When the mean optical power of 120 µW is used as an input to a fiber of length 8km, the mean optical power at the fiber output is 3 µW. Determine: a) The overall signal attenuation in decibels through the fiber. b) The signal attenuation per kilometer for the fiber. c) The numeric input/output ratio in (a). d) The overall signal attenuation when using the same fiber with splices at 1km intervals each giving an attenuation of 1dB.
When the mean optical power of 120 µW is used as an input to a fiber of length 8km, the mean optical power at the fiber output is 3 µW. Determine: a) The overall signal attenuation in decibels through the fiber. b) The signal attenuation per kilometer for the fiber. c) The numeric input/output ratio in (a). d) The overall signal attenuation when using the same fiber with splices at 1km intervals each giving an attenuation of 1dB.
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Transcribed Image Text:When the mean optical power of 120 µW is used as an input to a fiber
of length 8km, the mean optical power at the fiber output is 3 µW.
Determine:
a) The overall signal attenuation in decibels through the fiber.
b) The signal attenuation per kilometer for the fiber.
c) The numeric input/output ratio in (a).
d) The overall signal attenuation when using the same fiber with
splices at 1km intervals each giving an attenuation of 1dB.
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