6- You have a laser diode operating at 850 nm and capable of coupling 1 m...

6- You have a laser diode operating at 850 nm and capable of coupling 1 m W into a fiber, N sections of cable each of which is 500 m long, has 0.5 dB/km attenuation, and has connectors on both end. Each connector has a connector loss 0f 1.0 dB/connector. Also, you have a PIN photodiode receiver and an avalanche photodiode receiver. Using these components, you wish to construct a 7km link operating at 20Mb/s. If the sensitivities of the pin and APD receivers are -30 and -40dBm at 20Mb/s, respectively, perform calculations to determine which receiver or any or none should be used if a 6dB system operating margin is required?

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genius_generous answered 1 year ago

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