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WorksheetsFiber Optics
Total questions: 15
Worksheet time: 3hrs 16mins
Fiber optics uses what medium to send information?
Electrons
Phonons
Light
None of these are correct
What are the four parts of a fiber optic data link?
Transmitter, optical fiber, connectors/splices, receiver
Transmitter, optical fiber, data, optical connectors
Optical fiber, data, optical connectors, receiver
Optical fiber, optical connectors, optical splices, data
The fiber optic transmitter has which of the following functions?
Amplifies the optical signal
Converts the electrical input signal to an optical signal
Converts the input optical signal to an electrical signal
Amplifies the output electrical signal
What transmitter uses stimulated emission?
LED
LASER
VCSEL
APD
Fiber optic systems use what three types of optical sources?
LEDs, LASERs and VCSELs
PIN diodes, LASERs and LEDs
LEDs and LASERs and diodes
LASERs, diodes and APDs
The fiber optic receiver performs which of the following functions?
Amplifies the optical signal
Amplifies the electrical signal
Converts the electrical signal back into an optical signal
Converts the optical signal back into an electrical signal
What are the two types of optical detectors?
LEDs and APDs
PIN photodiodes and APDs
APDs and laser diodes
Laser diodes and PIN photodiodes
Who developed the first optical telegraph?
Kapany
Tyndall
Chappe
Wheeler
Who demonstrated the concept of “Total Internal Reflection?”
Kapany
Tyndall
Chappe
Wheeler
Of the following advantages, which one does NOT apply to fiber optics?
Lower signal attenuation
Increased bandwidth
Common ground required
Reduced size and weight
A Laser differs from ordinary light in three distinct ways. Its coherent, directional and monochromatic.
True
False
No matter where you are (a) percent of the distance your voice travels is through a fiber optic network
The basic structure of an optical fiber consists of which three parts?
Core
Ground
Cladding
Buffer
LED transmitters operate at wavelengths of 850nm and 1300nm.
True
False
In an optical system light OFF is a “1” and light ON is a “0”.
True
False
