List of top Electronics and Communication Engineering Questions on Optical Communication asked in TANCET

Which of the following Light source is popularly used in optical communication?
The Numerical aperture of a fiber describes the __________ characteristics.
When mean optical power launched into an 8 km length of fiber is 12 \(\mu\)W, the mean optical power at the fiber output is 3 \(\mu\)W. Find the overall signal attenuation in dB