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A 650-nm continuous-wave laser beam strikes a photodetector. The photon arrival rate is 4x10^16 photons per...

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Electrical Engineering

A 650-nm continuous-wave laser beam strikes a photodetector. Thephoton arrival rate is 4x10^16 photons per second, resulting in6x10^16 electrons per second being collected at the photodetector'spositive contact (i.e.,anode).

1. What is the average received optical power in mW?

2. What is the average photocurrent in the external circuit?

3. What is the quantum efficiency of the photodetector?

4. What is the responsivity?

5. Does this photodetector exhibit photocurrent gain?

Answer & Explanation Solved by verified expert
3.6 Ratings (425 Votes)
3quantum efficiencyQEelectrons collected per secondphotons incident per second So QE 6101641016 QE15 OR 150 4RESPONSIVITYQEelementary charge energy hv So if we    See Answer
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