a.3 A 30 km long optical fibre has an attenuation of 0.8 dB/km at 1300 nm. Find the optical power launched Into the fibre if the output power is 200 uW. (6)
a.3 A 30 km long optical fibre has an attenuation of 0.8 dB/km at 1300 nm. Find the optical power launched Into the fibre if the output power is 200 uW. (6)
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Transcribed Image Text:a.a
A 30 km long optical fibre has an attenuation of 0.8 dB/km at 1300 nn. Find the
optical power launched into the fibre If the output power Is 200 uW.
(6)
3.4
Determine the total delay time in a 1 km long fibre with a core refractive index of
1.46, refractive Index difference of 1 % operating at a wavelength of 820 nm and
AN 40 nm.
(5)
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