amplifiers
ïSending and receiving is done by OPTICAL-
ELECTRICAL-OPTICAL [O-E-O] presently
ïFSO can scale easily ultra bandwidthâs
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7. EDFAEDFA
ïEDFA-Erbium Doped Fiber Amplifier
ïA path way for high wavelengths and longer
distances
ïLess expenses for [O-E-O] conversion and
electrical amplification for each wavelength
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14. FSO SYSTEMSFSO SYSTEMS
ï Doesnât require any license
ï Wavelength is about 1micrometer
ï 1 micrometer beam can translate into frequencies of
several hundred terahertz
ï Better than the micro wave transmission (40gHz)
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15. FSO SYSTEMS(ContdâŠ)FSO SYSTEMS(ContdâŠ)
ïDivergence of 0.3 for distance of 1 KM
ï4mts diameter of beam
ïThose values are much more better than the
radial beams, micro beams
ïSince it works in free space it needs little
maintenance
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22. CONCLUSIONCONCLUSION
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FSO allows us to provide optical connectivity cost
effectively, quickly, reliably and is a most secured
data transmission technology.
23. REFERENCESREFERENCES
ï Mendelson , James S. and Dorrier , Charles R. âFree Space Optics:
Fixed Wireless Broadbandâ
ï White, Chad âHow to Squeeze More Data Over Whatâs Already
There â
ï www.laseroptronics.com
ï www.ieee.org
ï www.science tech.com
ï www.efymag.com
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