True/False
Indicate whether the statement is true or
false.
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1.
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Fiber characterization includes CD, PMD and SA tests in addition to the usual
connector inspection, insertion loss and OTDR tests.
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2.
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All fibers intended for use at speeds of over 1 gigabit/s require fiber
characterization.
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3.
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Polarization mode dispersion (PMD) can be affected by environmental factors such
as wind vibrating aerial cables or trains and trucks vibrating the gournd near underground
cables.
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4.
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Polarization mode dispersion (PMD) effects can be compensated by using special
fibers near the fiber optic transceiver.
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5.
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Chromatic dispersion (CD) effects can be compensated by using special fibers
near the fiber optic transceiver.
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Multiple Choice
Identify the choice that best completes the
statement or answers the question.
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6.
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The development of _______ allowed the use of coarse wavelength division
multiplexing (CWDM) over the full range of singlemode fiber wavelength bands.
a. | Bend insensitive fiber | b. | Multicore fiber | c. | Hollow
fiber | d. | Low water peak fiber |
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7.
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Material dispersion in singlemode optical fiber is caused by the difference in
the _______ of the fiber at different wavelengths.
a. | Mode field diameter | b. | Attenuation | c. | Index of
refraction | d. | Scattering |
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8.
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Waveguide dispersion in singlemode optical fiber is caused by the difference in
the _______ of the fiber at different wavelengths.
a. | Mode field diameter | b. | Attenuation | c. | Index of
refraction | d. | Scattering |
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9.
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Fiber characterization test results should be compared to _____ to determine if
the cable plant is capable of supporting the network speeds desired.
a. | Network specifications | b. | Fiber specifications | c. | Statistical models
of the fiber optic cable plant | d. | Loss budgets |
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10.
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Fiber characterization tests __________.
a. | Replace the usual insertion loss and OTDR tests for the cable
plant | b. | Must be done in addition to the usual insertion loss and OTDR
tests | c. | Are optional for links under 50 km long | d. | Are optional for
links under 100 Gb/s |
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Multiple Response
Identify one or more choices that best complete
the statement or answer the question.
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11.
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The special tests needed for fiber characterization of long haul high
speed fiber optic networks includes _______. (Check all that apply)
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12.
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Polarization mode dispersion (PMD) is caused by variations in the index of
refraction for the different polarization modes of light traveling in the fiber. This can be caused
by ________. (Check all that apply.)
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