annserah26 annserah26

03-06-2024
Engineering

Answered

consider a star network that operates at 1Gb/s and uses a 16*16 star coupler with an excess loss of 1.35dB. Assuming each station is located 5km from the star coupler, the fiber attenuation is 0.25dB/km at 1550nm. let the connector loss at each of the link be 1dB. suppose the optical source emits 0dB into the fiber and that the PIN photodetector has a -27dBm sensitivity at 1Gb/s. Show the system margin to be 9.11dB

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