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Consider a 1550 nm laser diode with a rise time of 0.8 ns, spectral half-width of...

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Electrical Engineering

Consider a 1550 nm laser diode with a rise time of 0.8 ns,spectral half-width of 6 nm, that launches 2 mW optical power intoa 60 km long single-mode fiber with an attenuation of 0.3 dB/km.The intramodal dispersion is 3 ps/nm.km. An InGaAs APD with a -32dBm sensitivity is used at 2.5 Gb/s (NRZ coding). A short opticaljumper cable at each end of the cable with a loss of 3 dB is usedto connect the fiber to the equipment rack. In addition, theconnector loss at each joint between the jumper and fiber cable andjumper and equipment rack is 1 dB each. Determine the temporalresponse of the system components and calculate the maximumtransmission rate. Discuss if the system is bandwidth limited.

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