Fiber Optics Quiz Questions and Answers (Graded A)
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Course
Fiber Optics
Institution
Fiber Optics
Fiber Optics Quiz Questions and Answers (Graded A)Fiber Optics Quiz Questions and Answers (Graded A)Fiber Optics Quiz Questions and Answers (Graded A)Fiber Optics Quiz Questions and Answers (Graded A)
What are the two basic types of fiber? - ANSWER - - Multi-mode
- Single-mode
What are the thr...
Fiber Optics Quiz Questions and
Answers (Graded A)
What are the two basic types of fiber? - ANSWER - - Multi-mode
- Single-mode
What are the three parts of an optical fiber? (Hint, 3 C's) - ANSWER - - core
- cladding
- coating
The North American Standard core sizes for multimode fiber are
____ and ____. - ANSWER - - 52.5 microns
- 50 microns
The core size for Corning single-mode fiber is ____. - ANSWER - - 8.2 - 8.3 microns
The cladding size for both single-mode and multimode fiber is ____. - ANSWER - -
125 microns
What invention in 1950's made fiber optics more fasible? - ANSWER - - lasers
Index of refraction = speed of light in ____ divided by speed of light in ____. -
ANSWER - - a vacuum
- a medium
As the index of refraction increases, the speed of ligt in a medium ____. - ANSWER - -
decreases
In what portion of the fiber does light travel the fastest? - ANSWER - - cladding
, The principle of operation, which permits propogation of light in an SM fiber, is
known as ____. - ANSWER - - Total internal reflection
The loss of optical power is referred to as ____. - ANSWER - - attenuation
What are the two types of attenuation? - ANSWER - - extrinsic
- intrinsic
Which type of attenuation is diue to traits within the fiber? - ANSWER - - intrinsic
Which type of attenuation can be caused by the cable installer? - ANSWER - -
extrinsic
What are the two types of extrinsic attenuation? - ANSWER - - macrobending
- microbending
What type of bending is due to tight tie-wraps? - ANSWER - - microbending
What type of bending is due to exceeding the bend radius? - ANSWER - -
macrobending
What is dispersion? - ANSWER - - The spreading of light with respect to time as it
travels down the fiber
Why can dispersion be a problem in multi-media fiber? - ANSWER - - Due to there
being many pathways for the light to travel, and therefore the differing speeds at
which the light may travel through each of them, the number of light pulses in an
interval is limited.
What type of dispersion affects single-mode fiber? - ANSWER - - Chromatic
Dispersion
- Described as a combination of waveguide and material dispersions.
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