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單項(xiàng)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

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單項(xiàng)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

多項(xiàng)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