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17 Cards in this Set
- Front
- Back
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The abrupt change in the refractive index core to cladding |
"Step index" refers to which of the following |
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Fasle |
A 50/125 fiber is used for single-mode applications |
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Called step index fiber |
When there is an abrupt in the refractive index from the core to the cladding in fibers |
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Modal dispersion |
What is the broadening of a pulse due to the different path lengths taken through the fiber by different modes called? |
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Chromatic Dispersion |
What is the broadcasting of a pulse due to the different propagation of a special components of the light pulse called? |
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Polarization mode dispersion |
What is the broadening of a light pulse due to the different propagation velocities of the X and Y polarization components of the light pulse called? |
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Polar Waves |
What are the light waves just below the frequencies in the visible spectrum extending up called |
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Incorporates the propagation of several wavelengths in the 1550 nm range for a single fiber |
DWDM does which of the following |
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Called optical ethernet |
Conventional high speed Ethernet network operating over fiber are which of the following |
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Fiber cross-connected |
What is t he optical patch panel used to interconnect fibers cables called? |
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Numerical aperture |
What is a measure of a fibers light appeptance? |
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False |
The following major criteria affect the choice of fiber type |
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Overcome pule-dispersion problems |
Graded index fiber was developed to do which of the following? |
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True |
Single mode fiber cables have a core diameter of about 7-10 micrometers. |
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It is encapsulated |
When SONET is in use, what happens to the signal when it is with the optical carrier? |
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1 |
How many DS-3 signals is one OC-1 capable of carrying? |
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51.84 MBPS |
What bit rate is possible when an OC-1 is carrying a DS-3 signal? |
