If the input power 100 W is launched into 6 km...

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If the input power 100μW is launched into 6 km of fiber, the mean optical power at the fiber output is 2μW. What is the overall signal attenuation through the fiber assuming there are no connectors or splices?

A. 15.23dB

B. 16.98dB

C. 17.12dB

D. 16.62dB

Answer: Option B

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