單項選擇題If the power is 0 dBm, what is the power in mW?()

A. 0 mW
B. 1 mW
C. 10 mW
D. 1.5 mW


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1.單項選擇題What is an advantage of an externally modulated laser over a directly modulated laser? ()

A. lower cost
B. higher chirp
C. easier to manufacture
D. higher dispersion tolerance
E. higher optical signal-to-noise ratio

3.單項選擇題Which device creates an OEO conversion? ()

A. amplifier
B. attenuator
C. regenerator
D. light emitter
E. optical switch
F. optical receiver
G. fiber-optic cable

4.單項選擇題What is the difference between the transmitted power and the sensitivity of the receiver? ()

A. OSNR
B. dispersion
C. attenuation
D. power budget
E. amplifier spacing
F. four wave mixing

5.多項選擇題Which three technologies are used to reduce chromatic dispersion accumulation in fiber-optic transmission systems?()

A. PIN photodiodes
B. zero-chirped lasers
C. Erbium-doped fiber amplifiers
D. dispersion compensating fiber
E. dispersion compensating Bragg grating

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Which is a legitimate bandwidth matched pair?()

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Which two can be transported in one AU-4? ()

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If node 2 is accepting line timing from node 1, node 2 will send () to node 1 as its SSM messge.

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What are two important considerations when using 2- or 4-channel 15216 OADMs?()

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Click the Exhibit button. Which type of multiplexer is shown in the exhibit?()

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