WorksheetsOptical communication Quiz 12
Total questions: 10
Worksheet time: 10mins
which among the following represents the measures to minimize inhomogenities for Mie scattering reduction?
Extraction Control
Increases in RI difference
Removal of imperfection due to glass manufacturing process
All the above
In the dynamic response of Injection Laser Diode (ILD), the delay which is followed by ____ frequency damped oscillations give rise to the generation of relaxation oscillations.
Low
Medium
High
All of the above
Which among the following characteristics of Laser light specifies the precise movement of all individual light waves together through time and space?
Monochromatic
Directional
Coherent
Brightness
In spontaneous emission, the light source in an excited state undergoes the transition to a state with _______
Higher energy
Moderate energy
Lower energy
All of the above
Band loss is
A reduction in transmitter power caused by earth’s surface curvature
A reduction in strength of the signal caused by folded dipole bends
An attenuation increase caused by bends radiating from the side of the fiber
All of these
A single mode optical fiber has a core diameter of _____ nm.
0.1
0.01
0.2
0.05
Why are visible-light LEDs not used for fiber optics?
It has high losses
It has short wave
It has low attenuation
It has weak signal
An increase in light intensity produces fast optic switching due to
Increase in index of glass
Amplification of optical signal
High gain
Photoconductivity
The _____ is equal to the number of electrons emitted per second times the electron charge
Intensity
Optical power
Photocurrent
Responsitivity
The energy of the photon is
Directly proportional to its bandwidth
Directly proportional to the Planck’s constant
Inversely proportional to the Planck’s constant
Directly proportional to Boltzmann’s constant
