Write two advantages and disadvantages of laser communication
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Some of the advantages are:
1. High speed Carrier
2. High bandwidth, (wavelength separation of 1 nm, can give bandwidths of hundreds of Gigaherz)
3. Generation of narrow pulses for high bit-rate. (1 ns)
Some of the Disadvantages are:
The essential disadvantage of free space laser communications systems is that they require direct line-of-sight.
Operational distance is also a variable if there are Intervening materials such as rain, smoke, fog, glass etc. which reduce the light intensity by a combination of absorption and refraction.
Guided laser communication systems have many of the same problems as guided radio systems.
1. High speed Carrier
2. High bandwidth, (wavelength separation of 1 nm, can give bandwidths of hundreds of Gigaherz)
3. Generation of narrow pulses for high bit-rate. (1 ns)
Some of the Disadvantages are:
The essential disadvantage of free space laser communications systems is that they require direct line-of-sight.
Operational distance is also a variable if there are Intervening materials such as rain, smoke, fog, glass etc. which reduce the light intensity by a combination of absorption and refraction.
Guided laser communication systems have many of the same problems as guided radio systems.
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advantages
1) high speed carrier.
2) generation of narrow pulses for high bit rate.
disadvantages
1) require direct line of sight.
2)have same problems guided in radio systems.
1) high speed carrier.
2) generation of narrow pulses for high bit rate.
disadvantages
1) require direct line of sight.
2)have same problems guided in radio systems.
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