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單項(xiàng)選擇題

What is the phenomenon called where different wavelengths of light travel at different speeds？（）

A. OSNR
B. dispersion
C. light skew
D. attenuation

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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

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