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In an optical fibre, the power drops by a factor of 10 approximately every 30 km. If the transmit power is 0.3 W

(= 3x10-1), how far will a signal be transmitted before the power is attenuated to 300 μW? Include a table showing the signal power vs. distance in 30 km intervals as part of your answer.

If a high-quality coaxial cable (LDF5-50A) operating at 2 Mbps is used instead of an optical fibre, how would you expect the calculated distance value to change?

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The reduction of power occurs in the Optical fibre cable when the signal is passing from one position to another regarded as... View the full answer


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