engineering recuitment GATE IN Test Series 2023-24 Mock Test Communication Systems Optical Sources and Detector Photodiode
An avalanche photodiode has a quantum efficiency of 50% at a wavelength of 500 nm in the absence of multiplication. The device is then operated with a reverse bias to give a multiplication factor of 8. If the incident optical power is 4 μW then the photo-current generated is __________ μA.
Enter numerical value using the virtual keypad. Round off where necessary.