Question: 7. (a) Show that, for a photonics system, shot noise will dominate the detected signal if Popt> ( (Equation 7.1) RZ where Popt is

7. (a) Show that, for a photonics system, shot noise will dominate

7. (a) Show that, for a photonics system, shot noise will dominate the detected signal if Popt> ( (Equation 7.1) RZ where Popt is the optical power on the photodetector, R, is the responsivity of the photodetector, Z is the load resistance, and T is the temperature of the load. Find the optical power above which shot noise dominates if R, = 0.8 A-W, Z = 50 , and T = 298 K. Express your answer in dBm. [4 marks]

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