True/False Indicate whether the statement is
true or false.
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1.
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Fiber optic links generally use two fibers for full duplex (bidirectional)
links.
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2.
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LEDs have higher output power and bandwidth than lasers.
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Multiple Choice Identify the choice that best
completes the statement or answers the question.
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3.
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Multimode fiber systems operation at speeds of 1 Gb/s or more use ____
sources.
A. | LED | B. | VCSEL | C. | F-P
laser | D. | DFB laser |
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4.
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The ________ of a laser makes the effective bandwidth of multimode fiber higher
than with LEDs.
A. | Restricted modal launch | B. | Higher power | C. | Lower
power | D. | Bandwidth |
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5.
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Short wavelength 850 nm links can use ______detectors in the receiver.
A. | Silicon | B. | Germanium | C. | InGaAs |
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6.
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Long wavelength singlemode links at wavelengths in the range of 1300-1650
nm links must use ______detectors in the receiver for the best sensitivity performance.
A. | Silicon | B. | Germanium | C. | InGaAs |
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7.
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Fiber amplifiers and DWDM work in the ______ wavelength range.
A. | 650-850 | B. | 850-1300 | C. | 1300-1550 | D. | 1480-1650 |
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Multiple Response Identify one or more choices
that best complete the statement or answer the question.
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8.
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Singlemode transceivers use _____ sources for their higher coupled power and
bandwidth.
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9.
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Multimode transceivers use _____ sources depending on their requirements for
coupled power and bandwidth.
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