Comprehensive Questions
(Frequently Most Tested) with
Verified Answers
Fiber Optics deals with the transmission of _____________ - Answer: Light
Refraction is due to a change in speed of ________________ - Answer: Medium
Light is composed of _______________ - Answer: photons
The color of light depends on its ____________________ - Answer: Wavelength
the part of the fiber optic system that is responsible for taking electrical input signals and converting
them to light energy is the _______________________ section - Answer: Transmitter
The part of the fiberoptic system that is responsible for the transfer of light waves by total internal
reflections is the ________________ section - Answer: Transmission
The part of the fiber optic system that is responsible for converting light energy into electrical output
signals is the ______________ section - Answer: Receiver
_______________ are the most commonly used light source for fiber optics - Answer: LED
The name used for the central core of a fiber optic cable that is specifically designed to guide light waves
is the __________________ - Answer: Waveguide
_____________________ can provide a powerful condensed beam within a narrow spectral range, but
are expensive. - Answer: Semiconductive Laser
, Micro bend losses are to ____________________________________________________________ -
Answer: imperfections in the core cladding boundary
the range of frequencies that an optical fiber can transport is called a ________________ - Answer:
bandwith
Transferring a larger amount of information at a higher bit rate with more voice channels per cable
requires a _________________________ - Answer: wider bandwidth
An optical fiber whose core is made of several concentric layers of material is called
______________________________________ - Answer: multiple graded index optical fiber
If you increase the intensity of a light applied to a photocell, the resistance of the photocell should
_____________________ - Answer: Decrease
An optical fiber that allows only one light path is - Answer: Single mode
A detectors responsivity changes with the ______________ _____________ - Answer: incident
wavelength
The type of signal transmitted over a fiber optic cable is _____________ - Answer: light
Fiber optic systems are capable of transmitting ____________ and ______________ signals - Answer:
Digital, analog
Transmitting a modulated signal through a fiber optic cable by varying the strength of the light beam is
_______________________ ______________________ - Answer: intensity modulation
A type of multiplexing that is that is most commonly used for fiber optic systems is ____________ -
Answer: TDM- Time Division Multiplexing