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PRESENTATION ,[object Object],[object Object],[object Object],[object Object],[object Object]
TOPICS IN PRESENTATION ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
HISTORY  ,[object Object],[object Object],[object Object],[object Object]
CONTD. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
 
OPTICAL FIBER ,[object Object],[object Object],[object Object]
OPTICAL FIBER ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
OPTICAL FIBER ,[object Object],[object Object],[object Object],[object Object]
OPTICAL FIBER LINK
FIBER USED ,[object Object],[object Object],[object Object]
OPTICAL FIBER ,[object Object],[object Object],[object Object],[object Object],[object Object]
ABSORPTION LOSSES IN OPTICAL FIBER Loss (dB/km) 1 0 0.7 0.8 Wavelength (  m) 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 2 3 4 5 6 Peaks caused by OH -  ions Infrared absorption Rayleigh scattering & ultraviolet absorption
LIGHT SOURCES  ,[object Object],[object Object],[object Object],[object Object],[object Object]
LIGHT EMITTING DIODE ,[object Object],[object Object]
LIGHT EMITTING DIODE ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
LASER ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
LASER ,[object Object],[object Object],[object Object]
LIGHT DETECTORS ,[object Object],[object Object],[object Object]
LIGHT DETECTORS ,[object Object],[object Object],[object Object]
OPTICAL AMPLIFIERS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Types of optical amplifiers ,[object Object],[object Object]
Semiconductor Optical Amplifiers   ,[object Object],[object Object],[object Object]
                      
EDFA ,[object Object],[object Object]
 
[object Object]

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