Question
a.
True
b.
False
c.
May be True or False
d.
Can't say
Posted under Optical Communication
Interact with the Community - Share Your Thoughts
Uncertain About the Answer? Seek Clarification Here.
Understand the Explanation? Include it Here.
Q. The photocurrent in a photodiode is directly proportional to absorption coefficient.
Similar Questions
Explore Relevant Multiple Choice Questions (MCQs)
Q. The absorption coefficient of semiconductor materials is strongly dependent on __________
View solution
Q. Direct absorption requires assistance of photon.
View solution
Q. In optical fiber communication, the only weakly absorbing material over wavelength band required is?
View solution
Q. The threshold for indirect absorption occurs at wavelength __________
View solution
Q. The semiconductor material for which the lowest energy absorption takes place is?
View solution
Q. The wavelength range of interest for Germanium is __________
View solution
Q. A photodiode should be chosen with a ________________ less than photon energy.
View solution
Q. ________________ photodiodes have large dark currents.
View solution
Q. For fabrication of semiconductor photodiodes, there is a drawback while considering _________________
View solution
Q. _________________ materials are potentially superior to germanium.
View solution
Q. ____________ alloys such as InGaAsP and GaAsSb deposited on InP and GaSb substrate.
View solution
Q. _________________ alloys can be fabricated in hetero-junction structures.
View solution
Q. The alloys lattice matched to InP responds to wavelengths up to 1.7 μm is?
View solution
Q. The fraction of incident photons generated by photodiode of electrons generated collected at detector is known as ___________________
View solution
Q. In photo detectors, energy of incident photons must be ________________ band gap energy.
View solution
Q. GaAs has band gap energy of 1.93 eV at 300 K. Determine wavelength above which material will cease to operate.
View solution
Q. The long cutoff wavelength of GaAs is 0.923 μm. Determine bandgap energy.
View solution
Q. Quantum efficiency is a function of photon wavelength.
View solution
Q. Determine quantum efficiency if incident photons on photodiodes is 4*10¹¹ and electrons collected at terminals is 1.5*10¹¹?
View solution
Q. A photodiode has quantum efficiency of 45% and incident photons are 3*10¹¹. Determine electrons collected at terminals of device.
View solution
Recommended Subjects
Are you eager to expand your knowledge beyond Optical Communication? We've handpicked a range of related categories that you might find intriguing.
Click on the categories below to discover a wealth of MCQs and enrich your understanding of various subjects. Happy exploring!
