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Remote Triggered Fiber Optic Communication Laboratory
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Study Of LED and Detector Characteristics
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Study Of LED and Detector Characteristics
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Introduction
Theory
Set up
Procedure
Experiment
Animation
WebCam
Quiz
Feedback
1)
What light source has been used in the transmitter?
LASER
LED
Both
None of them
2)
Which one is correct?
The light output of an LED is approximately proportional to the current passing through it.
A typical LED has an operating voltage of about 0.7
The light output of an LED is approximately proportional to the voltage across it.
The light output of an LED is inversely proportional to the current passing through it.
3)
Which term from the following is not related to LASERs?
carrier recombination
population inversion
stimulated emission
None of the above
4)
A photodiode is constructed of GaAs, which has a band gap energy of 1.43eV at 300K. The long wavelength cut-off (λc) for GaAs is
950nm
890nm
869nm
1050nm
5)
Typical efficiency for green LED is
0.15 W/W
0.39 W/W
0.26 W/W
0.35 W/W
6)
From the following, what is a method of mixing colors to produce white light from an LED?
blue LED + green LED + red LED
pink LED + infrared LED + UV LED
yellow LED + red LED + infrared LED
None of the above
7)
Typical efficiency for red LED is
0.29 W/W
0.39 W/W
0.15 W/W
0.35 W/W
Cite this Simulator:
vlab.amrita.edu,. (2014). Study Of LED and Detector Characteristics. Retrieved 8 May 2024, from vlab.amrita.edu/?sub=59&brch=269&sim=1371&cnt=3514
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