QUESTION 5 An optical receiver consists of a PIN photodiode with a responsivity

Question

QUESTION 5 An optical receiver consists of a PIN photodiode with a responsivity of 0.9 A/W, and a 100 load resistor. If the optical power incident on the photodiode is 525 W , calculate the detected voltage across the load resistor. 0.4725 mV 21.7 mV O229.1 mV 324 mv O 47.25 mV 52.5 mV QUESTION 6 Light at a wavelength of 1300 nm is incident on a receiver with a sensitivity of -26 dBm. If the minimum operating current for the receiver is 1.7 HA, what is the probability that an incident photon will produce an electron-hole pair in the depletion region of the photodetector? 57.5% 24% 64.6% 69.4% 0.2% 100%

Explanation / Answer

5.

detected voltage across load resistor is given by

V=P*R*p

p=respnsivity

P=optical power inside photo diode

RL=Load resistor

=>V=0.9*(525*10-6)*100

V=47.25 mV

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