单项选择题

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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单项选择题

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

多项选择题

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

单项选择题

Why are the 1300 nm and 1550 nm regions of the fiber spectrum primarily used for optical communications？（）

A. They are both regions of lowest loss.
B. They are both regions of low reflections.
C. They are both regions of low index of refraction.
D. They are both regions of low chromatic dispersion.
E. They are both regions of low Polarization Mode Dispersion （PMD）.

Which device creates an OEO conversion？ （）

相关考题

Which device creates an OEO conversion？（）